In this Act, unless the context otherwise requires-
(1) building includes-
  (a) a house, out house, stable, cattle-shed, cattle house, latrine, godown, shed, hut, wall, roofed enclosure and any other such structure, whether wholly or partially constructed of masonry, bricks, mud, wood, metal or any other material whatsoever :
  (b) a structure on wheels or resting on the ground without foundation ; and
  (c) a tent, van and any other structure used for human habitation or use for keeping or storing any article or goods ;
(2) a person shall be deemed to -
  (i) erect a building if he constructs 3 building for the first time or re-constructs an existing building after demolishing it ;
  (ii) re-elect a building, if he-
    (a) makes any material alteration to or enlargement of a building, or
    (b) converts into a dwelling place any building not originally constructed for that purpose, or
    (c) converts into two or more dwelling places a building originally constructed as a single dwelling place, or
    (d) converts two or more dwelling places into a larger number of such places, or
    (e) converts into a factory, workshop or godown or into a stable, cattle shed or cattle-house any building originally constructed as a dwelling place, or
    (f) makes any alteration which is likely to affect prejudicially the stability or safety of a buildings or the condition of a building in respect of its drainage, sanitation of hygiene, or
    (g) makes any alteration to a building which increases or diminishes its height or the area covered by it or the cubic capacity thereof, or which reduces the cubic capacity of any room therein ;
(3) "exclusion area" in relation to a nuclear installation means such area, within 1.6 kilometres from any portion of the boundary of such nuclear installation, as may be specified by the State Government by notification in this behalf ;
(4) "nuclear installation" means the atomic power station at Narora, in the district of Bulandshahr and includes any other place notified by the State Government in this behalf wherein other facilities connected with research and development in nuclear energy in Narora are provided or any other atomic power station notified by the State Government in this behalf ;
(5) "nuclear installation area", in relation to a nuclear installation, means the exclusion area and the sterilized area in relation to such nuclear installation ;
(6) "nuclear installation local authority'', means the nuclear installation local authority constituted under section 3 ;
(7) "sterilized area", in relation to nuclear installation means such area within 4.8 kilometres from any portion of the boundary of such nuclear installation, as may be specified by the State Government by notification, but not including the exclusion area.