Detroit adopts the 2021 International Building Code with Michigan amendments. The City of Detroit Building, Safety Engineering and Environmental Department (BSEED) manages permits with typical timelines of 3-10 weeks. The city has a population of approximately 639,111 and covers 139 square miles. Detroit is in Seismic Design Category A with standard wind load considerations. The city is undergoing significant revitalization with incentives for redevelopment and historic preservation. Notable requirements include adaptive reuse standards, environmental site assessment, and heritage preservation. Permit fees average 0.5-0.9% of construction value. The city offers expedited processing for revitalization projects and has established standards supporting the city's comeback.