ADDITION OR EXTENSION TO EXTENSION TO
EXISTING BUILDINGS

(100) Provisions to apply as modified for additions proposed. 

In the case of any addition or extension proposed to a building existing at the commencement of these rules, the provisions in these rules elsewhere shall apply, subject to modifications in this chapter: 

Provided that for the purpose of calculating permissible floor area ratio the whole building including the existing and the proposed portion shall be taken into account. 

(101) Addition or extension to be permitted on existing side set back in contain cases 

In the case of building for residential or commercial uses existing at the time of commencement of these rules, having one or two floors addition or extension shall be
permitted upto three floors and staircase room inclusive of the existing floors on the same existing side set backs: 

Provided that the existing set back shall be average 90 cms, on the side and average 60 cms. On the other side: 

Provides further that if the existing single storied building has average 60cms. Each on
both sides addition or extension shall be permitted to one more floor and staircase cabin  provided further that basement or cellar floor shall be taken into account for
calculating the number of floors: 

Provided also that the front and rear set backs shall be as required under these rules. 

(102) Period of permit and renewal: - 

1.The permit shall be valid for one year from the date of issue and may be renewed for
further one year on submission of application in white paper, typed or written in ink,
affixed with necessary court fee stamp. 

2.The application for renewal shall be submitted within the valid period of the permit
and the renewal fee shall be fifty per cent of the permit fee.