San Antonio adopts the 2021 International Building Code with Texas amendments. The City of San Antonio Department of Development Services manages permits with typical timelines of 2-6 weeks. The city has a population of approximately 1.55 million and covers 412 square miles. San Antonio is in Seismic Design Category A with standard wind considerations. The city emphasizes cultural preservation, particularly regarding historic properties in the River Walk area. Notable requirements include historic district compliance, flood plain management, and energy code adherence. Permit fees average 0.4-0.6% of construction value. The city offers expedited processing for projects in designated enterprise zones.