ADU Permits and Real Costs for 2025 Builds
In 2025, constructing a detached ADU typically ranges from $180,000 to $400,000, shaped by design choices, permitting hurdles, and site factors. Mastering zoning, building, and utility permits prevents costly setbacks. Through informed planning, cost reductions, and expert input, homeowners expand living areas, increase asset worth, and generate reliable rental revenue.
By Jenna Raines
6 min read

