Due to recent interim regulations implementing state legislation (effective July 2025) and pending changes to the Design Review program and the local codes implementing State Environmental Policy Act (SEPA) requirements, SDCI's Tips, Director's Rules, and other guidance documents may not reflect the most current regulations or requirements. To ensure accuracy and applicability to specific code questions or permit applications, please contact us through our Send Us a Question website.

Tips

Summary: This Tip is designed to help you through the permit process to construct a new single-family residence, two-family dwelling, or a combination of both, including new attached and detached accessory dwelling units. This Tip also covers permits for adding accessory dwelling units and large-scale alterations and/or additions to an existing dwelling where the scope of work is too large or complicated to qualify for a Subject-to-Field-Inspection Permit (STFI).

Date Revised: 02/24/2025

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