Nashville adopts the 2018 International Building Code with Tennessee amendments. The City of Nashville Metropolitan Planning Department manages permits with typical timelines of 3-8 weeks. The city has a population of approximately 715,884 and covers 504 square miles (metropolitan area). Nashville is in Seismic Design Category A with minimal seismic requirements. The city emphasizes historic preservation, particularly in downtown and historic neighborhoods. Notable requirements include stormwater management, accessibility standards, and community character preservation. Permit fees range from 0.4-0.7% of construction value. The city offers expedited review for downtown development projects and has established design guidelines emphasizing compatibility with historic character.