Section 142(1)(b) in Kolkata Municipal Corporation Building Rules, 2009
(b)Height: Normally the height of the re-erected building shall not be allowed to be more than 15.5 m unless the applicant is otherwise so entitled. However, this restriction on height may be relaxed as per the Act provided the proposal for re-erection complies with fire laws and provided further that additional car parking space as may be recommended by Municipal Building Committee is made available,