Section 27(6) in The Kerala Panchayat Buildings Rules, 2011
(6)Any room intended for human habitation and not abutting on either the front, rear or side open spaces, shall abut on an interior open space whose width shall not be less than 2.5 metres for buildings up to 10 metres height.Provided that in the case of buildings up to 7 metres height it shall be sufficient if such interior open space has a minimum width of 1.5 metres.
