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The Bangladesh National Building Code (BNBC) 2020 was made under section 18A of the Building Construction Act, 1952 (Act No. II of 1953), repealing the Bangladesh National Building Code, 2006. It was published by the Ministry of Housing and Public Works as S.R.O. No. 55-Law/2020, and gazetted on 11 February 2021. Its purpose is to establish minimum standards for the design, construction, quality of materials, use and occupancy, location, and maintenance of all buildings in Bangladesh, in order to safeguard life, limb, health, property, and public welfare.

Parts

Part I: Administration

Title, purpose, and scope of the Code; definitions; abbreviations.

Part II: Development Control Rules

Applicability, the Building Regulatory Authority, permits, and inspections.

Part III: General Building Requirements

Occupancy classification, fire-resistance classification, and energy efficiency.

Part IV: Fire Protection

Means of egress and fire detection and extinguishing systems.

Part V: Building Materials

Scope, definitions, and standards for building materials.

Part VI: Structural Design

Loads, soils and foundations, and design of concrete, masonry, and steel structures.

Citing this Code

Sections are numbered per part and chapter as in the gazette (for example, Sec 3.8.4 refers to Part II, Chapter 3, Section 3.8.4). Use those numbers, not page numbers, when citing a provision: they’re stable across this site’s formatting.
Last modified on September 3, 2026