15.24 m or more shall be designated as a legitimate stage.
Storage Density A storage or display of solid or liquid merchandises shall not be exceeded 976 kg/m2 or 814 L/m2 respectively and shall be limited to the exempted quantity of an actually occupied net floor area. Maximum height of display or storing of merchandises shall not be exceeded 1829 mm or 2438 mm respectively. Allowable Height and Quantity may be less depending on the total area and the ceiling height of a store or a display. Street Or Road An open to outer air and unobstructed space having required width and used by the public as pedestrian or walkway, or animal or vehicular movement or any combination of these for the purpose of access to a plot or plots and is connected with the national public transportation system other than railway track shall be designated as street or road which may or may not be paved. Street Or Road Width The width of any street or road shall be measured form any plot to its opposite or face to face plot distance. For the determination of a road width, measurements shall be taken up to the connection of the national public transportation system other than railway track from any plot and the least width shall be the road width. Street Floor Level A story or floor level of a building which is accessible at the main entrance of a building from the street or from the outside at ground level and the floor shall not be more than three risers above or below the grade level. Structural Frame All members or elements such as columns, girders, beams, trusses and spandrels which forms a frame and have direct connections with bearing and transferring as an integral and essential elements for the stability of a building or a structure as a whole. Surge Prone Area Expected occurrence of a surge or wave of water may flow above 1 m or higher from the formation level. Tall Structure A building used for human occupancy located more than 80m high from the center of the adjacent road level or from lowest level of the fire department vehicle access. Terrace A paved surface not steeper than 1 in 20 and adjacent to a building which is connected by a stairway or a walking ramp or at the same level of any floor below the roof level of a building and at least one side of that area is exposed to the weather and having the guards and open to the sky. Universal Accessibility See ACCESSIBILITY Unprotected The element that shall have no prerequisites of fire protection rating. Ventilation Shaft, Natural A space sidewise enclosed but open to sky used to provide ventilation as inlet and/or outlet to adjacent interiors of dimensions less than that stipulated for internal courts of corresponding to building heights. Verandah Portions of a building at any level which have ceiling or roof and at least one side open up to 2.13 m height to the outside air and have guards as per provisions of this Code. Walkup Building A multi storied building which does not have any mechanical means of vertical circulation other than stairway shall be designated as a walkup building and the maximum height of the walkup building shall be as per provision of this Code or as approved by the authority having jurisdiction. 1.3 Land Use Classification A city or a township or a municipality or a union or any other habitat development shall be brought under a structured planning including detailed area planning to implement the intended land use pattern, transportation and maintaining environmental conditions by the development or planning authorities and shall be approved by the government. This land use classification may divide an area into zones such as residential, commercial, industrial, storage, green park, agricultural land, reserved area etc. or any combination of these. The land use zones shall be shown on the approved master plan of the area and the planning regulation shall clearly state the permitted occupancies, restricted occupancies and conditionally permitted occupancies for each zone. 1.4 Occupancy and Construction Classification of Buildings Every building or portion there of shall be classified according to its use or character of occupancy. A brief description of such occupancy groups is presented in Table 3.1.1. Details of all occupancy group and sub-divisions are set forth in Sec 2.1 of Chapter 2 of this Part. Types of construction based on fire resistance are specified in Table 3.1.2. Details of such types of construction are set forth in Chapter 3 of this Part. Any development permit for a site or a location shall clearly mention the permitted occupancy and construction type in accordance to Tables 3.1.1 and 3.1.2 for the existing or proposed building. Table 3.1.1: Summary of Occupancy Classification Occupancy Type Subdivision Nature of Use or Occupancy Fire Index* A: Residential A1 Single family dwelling A2 Two families dwelling A3 Flats or apartments A4 Mess, boarding houses, dormitories and hostels A5 Hotels and lodging houses B: Educational Facilities B1 Educational facilities up to higher secondary levels B2 Facilities for training and above higher secondary education B3 Pre-school facilities Occupancy Type Subdivision Nature of Use or Occupancy Fire Index* C: Institution for Care C1 Institution for care of children C2 Custodial institution for physically capable adults C3 Custodial institution for the incapable adults C4 Penal and mental institutions for children C5 Penal and mental institutions for adults D: Healthcare Facilities D1 Normal medical facilities D2 Emergency medical facilities E: Business E1 Offices E2 Research and testing laboratories E3 Essential services F: Mercantile F1 Small shops and market F2 Large shops and market F3 Refueling station G: Industrial Buildings G1 Low hazard industries G2 Moderate hazard industries H: Storage Buildings H1 Low fire risk storage H2 Moderate fire risk storage I: Assembly I1 Large assembly with fixed seats I2 Small assembly with fixed seats I3 Large assembly without fixed seats I4 Small assembly without fixed seats I5 Sports facilities J: Hazardous Building J1 Explosion hazard building J2 Chemical hazard building J3 Biological hazard building J4 Radiation hazard building Occupancy Type Subdivision Nature of Use or Occupancy Fire Index* K: Garage K1 Parking garage K2 Private garage K3 Repair garage L: Utility L Utility M: Miscellaneous M1 Special structures M2 Fences, tanks and towers- Fire Index: fire index is an absolute number, Occupancy group having same fire index may be permitted as mixed occupancy and different fire index shall be separated or detached as per provisions of this Code. Table 3.1.2: Summary of Classification of Buildings Based on Types of Construction Construction Group Construction Type Description Group I: Non-combustible Type I-A 4 hour protected Type I-B 3 hour protected Type I-C 2 hour protected Type I-D 1 hour protected Type I-E Unprotected Group II: Combustible Type II-A Heavy timber Type II-B Protected wood joist Type II-C Unprotected wood joist Type II-D Protected wood frame Type II-E Unprotected wood frame 1.5 Requirements of Plots 1.5.1 General Requirements 1.5.1.1 No building shall be constructed on any site which is water logged, or on any part of which is deposited refuse, excreta or other objectionable material, until such site has been effectively drained and cleared to the satisfaction of the Authority. 1.5.1.2 Provision shall be kept for any space within the plot left vacant after the erection of the building to be effectively drained by means of surface or underground drainage system.
3.5 plus 0.3 for each
additional 33 kV or part thereof.1.75 plus 0.3 for each
additional 33 kV or part thereof. 1.5.3 Road Level, Formation Level and Plinth Levels 1.5.3.1 Road level shall be lower than the habitable formation level of an area, except that of a hilly region. When a road is designed and designated as a part of national disaster management system, formation levels shall be determined by the authorities having jurisdiction. 1.5.3.2 The formation level of a plot shall not be lower than the adjacent road levels, except that of a hilly region. For hilly region, the elevation of the formation level shall be determined by the authority having jurisdiction. Where areas are not susceptible to flood or water logging, the formation level shall not be more than 450 mm high from the surface level of the center line of the adjacent roads. 1.5.3.3 The plinth level of a building shall be at least 450 mm above the surface level of the center line of the adjacent road. In Flood or Surge prone area plinth level shall be determined by the development authority having jurisdiction.
1.5.4
Boundary Wall
1.5.4.1
Solid boundary walls of a plot or in between plots shall not be higher than 1.5
m or a boundary made of grill, screen, balustrade etc. with a maximum height of 2.75 m
shall not require the permission of the Authority. For boundary walls made of a
combination of solid wall and grill or screen, the solid wall portion shall not be higher
than 1.5 m. The Authority may, on specific application, permit the use of higher
boundary walls.
1.5.4.2
Construction of a boundary wall shall be capable to resist collapsing as per
provision of this Code.
1.6
Plot Sizes
Plot divisions and plot sizes are part of integrated planning decision of detail area plan
and shall be determined by the Area Development Authority having jurisdiction. Where
no such guideline exists or yet to be undertaken, the criteria mentioned in Sec A.5 of
Appendix A regarding plot size shall be applicable.
1.7
Means of Access
The provision of means of access is implied on an area or a plot when more than one
plots are intended to be created or when more than one buildings are intended to be
erected respectively, where such plots or buildings do not have frontage to or not
approachable by a public or a private road or street. All buildings within such area or a
plot shall have access facilities which shall be connected with national road transportation
system. The components of means of access shall comply with the followings:
(a)
The access facilities shall meet the requirements of fire service vehicles and
engines movement for rescue and fire extinguishment operation.
(b)
Where required for fire apparatus access roads shall have an unobstructed
carriageway width of 4.8 m and the minimum vertical clearance shall be 5m.
The width and vertical clearance of fire apparatus access roads may be
increased as per requirement of the fire authority, if the clearances are not
adequate to provide fire apparatus access.
(c)
Access roads longer than 30 m having a dead end shall be provided with
appropriate provisions for turning around of the fire apparatus at the dead
end.
(d)
The provision of fire apparatus stall be marked by approved sign.
(e)
For large Assembly Occupancy of I1, I3 and I5, width of the approach road
shall not be less than 15 m.
(f)
The minimum width of the approach road for all plots other than residential
and assembly occupancies mentioned in Sec 1.7(e) and Sec 1.7(g) shall be
10.8 m.
(g) For area fully covered by private hydrant system with street side hydrant points and/or hydrants within the building equivalent to fire service and civil ফবভবহংব ফবঢ়ধৎঃসবহঃ্থং ংঢ়বপরভরপধঃরড়হ ধহফ:যব নঁরষফরহমং যধাব ভরৎব ংঃধরৎং ধং ঢ়বৎ provisions of this Code, the requirements of Sections 1.7(a), (b) and (c) may be exempted. This provision shall not be applicable for planning new developments. The minimum width of access roads for plot divisions in new developments shall follow guidelines of Table 3.F.1 of Appendix F. 1.7.1 Internal Access Road Internal access road is legally restricted for thoroughfare to the citizens and/or reserved for a group of people of a plot or an area that shall have access provisions for the department of fire service and civil defense.1.7.1.1 The width of access roads and drive ways in a plot or an area shall be decided
by the number and height of the buildings served thereby. Table 3.1.4: Maximum Permissible Length of Internal Access Roads in Non- Residential Plots Width (m) Maximum Permissible Length (m)10.8 or more
Unlimited 1.7.2 Pedestrian Path or Walkway or Footpath Any path including over bridge or bridge which is open to the outer air and may or may not be covered or roofed or an underpass design and designated for walkers only shall be designated as pedestrian path or walkway or footpath.1.7.2.1 An uncovered paved pedestrian path that links buildings and the approach road
shall not be included as a floor area of a building.1.7.2.2 The walkways shall not be used for any other purpose than pedestrian
movement and as accessibility route.1.7.2.3 The minimum width of the pedestrian path shall not be less than the calculated
width of connected corridor or passage or walking ramp of a building for entry or exit provided it is not enclosed by adjacent walls on both sides; for pedestrian paths enclosed by adjacent walls on both sides the minimum width shall be 1.25 m. For public buildings and places where high pedestrian movement is expected, Table 3.F.1 of Appendix F may be followed.1.7.2.4 Pedestrian walkways as accessibility route in public buildings shall comply with
the provisions of this Code. Any changes in elevation in accessibility route shall comply with the provisions of Appendix D (Universal Accessibility). 1.8 Open Spaces Within a Plot 1.8.1 Minimum open space requirements for the sides, rear and frontages of a plot shall be as per the provisions of this Code or the authority having jurisdiction. In absence of such guideline, provisions of Sec 1.8.2 to Sec 1.8.11 shall decide the provisions of open space for any building or buildings within a site. All such open spaces shall ensure access of the users. 1.8.2 At least 50 percent of the minimum open space in a plot shall remain unpaved with or without vegetation to allow water penetration. 1.8.3 The total open area in a plot on which a building of educational, institutional, health care occupancy is constructed shall not be less than 50 percent of the plot area. 1.8.4 The total open area in a plot on which a building of any occupancy, except those mentioned in Sec 1.8.3, is constructed shall not be less than 33 percent of the plot area. 1.8.5 For the purpose of Sec 1.8.2, Sec 1.8.3 and Sec 1.8.4, the total open area shall include all exterior open spaces and interior courtyards, but exclude the area of any lighting and ventilation shaft. 1.8.6 For approved row type or cluster type housing or site and service schemes, the requirement of Sec 1.8.3 shall be applicable. 1.8.7 Separation of Buildings in the Same Plot 1.8.7.1 More than one building in a plot shall comply with the requirements of means of access and setback distances in relation with the corresponding building height and the occupancy classification as per provisions of this Code and laws of the land. 1.8.7.2 To determine the separation distance between buildings of same height and same occupancy an equidistant imaginary line shall be drawn between the buildings where each building shall comply with requirement of setback and fire separation distance from that imaginary line. 1.8.7.3 Exception: Utilities under Occupancy L is incidental to operation in all type of occupancy except Occupancy J and shall not require the separation distance from the main occupancy. This exception shall not be applicable for Occupancy J. 1.8.7.4 When variation in either height or occupancy occurs, the imaginary line shall satisfy the setback distances for each individual building separately as shown in Figure 3.1.1. 1.8.7.5 Due to the common walls, row or semi-detached houses shall be treated as one building. For semi-detached houses separation distance in the detached sides shall comply with Sec 1.8.7.2 and Sec 1.8.7.3. Figure 3.1.1 Separation distance for variation in occupancies and heights 1.8.8 Front Open Space for All Buildings 1.8.8.1 Irrespective of the height of building frontage open space, as defined in Figure 3.1.2, shall be constructed at a distance of at least 4.5 m from the center of the street or at least 1.5 m from the street-front property line whichever is larger. 1.8.8.2 In a corner situation where two frontages of a plot intersects each other and form a sharp corner a turning clearance with a minimum radius of 2 m shall be required as per guidelines of Figure 3.1.3. No construction or visual obstruction shall be allowed within such turning clearance space. 1.8.9 Side and Rear Separation Distances 1.8.9.1 The minimum side and rear open space, as defined as Figure 3.1.2, requirements of a plot for buildings of various occupancy classes shall be as specified in Table 3.1.5. 1.8.9.2 For approved row type residential, mercantile or office as may be permitted by the respective city or development authority and for approved affordable row type, cluster or site and service schemes, the requirement of side separation distance may be waived as per provisions of this Code. Figure 3.1.2 Definition of front, side and rear of a plot Figure 3.1.3 Restrictions for corner-plots 1.8.9.3 For semi-detached buildings approved by the city or development authority, which are permitted to be constructed with one side on the property line or with pounding gap, the minimum requirements of open space, specified in Sections 1.8.9.1 and 1.8.9.2, for the side opposite to that property line shall be increased as per Table 3.1.5. The requirement of separation distance for the remaining sides shall remain unchanged. Table 3.1.5: Minimum Rear and Side Open Space Requirements of a Plot Occupancy Plot Size* (m²) Rear Separation Distance (m) Side Separation Distance a(m) Residential (Row type, not higher than 15m or 4 stories) Not over 67 1.25 Nil b Over 67 to below 1.5 Nil b Residential (Semi- detached, not higher than 10 stories or 33 m) 134 to 268 2.5 PGc, 2.5 Over 268 3.0 PGc, 2.5 Residential (Detached, Not higher than 10 stories or 33 m) 134 to 268 2.5 1.25 Residential (Detached, Not higher than 10 stories or 33 m) Over 268 3.0 1.25 Residential(Detached, Higher than 10 stories or 33 m) Over 268 3.0 3.0 Institution for care As permitted for this occupancy 3.0 3.0 Educational As permitted for this occupancy 3.0 3.0 Assembly Any 3.0 3.0 Business and Mercantiled (Not higher than 10 stories or 33 m) semi- detached Any 1.5 PGc, 3.0 Business and Mercantile (Not higher than 10 stories or 33 m) Detached Any 1.5 1.25, 2.5 Occupancy Plot Size* (m²) Rear Separation Distance (m) Side Separation Distance a(m) Business and Mercantiled (Higher than 10 stories or 33 m) semi-detached Over 536 3.0 PGc, 6.0 Business and Mercantile (Higher than 10 stories or 33 m) Detached Over 536 3.0 3.0 Industrial As permitted for this occupancy As per provisions of this Code As per provisions of this Code Storage As permitted for this occupancy As per provisions of this Code As per provisions of this Code Hazardous As permitted for this occupancy As per provisions of this Code As per provisions of this Code Notes: a The two dimensions separated by comma stands for each of side separation distances of a semi-detached development. b No side separation distance is required between buildings up to 15 m or 4 stories even for independent plots. প চএ ংঃধহফং ভড়ৎ ্তুচড়ঁহফরহম এধঢ়্থ, যিরপয রং ধ পধষপঁষধঃবফ মধঢ় ভড়ৎ ংধভব ফরংঃধহপব:ড় ধাড়রফ pounding due to lateral loads as per provisions of Part 6 of this Code. This gap is not required if the adjoining plots are consolidated and built monolithically. Where pounding gap do not comply with the minimum separation distance, all walls within the separation distance shall be barrier walls. d Mercantile occupancies shared walls between adjacent plots shall only be allowed in accordance to the detail area plan (DAP) administered by the development authority.- For narrow plots (with site frontage below 12 m) of size 268 m² or above in unplanned areas, the local regulatory authority may allow semi-detached typology with a minimum side separation distance of 3m on the unattached side.
1.8.10 Courtyard and Interior Courtyard
An area having proper dimensions as per provision of this Code and open to the sky from the formation level and surrounded by a building or a group of buildings or walls or combination thereof shall be designated as Courtyard. The minimum size of such courtyard shall be derived from Table 3.1.6 depending on the height of the highest building or highest wall abutting the courtyard. The shorter side dimension of such courtyard shall not be less than one-third of the longer side dimension. All such courtyards shall remain open to sky over its entire cross section. When the sum of exposure area of a courtyard to outer air through its adjacent walls exceed more than thirty percent area of its total peripheral enclosure, it shall be designated as Open courtyard. All other courtyards shall be designated as Interior or Closed courtyard.1.8.10.1 If any room depends entirely on an interior open space for its natural light and
ventilation, such interior open space shall be in the form of an interior courtyard open to the sky over its entire cross-section. The interior courtyard shall have the minimum dimensions depending on the height of the building as specified in Table 3.1.6. The shorter side dimension of such interior courtyard shall not be less than one-third of the longer side dimension. Table 3.1.6: Minimum Area of Interior Courtyard No. of Stories Maximum Height (m) Minimum Net Area of the Interior Courtyard, m2 Up to 3 12-13 14-15 16-17 18-20 Notes: 1. For buildings above 20 storeys height, the size of the interior courtyard shall not be less than the square of one-third the height of the tallest wall abutting the courtyard. 2. Enclosed open to sky spaces used to provide ventilation as inlet/outlet or daylight to adjacent interiors having dimensions less than that stipulated for internal courts of corresponding storey height given in this Table will be considered ventilation or lighting shafts and not interior courtyards and will follow minimum requirements stipulated in Table 3.1.111.8.10.2 The courtyard shall not be interrupted by any form of construction at the
courtyard level, except landscaping, sculpture, walkways and water bodies.1.8.10.3 If the courtyard is to serve as a component of the means of egress, it shall be
accessible from all exit points at ground level. 1.8.11 Permitted Construction in the Mandatory Open Space1.8.11.1 Landscaping, sculpture, walkways, water body shall be permitted in the open
space. Any such construction shall comply with Sec 1.8.2 of this Chapter.1.8.11.2 A maximum of 50 percent of the open space in a plot required by the
provisions of Sec 1.8.8 and Sec 1.8.9 may be used for construction of garage, ramps, caretaker or guards quarter and other services auxiliary to and required for the main occupancy of the building, provided that the requirement of community open space in Occupancy A3 is attained, and building is not higher than 10 storey or 33 m, and provided further that conditions (a) to (g) below are satisfied: (a) No such construction permitted in the open space shall be higher than 2.75 m from the formation level of the plot, except for the tops of inverted beams or intermittent parapets, which may rise up to 3.25 m. (b) No window, door or ventilator shall be placed on any wall adjacent to the abutting plot or street. (c) Entrance to the garage or sloping drive way shall not be directly from a public road or street. Distance between the plot line adjoining the road and the entrance to a garage or a sloping drive way shall be kept at least 1.5 m or4.8 m respectively.
(d) Drainage from the roof or any other part of such construction shall not be allowed to discharge into the adjacent property. Drainage from any part shall not discharge directly into the street through spouts. (e) No structure or room shall be constructed over the garage or any other permitted service structure within the limits of the mandatory open space. (f) The roof of any such construction permitted in the mandatory open space shall not be used as a balcony or a terrace or in any such manner that would interfere with the privacy of the occupants of the adjacent property. (g) No toilet, generator room or electrical substation shall be constructed adjoining the abutting property or street.1.8.11.3 Edges of slope roof or cornice of the building may be projected into the
mandatory open space for a maximum distance of 750 mm. Such extensions shall not be accessible from the building at any level. The construction of a roof or a cornice shall be as such that rain or other water shall not fall from there into the adjacent plot or street.1.8.11.4 Sunshades over exterior doors or windows of the building may extend into the
mandatory open space for a maximum distance of 750 mm, provided that such sunshades are at least 2.5 m above the formation level of the ground.1.8.11.5 Cantilever canopy at a clear height of at least 2.5 m above the formation level
may project into the mandatory open space provided that a horizontal clearance of at least 1.5 m is maintained between the edge of the canopy and the property line. The top surface of such canopy shall not be used as a balcony and shall not be accessible from the building.1.8.11.6 Balconies at levels higher than 6 m may project into the mandatory open space
by not more than 0.9 m provided that a clearance complying the separation distances required in Sec. 1.8.8 and Sec. 1.8.9 are maintained between the edge of the balcony and the property line. Balcony shall be constructed as per provisions of this Code.1.8.11.7 Water reservoirs, septic tanks, inspection pits, sewer and other underground or
above ground service lines shall be permitted in the open space provided that no part of such construction is elevated more than 150 mm above the formation level and the 50 percent mandatory open space shall be unpaved green area. 1.9 General Height and Area Limitations 1.9.1 Authorities having jurisdiction shall permit the built area and building height for an area in accordance to the proposed density of the detail area plan (DAP). Where no such guideline is available, the height of the building shall be determined by the guidelines of Sections 1.9.2.1 to 1.9.2.9 and the built area will be a resultant of open space requirement and permitted height. 1.9.2 Height Limitations Based on Road Width 1.9.2.1 The maximum height of any building of Type I-A and Type I-B construction shall not exceed the nominal value of two times the sum of the width of the front road and the front open space (distance between the front property line and the building).For the purpose of fulfilling this requirement, the height limitations specified in Table 3.1.7 shall apply. 1.9.2.2 For plots having front road width not less than 23 m in an approved residential or business and/or mercantile area, there shall be no restriction on height for residential, business and mercantile buildings of Type I-A and I-B construction provided the minimum open space requirements specified in Table 3.1.8 are satisfied. 1.9.2.3 For Type I-C construction, the maximum permissible height of the building shall be 4 storeys or 14 m for values of two times the sum of the width of the front road and the front open space not less than 13.6 m. Table 3.1.7: Height Limitations Based on Road Width and Front Open Space 2 × (Front Road Width Plus Front Open Space) Maximum Permissible Height in Terms of Construction Classification Group- I* Group-II* Type I-A and Type I-B Type I-C Type I-D Type II-A, II- B, II-D No. of storeys Height (m) No. of storeys Height (m) No. of storeys Height (m) No. of storeys Height (m) Below 10.6 m10.6 m to below 13.6 m
13.6 m to below 16.6 m
16.6 m to below 19.6 m
19.6 m to below 22.6 m
22.6 m to below 25.6 m
25.6 m to below 28.6 m
28.6 m to below 31.6 m
31.6 m to below 34.6 m
34.6 m to below 37.6 m
37.6 m to below 40.6 m
40.6 m to below 43.6 m
43.6 m to below 46.6 m
and so on in increments of 3 m
Notes:
1.
For plots with front road width (Sec 1.9.2.5) not less than 23 m, residential and business
and mercantile buildings of Type I-A and I-B construction shall have no height restriction
subject to additional open space requirements (Sec 1.9.2.2).
2.
The maximum permissible height for Type I-C construction is 4 storeys or 14 m (Sec
1.9.2.3).
3.
The maximum permissible height for Type I-D and I-E of Group I construction and all
types of Group II construction is 3 storeys or 11 m (Sec 1.9.2.4).
- For all Unprotected Construction Types I-E of Group I, Type II-C and Type II-E of Group II the maximum allowable storey and height shall be one storey and 8 m respectively. 1.9.2.4 For Type I-D and I-E of Group I construction and all types of Group II construction, the maximum permissible height of the building shall be 3 storeys or 11 m for values of two times the sum of the width of the front road and the front open space not less than 13.6 m. 1.9.2.5 For applying the provisions of Sections 1.9.2.1 to 1.9.2.4, the width of the front road for the layouts shown in Figures 3.1.2(b), (c), (d), (e) and (f) where the plot abuts more than one road, shall be taken as the average of the widths of the abutting roads. 1.9.2.6 For buildings more than six storeys or 20 m high, the following arrangements shall be provided: (a) Lifts of adequate size, capacity and number as per provisions of this Code. (b) Adequate fire protection and firefighting arrangements shall be as per provisions of this Code. (c) Adequate emergency fire escape stair depending upon the type of occupancy and occupancy load as per provisions of this Code. (d) For buildings with unlimited height (UL) provisions of Table 3.1.8 shall be mandatory. Table 3.1.8: Minimum Separation Distance for Buildings of Unlimited Height Occupancy Minimum Separation Distance from Plot Frontage Rear Side (m) (m) (m) Residential 4.0 6.0 4.0 Business, Mercantile. 6.0 6.0 6.0 Educational, Institutional for care, Medical facilities. 6.0 6.0 6.0 Others As per provision of this Code
1.9.2.7
For buildings in the vicinity of airports or aerodromes, the height shall be
limited by the requirements of the civil aviation authority, city or area development
authority or other concerned agencies of the Government.
1.9.2.8
Where more than one construction type is permitted within a building as per
provision of this Code among them the lowest fire resistance rated construction type shall
be applicable for FAR allotment, and lowest fire resistance rating shall be applicable for
the whole structure.
1.9.2.9
For road width above 8.8 m, the building form shall be contained within the
pyramid formed by the sky exposure planes on all four sides or as many sides it has,
following the guidelines of Figure 3.1.4.
1.9.3
Area Limitations based on FAR
1.9.3.1
Fire separation distance in terms of building setback and building occupancy
type and construction type shall govern the FAR to restrict fire hazard volume. FAR shall
be decided by the development authorities having jurisdiction.
1.9.3.2
For Occupancy in which unlimited FAR is permitted, the minimum open
space requirements specified in Table 3.1.8 shall be applicable.
1.9.3.3
For the purpose of calculating FAR, the area of any floor including basement,
of which at least two-third is used exclusively for car parking and the remaining one-
third is used for purposes such as mechanical plant room, electrical substation, security
cabin, reception booth, water tank, pump house, stairs, lifts and which are accessory to
the main occupancy, shall be excluded from the calculation of the total floor area of the
building.
1.9.3.4
For area with high public transport accessibility and high FAR the requirement
for residential private parking should not be more than one car for every four dwellings
or as per guidelines of the authority having jurisdiction.
1.9.3.5
In specifying FAR for a zone or an area, the city or area development
authority shall follow the guidelines of Appendix-A (Development Control) and shall
take into consideration the following:
(a)
Proximity to Public/Mass Transport network
(b)
Availability of Urban social infrastructure including urban open spaces
(c)
Environmental balance
(d)
Adequacy of present and proposed Utility services
(e)
Occupancy group and land-use permitted by master plan
(f)
Type of construction
(g)
Population density of the area
(h)
Width of approach roads
(i)
Traffic density in the approach roads
(j)
Local fire-fighting facilities
(k)
Parking facilities
(l)
(m)
(n)
(o)
(p)
(q)
(r)
(s)
Figure 3.1.4 Limiting envelope for stepped tower structures
1.10
Off Street Parking Spaces
1.10.1
Off street parking requirement for a building or an area shall be decided by the
development authority having jurisdiction. A suggestive guideline for off-street parking
given in Appendix F might be followed.
1.10.2
Sloping drive way steeper than 1 vertical to 8 horizontal shall not be credited as
a walking ramp. When a sloping surface used for both driveway and walking ramp shall
be demarcated and the minimum width and sloping ratio of walkways shall be as per
provisions of this Code. Sloping driveway entering below grade level shall be protected
to prevent water flow into any level that they lead to.
1.11
Street Encroachment
No part of any building shall project beyond the property line or building line established
by the provisions of this Code into the street, except the following:
(a)
Below Grade: The footing of the boundary wall adjacent to the street may
encroach on to the street land not more than 0.3 m and shall rest at least at a
depth of 1.5 m below grade.
(b)
Above Grade: Marquee, canopy or other temporary cantilever type projection
from buildings of business and mercantile occupancy may project on the
footpath of a road, provided that no part of such projection is below a height
of 3 m from the footpath level and that the outer edge of the canopy is at a
minimum clear horizontal distance of 0.25 m from the road side edge of the
footpath. The canopy shall be so constructed as to be readily removable
without endangering the building structure. No canopy shall project into a
street without a footpath. Such canopies shall not project over Mandatory
Open Space (MOS). Under no circumstances shall the top of the canopy be
used by any floor of the building.
1.12
Community Open Space And Amenities
Community open space for an area or a building shall be decided by the development
authority having jurisdiction. Where no such guide line exists or yet to be developed, the
guidelines of Sections A.4 and A.5 of Appendix A and Sec B.3.2 of Appendix B shall be
applicable.
1.13
Minimum Standard Of A Dwelling
Minimum standard of a dwelling shall be decided by the development authority having
jurisdiction.
1.14
Requirements of Parts of Buildings
1.14.1
Plinth and Formation Levels
The plinth and formation levels of the building and the plot shall conform to the
requirements of Sec 1.5.3.
1.14.2
Room Dimensions
1.14.2.1 Ceiling heights
(a) All habitable rooms in non-air-conditioned residential, business and mercantile buildings, apart from kitchen, store room, utility room, box room and garage, shall have a ceiling height not less than 2.75 m measured from the finished surface of the floor to the underside of the finished ceiling, or false ceiling. A maximum of one-third of the floor area of such habitable rooms may, however, have a minimum ceiling height of 2.44 m. For air-conditioned rooms in such buildings, the minimum ceiling height shall be2.44 m.
In the case of pitched roof without a horizontal ceiling the lowest point of the finished ceiling shall be at least 2 m above the finished surface of the floor and the average height of the ceiling shall not be less than 2.44 m. (b) The minimum clear head room under the ceiling, folded plate, shell etc. and under the false ceiling or duct in an air-conditioned room shall not be less than 2.44 m. The minimum clear distance between the floor below and the soffit of a beam shall not be less than 2.15 m. (c) The requirements of ceiling height for buildings of occupancy other than residential and business and mercantile shall be as follows: Table 3.1.9: Minimum Ceiling Heights for Different Occupancies Occupancy Minimum Ceiling Height Educational, Institutional, Health Care, Assembly. 3 m for non-air-conditioned and 2.6 m for air- conditioned buildings. Industrial, Storage, Hazardous.3.5 m for non-air-conditioned and 3.0 m for air-
conditioned buildings.1.14.2.2 Room sizes
All habitable rooms used for sleeping and other purposes of a dwelling unit shall not be less than 9.5 m² of net floor area with a minimum width of 2.9 m and shall comply with indoor air quality requirement as per provisions of this Code. Other non-habitable rooms in the dwelling unit shall have a minimum area of 5 m² with a minimum width of 2 m.1.14.3 Kitchen
1.14.3.1 The minimum clear height of kitchen measured from the finished surface of
the floor to the finished ceiling shall be 2.75 m, except for any floor trap of the upper floor which shall have a minimum clearance of 2.15 m above the finished floor. The minimum clear height of kitchen shall be 2.15 m where mechanical exhaust is installed.1.14.3.2 The minimum floor area of kitchen without provision for dining shall be 4 m²
with a minimum width of 1.5 m. The minimum floor area of a kitchen which is intended to provide dining or occasional sleeping space shall be 7.5 m² with a minimum width of2.2 m.
1.14.3.3 Every kitchen shall be provided with a kitchen sink or other means for
washing utensils. The waste water shall be discharged into the waste water pipe or drain as per provisions of Part 8.1.14.3.4 The floor of the kitchen shall be slip-resistant and water tight.
1.14.3.5 Every kitchen shall be provided with window having a minimum area of 1 m²
which shall open to the exterior or to an interior open space of adequate dimensions complying with Sec 1.19.1.14.3.6 It is recommended that all kitchens should be designed as accessible kitchens
for people with disability considering the door width, accessible route, turning clearance within the kitchen, counter heights, placement of fixtures, knee and toe clearances under counters and other relevant criteria in compliance to the guidelines of Appendix D.1.14.4 Bathroom and Toilets
1.14.4.1 The height of any bathroom, toilet or water closet shall not be less than 2.15 m
measured from the finished floor surface to the finished ceiling or false ceiling or to the lowest point of any trap of the upper floor’s plumbing system.1.14.4.2 The minimum requirement of floor area and width of a bathroom with 3
fixtures, 2 fixtures or single fixture shall conform to the space standards of Table 3.1.10.1.14.4.3 Details for requirement of adaptable or accessible toilets shall follow the
guidelines of Appendix D. Table 3.1.10: Bathroom Space Standards Facility Minimum Width (m) Floor Area (m2) Water closet + bathing + hand washing 1.25 3.00 Water closet + bathing 1.00 2.80 Bathing only 1.00 1.50 Water closet only 1.00 1.20 Adaptable toilets 1.50 as per Appendix D1.14.4.4 No bathroom or toilet containing water closet shall open directly into any
kitchen or cooking space by a door, window, ventilator, fanlight or any other opening. Every such bathroom or toilet shall have a door completely shutting it off from the exterior.1.14.4.5 Every bathroom, toilet and water closet shall be located against an exterior
wall or wall on the interior open space (see Sec 1.8.10), except where they are ventilated through an interior lighting and ventilation shaft. Such interior lighting and ventilation shafts shall have the minimum dimensions specified in Table 3.1.11 for different heights of buildings. In addition, shafts for buildings exceeding 6 storeys or a height of 20 m shall be mechanically ventilated. All shafts must be accessible at the ground floor level for cleaning and servicing purposes. Table 3.1.11: Minimum Dimensions of Lighting and Ventilation Shaft Building Height Minimum Net Cross Sectional Area of Shaft Minimum Width of Shaft No. of Stories Height (m) (m2) (m) Up to 3 Over 6* Up to 11 Over 20 1.50 3.00 4.00 5.00 6.50 1.00 1.20 1.50 2.00 2.50- Mechanical ventilation of the shaft shall be provided for buildings over 6 stories high.
1.14.4.6 Floors of bathrooms, toilets or water closets shall be treated with water
repellent material and shall be water tight. All bathroom walls or partitions shall be treated with non-absorbent water repellent smooth impervious finish material to a height of not less than 1 m above the finished floor level. The floor shall be sloped gently towards gratings or openings of the floor traps.1.14.4.7 All public buildings shall have adaptable toilet as per requirement of the
development authorities having jurisdiction. Each dwelling unit shall have at least one adaptable toilet. The details of such toilet shall comply with requirements of Appendix D (Universal Accessibility).1.14.5 Stairways
1.14.5.1 Limiting Dimensions
The minimum width of the staircase for various occupancies shall be as specified in Table 4.3.6 of Part 4.1.14.5.2 Sum of two risers and one tread excluding nosing dimension shall not be less
than 610 mm and not more than 648 mm. All Risers and Treads shall be identical in consecutive two flights starting from one floor to another floor. Difference between two consecutive risers or treads shall not be more than 5 mm. The combination of riser and treads shall comply with Table 4.3.4 Chapter 3, Part 4.1.14.5.3 The maximum flight height between landings shall not be more than 3660
mm. For Assembly occupancy maximum flight height between landings shall not be more than 2440 mm.1.14.5.4 The minimum clear head room between flights of a staircase shall be 2.15 m.
The clear head room may be reduced to 2.03 m for not more than three flights in any staircase.1.14.5.5 The minimum clear height of any passage below a landing providing access to
non-habitable and service spaces shall be 2.03 m. The minimum clear height of all other passages and spaces below a landing shall be 2.15 m.1.14.5.6 Handrails shall have a minimum height of 0.9 m measured from the nose of
stair to the top of the handrail. 1.14.6 Mezzanine Floor1.14.6.1 Each mezzanine floor area in a space shall not exceed one-third of the main
floor area. The area of the mezzanine shall be included in calculating the FAR.1.14.6.2 The clear headroom both over and under the mezzanine floor shall be at least
2.2 m.
1.14.6.3 The lighting and ventilation of the space both over and under the mezzanine
floor shall not be obstructed in any way. 1.14.7 Lofts1.14.7.1 Space under slope roof termed lofts shall not be used as a habitable space
where minimum ceiling height is less than the requirement but more than 1.5 m.1.14.7.2 The minimum ceiling height requirements for various rooms specified under
Sections 1.14.2.1, 1.14.2.2, 1.14.3 and 1.14.4 shall be maintained under the loft.1.14.7.3 A maximum of 25% of the floor area of any room may be covered by a loft,
except bathrooms, toilets, water closets, store rooms and corridors where the whole area may have an overhead loft.1.14.7.4 The loft shall not interfere with the lighting and ventilation of any room.
1.14.8 Cabins or Chambers1.14.8.1 Cabins or Chambers created by removable partitions on open floor shall have
a minimum area of 3m2.1.14.8.2 Clear passages at least 0.75 m wide (or as stipulated in Part 4) shall be
maintained between the cabins leading to a means of exit which shall in no case be further than 16 m from any cabin.1.14.8.3 A clear gap of at least 300 mm shall be maintained between the top of the
partition walls enclosing the cabin and the ceiling, unless the cabin is exposed to the exterior deriving natural light and ventilation or is artificially lighted and ventilated. 1.14.9 Store Room A store room provided in a dwelling unit of a residential building shall have a minimum area of 1.5 m2 with a minimum width of 1 m. The clear height of the store room shall not be less than 2.2 m.1.14.10 Private Garage
Private garage in residential occupancy A1 and A2 building shall have a minimum clear height of 2.03 m. The minimum area of the parking stall in a garage shall be decided in accordance with the provision of Sec F.7.1 of Appendix F.1.14.11 Basement
Any underground floor of a building wholly or partially below formation level shall be called a basement and shall satisfy the requirements of the following sections.1.14.11.1 Subject to the provision of Sec 1.9.3.3, the area of the basement shall be
included in the calculation of FAR.1.14.11.2 The walls and floors of the basement shall be damp-proof and water-proof as
per provision of this Code. The basement shall be protected against surface and sub- surface waste water intrusion.1.14.11.3 The basement shall be lighted and ventilated as per provision of this Code.
1.14.11.4 The staircases of a building serving above grade level also entering into below
street floor level shall be enclosed by barrier wall with two door smoke proof vestibule shall have minimum 2 hours fire resistance time.1.14.11.5 Ramp provided as walkways shall not be steeper than 1 vertical in 8
horizontal.1.14.11.6 The clear height of the basement below soffit of beams shall not be less than
2.03 m.
1.14.12 Entrance to the Building
All buildings shall have a covered entrance or other covered area for callers waiting at the door. The main entrance door to the building shall not open into an uncovered exterior. All public buildings shall have universal accessibility as per provisions of Appendix D of Part 3.1.14.13 Roof Drainage
1.14.13.1 The roof of a building shall be constructed in such a manner that rain water is
drained freely away from the building without causing dampness of the roof or the walls of the building or of an adjacent building.1.14.13.2 Water from the roof shall not be discharged into the adjacent property or
street.1.14.13.3 For one or two storied buildings with flat or pitched roof, rain water may be
discharged directly to the ground, in which case the roof shall have extended eaves or cornices to direct the water away from the walls.1.14.13.4 For other buildings, gutters or parapets shall be provided to direct the water
to the piping of an adequate rain water drainage system.1.14.13.5 The roof shall be impermeable or shall be treated with an impervious
material to make it effectively water tight. Flat concrete roofs shall be topped with an impervious layer of lime concrete or other effective means of waterproofing. All flat roofs shall be sloped gently towards gutters, gratings or mouths of the rain water drainage pipes.1.14.13.6 For sustainable development, building may have rain water harvesting
system as stipulated in Part 8, Chapter 7.1.14.14 Parapet
All accessible flat roofs shall be enclosed by parapets or guardrails having a height of at least 1 m. All such parapets and guardrails shall be designed to withstand the lateral forces due to wind and occupancy in conformity with the provisions of Part 6 of this Code.1.14.15 Septic Tank
A septic tank shall be provided within the premises for disposal of sewage, whether any public sewer is available or not. The location, design and construction of the septic tank shall conform to the requirements of this Code. 1.15 Landscaping 1.15.1 Plantation of trees and shrubs within the open spaces of a plot aimed at enhancing the environmental quality of the building shall comply with the requirements of this Section. 1.15.2 Trees and shrubs shall be planted judiciously to meet the requirements of shade and sunshine, to control noise and dust, to provide privacy and to improve visual quality, without jeopardizing natural ventilation and lighting of a building. 1.15.3 Species of trees shall be so chosen and planted that their roots do not endanger the building foundation and their branches do not interfere with the building superstructure. This shall be achieved by maintaining sufficient distance between the trees and the building depending on the species of the tree. 1.16 Damp-Proofing and Waterproofing Foundation, floor slabs, walls and roof of a building shall be damp proof, water proof and weather proof in accordance with the provisions of Part 6 of this Code. 1.17 Existing Buildings 1.17.1 Existing buildings and structures in their present occupancy condition shall not be required to be in full compliance with all the requirements of this Part of this Code. Additions or alterations to such existing buildings or change of use thereof shall not be permitted if such addition, alteration or change of use or occupancy is likely to render the building more hazardous with respect to fire safety, life safety and sanitation than it was before. 1.17.2 Any horizontal or vertical extension of an existing building or any change of use thereof shall subject the altered building or occupancy to the provisions of this Code for a new building. The building together with the additions and changes shall not exceed the height, area and open space requirements for new buildings specified in this Code. 1.17.3 All buildings and structures, both new and existing shall be maintained in a safe and sanitary condition as provided for in this Code. To determine compliance with this requirement, the Authority may cause the building or structure to be periodically inspected. 1.17.4 Any proposed change in an existing building or structure shall have to satisfy the requirements set forth in Part 6 of this Code. 1.18 Buildings and Areas of Historical or Architectural Value 1.18.1 Buildings and areas of Historical value are part of our heritage and cultural inheritance and should therefore be protected. Similarly buildings and works under the jurisdiction of and identified by the Authority as having architectural value shall also be protected. The identification, listing and classification of all such buildings and places of historic or architectural values shall follow the guidelines of Chapter 3 of Part 9, Section1.5 of Part 1 and Section 3.14 of Part 2.
1.18.2 Repairs, alterations and additions necessary for the preservation, restoration, rehabilitation, continued use or adaptive reuse of such historic buildings and structures, and of buildings and works of architectural value may be exempted by the Authority from having to be in full compliance with all the requirements of this Code, provided that the restored building or structure will be no more hazardous, if any, than the existing conditions in terms of life safety, fire protection and sanitation. All such buildings and places shall comply with the provisions for conservation of heritage buildings or area of Part 9. 1.19 Ventilation, Lighting and Sanitation 1.19.1 All rooms and interior spaces designated for human occupancy shall be provided with means of natural or artificial lighting and natural or mechanical ventilation as per provisions of this Code. At least one side of all habitable rooms shall be exposed to an exterior or an interior open space or to a balcony or verandah exposed to an open space. 1.19.2 All buildings shall have water and sanitation facilities as per provisions of this Code. 1.19.3 Every kitchen shall have facility for washing of utensils. 1.19.4 Every building or independent unit thereof shall be provided with at least one water closet. 1.19.5 All naturally ventilated and illuminated interior spaces, staircases and other areas of human occupancy in a building shall have windows or ventilators opening directly to the exterior or an interior open space or to a verandah. Ventilation of bathrooms may also be achieved through ventilation shafts as provided for in Sec 1.14.4.5. 1.19.6 All habitable and non-habitable spaces within a building shall have the following minimum aggregate area of openings in the exterior wall, excluding doors, expressed as percentage of the net floor area: Table 3.1.12: Dimension of Openings for Different Uses Space Percent of Net Floor Area Habitable rooms such as those used for sleeping, living, study, dining etc. Kitchens* Non-habitable spaces such as bathrooms, store, staircase and other utility- Minimum height from the window sill of a kitchen shall be 450mm above cooking range. Air flow on cooking range shall be restricted.