ADU Statistics

Plain-language data on the ADU permitting landscape — what’s legal where, what it costs, how long it takes, and how the rules have changed.

Legal grid

Where ADUs are allowed, at a glance. Matrix of jurisdictions, unit types, and the rules that govern them.

Typical permit fees, construction costs, and soft costs across markets. What homeowners actually pay.

End-to-end project timelines from idea to certificate of occupancy, broken down by step.

Chronology of ADU-law changes at state and local levels, annotated with their market effects.

ADU Pass

Planning, simplified.

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