Obtaining a Building Improvement Permit prior to adding a balcony or a gallery is mandatory.
The work below requires a Certificate of Authorisation for all cases:
Work subject to the approval of a Site Planning and Architectural Integration Plan
Work subject to approval of a standard from bylaw L-280 LAG regarding the construction of a fence around a pool or L-11807 regarding pools
Work regarding a building or part of a lot located in the flood plain
Work regrading a building covered by the Cultural Heritage Law or located in a zone protecting such buildings
More information in French.