San Francisco Home Renovation Permits: The Complete Guide

By SolidBay Construction SF | Updated 2026

San Francisco's building permit system is one of the most complex in the country. Understanding how it works can save you months of delays and thousands of dollars.

What Always Requires a Permit in SF

• Any structural changes
• Electrical panel upgrades or new circuits
• Plumbing changes or additions
• HVAC installation
• ADUs and home additions

DBI vs SF Planning Department

DBI enforces the California Building Code — structural, mechanical, electrical, and plumbing work.

SF Planning Department handles land use — zoning, neighborhood character, design review, and environmental review.

Permit Timelines in San Francisco

• Over-the-counter permit: 1–5 business days
• DBI plan check only: 4–10 weeks
• DBI + Planning review: 8–16 weeks

How to Speed Up SF Permits

Working with an experienced permit expeditor who has relationships with SF Planning and DBI staff can cut timelines by 30–50%. SolidBay's in-house expeditor manages this for every project.

What Doesn't Require a Permit

• Painting and wallpaper
• Replacing cabinet doors or hardware
• Installing new appliances (no gas/electrical changes)
• Flooring replacement (no structural changes)