Phoenix adopts the 2018 International Building Code with Arizona amendments. The City of Phoenix Planning and Development Services manages permits with typical timelines of 3-8 weeks. The city has a population of approximately 1.6 million and covers 517 square miles. Phoenix is in Seismic Design Category A with minimal seismic requirements but significant wind load considerations for dust storms. The city emphasizes water conservation, requiring Title 24 standards and water-efficient landscaping. Notable requirements include cool roof standards, sustainable building practices, and desert habitat protection. Permit fees range from 0.4-0.7% of construction value. The city offers expedited review for LEED-certified projects and has established sustainability standards for municipal buildings.