Classification of Builduing as per NBC
- 1. NBC CLASSIFICATION BASED ON OCCUPANCY F I R E D E S I G N , B U R E A U O F I N D I A N S T A N D A R D S H A S C A T E G O R I Z E D B U I L D I N G S I N T O N I N E T Y P E S - Group-A Residential Group-B Educational Group-C Institutional Group-D Assembly Group-E Business Group-F Mercantile Group-G Industrial Group-H Storage Group-J Hazardous
- 2. GROUP-A These shall include any building in which sleeping accommodation is provided for normal residential purposes with or without cooking or dining or both facilities.
- 3. GROUP-A Building under group-A can be subdivided into 6 categories - A 1- Lodging or rooming house- A 2 – One or two family private dwelling A 3 – Dormitories A 4 – Apartment houses A 5 – Hotel A 6 – Starred hotel
- 4. GROUP-B The second category of hazard occupancy is educational institute. These shall include any building used for school college, other training institutions for instruction , education purposes.
- 5. GROUP-B Building under group-B can be subdivided into 2 categories - B1– Schools up to senior secondary level - • Including building or building under single management used for student not less than 20 in number. B 2- All other training institutes - • These shall include any building or group of building under single management used for student not less than 100 in number.
- 6. GROUP-C The third hazard category is institutional buildings- a building or part of the building used for the purpose of medical and other treatment or care of person suffering from physical or mental illness. Institutional Buildings ordinarily provide sleeping accommodation for the occupants.
- 7. GROUP-C Building under group-C can be subdivided into 3 categories - • Building or buildings under single management used for housing persons suffering from physical limitations because of health or age such as hospitals, nursing homes, sanatoria infirmaries. C1- Hospitals and sanatoria- • Building or buildings under single management used for housing custody and care children and the aged, such as homes, orphanages. C 2- Custodial institutions- • Building or buildings under single management used for housing persons under restraints or detained for corrective purpose such as jail prison, mental hospital. In this liberty of person is restricted. C 3- Penal and mental institutions-
- 8. GROUP-D These shall include any building or part of building where number of persons gather for amusement recreation, social, religious, patriotic reasons these are designated as assembly building. Theatres motion pictures house, auditoria, exhibition hall, restaurants, multiplexes, and underground or elevated railways also come under this category.
- 9. GROUP-D Building under group-D can be subdivided into 7 categories - D1 • Building having a theatrical or motion picture are any other Stage and fixed seats for over 1000 person D2 • Building having a theatrical or motion picture are any other Stage and fixed seats up to 1000 person D3 • Building without a permanent stage having accommodation for 300 or more persons but no permanent seating arrangement . For example dance hall, night club.
- 10. GROUP-D D4 • Building without a permanent stage having accommodation for less than 300 persons but no permanent seating arrangement . D5 • All other structures including temporary structures designed for assembly of people not covered D1 to D4 at ground level. D6 • Building having mixed occupancies providing facilities such as shopping, cinema, and multiplexes. D7 • All other structures, elevated or underground, for assembly of people.
- 11. GROUP-E These shall include any building or group of building which is used for transaction of business for keeping of accounts and records and similar purposes etc. courthouses and libraries shall be classified in this group. As the principal function of this is transaction of public business and keeping books and records.
- 12. GROUP-E Building under group-E can be subdivided into 5 categories - • Offices, bank, professional establishments offices of architects, doctors, and police station. E1 • Laboratories, research establishment , libraries. E2 • Data processing centers, Information technology parks, call centers. E3 • Telephone exchange E4 • Broad casting stations and TV station, Air Traffic control towers. E5
- 13. GROUP-F This shall include any building or part which is used as used as shops, markets, for display and sale of goods either wholesale or retail.
- 14. GROUP-F Mercantile building is subdivided into 3 group : F1- Shops stores departmental store markets with area up to 500m2 F2- Shops stores departmental store markets with area more than 500m2 F3- Underground shopping centers, storage and service facilities incidental to sale of mercantile and located in the same building.
- 15. GROUP-G Group-G Is industrial building which means any building in which products/materials of all kind and properties are fabricated, assembled, manufactured or processed.
- 16. GROUP-G Building under group G can be subdivided into 3 categories - G 1- G 2- G 3- • Building used for low hazard industries • Building used for moderate hazard industries • Building used for high hazard industries
- 17. GROUP-H Group-H : is storage which means any building used for storage of goods including servicing, processing or primarily for the storage or sheltering of vehicles or animals. For example warehouse, cold storage, store houses, garages ,stables .
- 18. GROUP-J Group-J is hazardous any building which is used for the storage, handling and manufacture or processing of highly combustible or explosive material / products which are liable to burn with extreme rapidity or which may produce poisonous fumes or explosions during storage are classified under this category.