Why This Site Exists
Navigating Seattle's building permit process is genuinely confusing. The SDCI website is comprehensive but dense, permit fee schedules are buried in PDFs, and the difference between an STFI permit and a full plan review isn't explained anywhere in plain English.
Seattle Building Permits was built to change that. Every guide on this site is written for homeowners — not contractors, not lawyers. We translate SDCI requirements into clear, actionable information so you know what to expect before you start your project.
What We Cover
We focus on the most common residential permit scenarios in Seattle and the surrounding metro: bathroom remodels, kitchen remodels, decks, ADUs, and home additions. Each guide covers what triggers a permit, what it costs, and how long the process takes.
How We Make Money
This site earns revenue through affiliate links. If you click a link to a product or service and make a purchase, we may earn a small commission at no extra cost to you. See our Affiliate Policy for full details.
Accuracy & Updates
Permit requirements and fee schedules change. All guides are reviewed against current SDCI data and updated when requirements change. Always confirm current requirements directly with SDCI before starting your project.
Get in Touch
Questions, corrections, or feedback? Contact us here →