A permit extension is a request to extend the time frame that is allowed for completing the work that is covered by a building permit. Building permits are typically issued for a specific period of time, and if the work is not completed within that time, the permit may expire. In some cases, a permit extension may be granted if the contractor or developer can demonstrate that there were unforeseen circumstances that prevented the work from being completed on time, such as weather delays or material shortages. In order to obtain a permit extension, the contractor or developer will typically need to submit a request to the relevant government agency, along with any supporting documentation or information that is required. Permit extensions may be granted for a fee, and the length of the extension will depend on the circumstances of the case and the policies of the issuing agency.