Section 2(74) in New Town Kolkata Planning Area (Building) Rules, 2014
(74)"use" means the purpose for which a plot or a part of a plot or a building is used or intended to be used:For the purpose of classification of a plot for undertaking building operation or a building according to occupancy, occupancy shall be deemed to include subsidiary occupancies, which are contingent upon it. The occupancy classification shall include residential, educational, institutional, assembly, business, IT&ITES, mercantile (retail), mercantile (wholesale), industrial, storage and hazardous. Principal occupancy shall be the occupancy covering 75% or more of the floor area of the building. The classification of buildings based on principal occupancy, shall be as follows:(i)"Residential Building" that is to say, any building in which sleeping accommodation is provided for residential purpose as the principal use with or without cooking facility or dining facility or both and such building shall include one or two or multi - family dwellings, lodging or rooming houses, hostels, dormitories, apartment houses and flats, private garages and work and living studios;(ii)"Educational Building" that is to say, any building used for school, college, library or day care purposes as principal use involving assembly for instruction, education or recreation, incidental to education;(iii)"Institutional Building" that is to say, any building ordinarily providing sleeping accommodation for occupants and service providers used principally for the purposes of medical or other treatment or care of persons suffering from physical or mental illness, disease or infirmity, care of infants, convalescents of aged persons, veterinary services and for penal or correctional detention in which the liberty of the inmates is restricted and shall include hospitals, clinics, mental hospitals, veterinary hospital, dispensaries, sanatoria, custodial institutions and penal institutions like jails, prisons, and reformatories;(iv)"Assembly Building" that is to say, any building where groups of people gather for amusement or recreation or for social, religious, patriotic, civil, travel, sports, and similar other purposes as the principal use and such shall include theatres, motion picture houses, drive - in - theatres, city halls, town halls, auditoria, exhibition halls, museums, scatting rings, restaurants, eating houses, bars, hotels, boarding houses, places of worship, dance halls, club, gymnasium, passengers stations and terminals of air, surface and other public transportation services, recreation piers and stadiums, amusement park;(v)"Business Building" that is to say, any building used principally for transaction of business for keeping of accounts and records or for similar purposes and shall include buildings or premises solely or principally used as an office or for office purposes;(vi)"IT/ITES Business Buildings" that is to say, any building used principally for transaction of Information Technology/ Information Technology Enabled Services Business;(vii)"Mercantile Building (retail)" that is to say, any building used principally as shops, store or market for display or sale of merchandise on retail basis, or for office storage or service facilities incidental thereto, and shall include establishments, wholly or partly engaged in retail trade, manufacturers retail outlets including related storage facilities, warehouses and establishments.(viii)"Mercantile Building (wholesale)" that is to say, any building used principally as shops, store or market for display or sale of merchandise on wholesale basis, or for office storage or service facilities incidental thereto, and shall include establishments, wholly or partly engaged in wholesale trade, manufacturers wholesale outlets including related storage facilities, warehouses and establishments engaged in truck transport (including truck transport booking agencies);(ix)"Industrial Buildings" that is to say, any building or structure used principally for fabrication, assembly and or processing of goods and materials of different kind and shall include laboratories power - plants, smoke houses, refineries, gas plants, mills, dairies, factories, and workshops;(x)"Storage Building" that is to say, any building used principally for the storage or sheltering of goods, wares and merchandise as in ware houses and shall include cold storage, freight depots, transit shades, store houses, public garages, hangers, silos, and barns;(xi)"Hazardous Building" that is to say, any industrial building or storage building used for the storage, handling, manufacture or processing of highly combustible or explosive materials or products which are liable to bum with extreme rapidity or which may produce poisonous and/or noxious fumes or explosives during storage, handling, manufacturing or processing or which involve highly corrosive, toxic, or noxious alkalis, acids or other liquids or chemicals or radioactive elements producing flames, fumes, explosion or mixtures of dust or any other matter which result in the deviation of matter in two fine particles subject to spontaneous ignition;
