Section 22(2)(f) in The Kerala Panchayat Buildings Rules, 2011
(f)obtain a development certificate from the Secretary prior to any sale or transaction of the plot subdivision or building construction in developed or redeveloped plots as given in Appendix G or obtain an occupancy certificate from the secretary prior to any occupancy of the building or part thereof, after construction or reconstruction or addition or alteration of the building or part thereof, or change of occupancy of any building or part thereof as given in Appendix H.