September 15, 2026
Key Requirements for ADU Building Code Compliance
Permits & Requirements
Accessory dwelling units (ADUs) must meet specific requirements set by the adu building code to ensure safe and legal integration within residential properties. These codes establish standards for design, construction, and use to maintain neighborhood compatibility, structural soundness, and occupant safety. Requirements vary by jurisdiction and typically cover zoning restrictions, size limits, setbacks, and allowable uses. The regulatory framework balances expanding housing options with preserv