Cities and municipalities; Fair Zoning Act of 2025; single-family; diverse housing; report; Oklahoma Uniform Building Code Commission; Oklahoma Housing Finance Agency; effective date.

HB 1051, the "Fair Zoning Act of 2025," requires cities with over 20,000 residents to update zoning laws to allow multi-family housing (like apartments and duplexes) alongside single-family homes in all residential zones, ending exclusive single-family zoning. Cities must submit detailed 5-year reports to the Oklahoma Housing Finance Agency on zoning changes, new housing units, affordability efforts, and community partnerships. The bill prohibits height restrictions on multi-family buildings that meet state safety standards and historical preservation guidelines, while allowing citizens to sue noncompliant local governments. It takes effect November 1, 2025, aiming to increase housing diversity and accessibility in Oklahoma communities.