Classification of Builduing as per NBC

A building may be classified based on different parameters like occupancy, load transfer in the
structure, materials used, degree of fire resistance.

1. NBC Classification Based on Occupancy Fire design , bureau of Indian standards has categorized buildings into Nine types -

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 -

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 -

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 -

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 -

10. Group-D

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 -

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 :

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 -

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.