The building permit is valid for six months, and expires automatically unless construction has commenced within that period or the permit is extended by the local jurisdiction under local codes (which is generally a discretionary decision and, in some jurisdictions, is not authorized at all under local law).

How long is a building permit good for in Ontario?

Building permits are valid for the duration of construction provided construction is on-going. Where work has not started or has stopped, the permit is valid for up to 6 months (as per the Ontario Building Code). However, a Building Inspector may decide to provide you with an extension to your permit.

How long is a building permit good for in BC?

A building permit expires at two years from the date of issue. In some cases the building inspector can extend the period of time up to a maximum of one year.