Seattle Building Permit Services

Expert help navigating the City of Seattle's permit process. From ADUs to full remodels, we get your project approved.

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Understanding Seattle's Permit Process

Seattle building permits are administered by the Seattle Department of Construction and Inspections (SDCI). The process involves application submittal, plan review by city examiners, correction rounds, permit issuance, and inspections during construction.

Seattle's permitting system can be complex, particularly for projects in environmentally critical areas, historic districts, or those requiring Design Review. Many homeowners and contractors find that working with a permit specialist saves significant time and avoids costly resubmittals.

Not sure where to start? We offer a free consultation to assess your project requirements.

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Types of Seattle Building Permits We Handle

Residential Remodel Permits

Kitchen and bathroom remodels, interior wall removal, window and door changes, and structural modifications. Seattle requires permits for most remodel work that involves structural, electrical, plumbing, or mechanical changes. Typical timeline: 4-8 weeks for plan review.

ADU and DADU Permits

Seattle has been encouraging Accessory Dwelling Units (ADUs) and Detached Accessory Dwelling Units (DADUs) to increase housing density. These permits require site plans, building plans, and compliance with Seattle's ADU regulations including lot coverage, setbacks, and parking requirements. Typical timeline: 8-16 weeks.

New Construction Permits

New single-family homes, townhomes, and multifamily buildings. These projects involve the full SDCI review process including zoning review, structural review, energy code compliance, and potentially SEPA review. Timeline: 3-6 months or more depending on project scope.

Deck and Patio Permits

Decks over 30 inches above grade, attached pergolas, and covered patios typically require permits in Seattle. These are often reviewed under the simpler Subject-to-Field Inspection (STFI) process with faster turnaround. Typical timeline: 2-4 weeks.

Electrical, Plumbing, and Mechanical Permits

Stand-alone trade permits for electrical panel upgrades, new circuits, plumbing re-pipes, water heater replacements, HVAC installations, and more. These can often be obtained quickly, sometimes same-day for simple projects.

Commercial Tenant Improvements

Restaurant build-outs, office remodels, retail space changes, and change-of-use permits. Commercial permits in Seattle often require coordination with multiple departments including the Fire Marshal's office and Seattle Public Utilities.

Ready to get your Seattle permit started? Call for a free project assessment.

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Seattle Permit Timelines

Permit Type Typical Review Time Notes
Deck / Minor Work 2-4 weeks STFI process available for simple projects
Residential Remodel 4-8 weeks Longer if structural review required
ADU / DADU 8-16 weeks Includes zoning and building review
New Construction 3-6+ months May include Design Review
Commercial TI 4-12 weeks Depends on scope and change-of-use
Trade Permits (Elec/Plumb/Mech) 1-7 days Often same-day for simple work

Why Work With Fresh Permits in Seattle?

Seattle Neighborhoods We Serve

We handle permits for projects throughout the City of Seattle, including Capitol Hill, Ballard, Fremont, Wallingford, Queen Anne, West Seattle, Columbia City, Beacon Hill, Rainier Valley, University District, Green Lake, Ravenna, Northgate, Lake City, Georgetown, SoDo, and all other neighborhoods within Seattle city limits.

Get Your Seattle Building Permit Started Today

Free consultation. No obligation. We will tell you exactly what you need.

☎ (206) 460-1359