Do I Need a Permit to Build a Fence in Seattle, WA?

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Fees

Estimated city fees

Baseline for a simple permitted deck: $150–$350 estimated city fees for a permitted fence (valuation-based; standard fences ≤ 8 ft with no masonry above 6 ft typically no building permit fee)

Fee	Amount	Notes
STFI construction permit (valuation-based)	$150–$350	Fees are calculated based on project valuation. SDCI base hourly rate is $292/hour (2026). Construction permit fees increased 18% year-over-year in 2026. Use the SDCI Fee Estimator for exact amounts.
Inspection fee	Included	Field inspections are included under the STFI construction permit.
SDOT Long Term Use permit (if in right-of-way)	Varies (annually renewable)	Required only if fence elements extend into the public right-of-way. Contact SDOT for current fee.

Documents

Required documents

Completed STFI construction permit application through Seattle Services Portal.
Site plan drawn to scale showing property lines, existing structures, and proposed fence location.
Section and detail drawings showing fence height and construction method.
No professional architectural or engineering stamp required for standard fences — homeowners may prepare drawings themselves.
Landmarks Preservation Board approval if the property is in a designated historic or landmark district.
HOA approval documentation if required by subdivision CC&Rs.
Homeowner authorization if a contractor files on the owner's behalf.

Timeline

Typical timing

Plan review: 2–5 business days
Total cycle: 2–4 weeks from application to final inspection

STFI permits are typically reviewed in a few business days. Express Lane processing available for complete applications (2–3 weeks). Permits are valid for 18 months from issuance.

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Process

How the permit process works

Determine whether your fence requires a permit Check the height, material, and location of your planned fence. Standard fences 8 feet or under with no masonry above 6 feet generally do not need a building permit in Seattle, unless the property is in an ECA or flood zone. Front yard solid fences are limited to 4 feet.
Research your property Use the Seattle Services Portal to verify your zoning, ECA status, and permit history. Check for historic/landmark district designations and right-of-way boundaries.
Prepare your site plan and drawings Prepare a scaled site plan showing lot lines, the proposed fence line, and dimensions. Include section drawings showing height and construction details. Professional stamps are not required for standard fences.
Submit through Seattle Services Portal Submit a pre-application through services.seattle.gov. SDCI reviews for STFI eligibility and land use code compliance. Pay fees within 48 hours of intake.
Receive permit and begin construction Once approved, receive the permit electronically. Print the permit and approved plans, and post them on-site. Do not start work before the permit is issued.
Schedule required inspections Schedule field inspections through the Seattle Services Portal. A building inspector reviews code compliance on-site. Keep approved plans available during inspections.
Close out the permit After the final inspection passes, the permit is closed. Retain documentation for your records. Permits are valid for 18 months from issuance — apply for renewal if work is not complete.

Code basis

What Austin reviews against

Seattle Municipal Code (SMC) 23.44.014 (Yard regulations — Neighborhood Residential zones); Seattle Residential Code Chapter 1, Section R105.2 (Permit exemptions); Seattle Land Use Code Title 23 with local amendments.

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If you skip the permit

What can go wrong

Seattle Department of Construction and Inspections (SDCI) can issue a stop-work order if unpermitted fence construction is discovered.
Fines and penalties can accumulate until the violation is resolved through a permit after-the-fact or by removing the fence.
An after-the-fact permit may require removal of completed fence sections for inspection.
Insurance claims related to property damage involving an unpermitted fence may be complicated or denied.
Unpermitted fences in ECAs or historic districts can result in additional enforcement actions and mandatory removal.
Fences in the public right-of-way without an SDOT permit can be ordered removed by the city.

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FAQ

Common Austin deck permit questions

Do I need a permit to build a 6-foot privacy fence in my Seattle backyard?

No. Standard fences 8 feet or under with no masonry elements above 6 feet do not require a building permit in Seattle, as long as the property is not in an Environmentally Critical Area or flood zone. You must still comply with Seattle Land Use Code height and placement standards.

What is the maximum fence height allowed in my front yard in Seattle?

In most residential zones, solid/opaque fences in the front yard are limited to 4 feet. Fences above 4 feet in the front yard must be predominantly open (lattice, picket, etc.). Side and rear yard fences can be up to 6 feet solid, or up to 8 feet if portions above 6 feet are predominantly open.

Can I build a fence taller than 6 feet in Seattle?

Yes, but portions above 6 feet must be predominantly open (lattice, open slats, etc.) in required yards. The absolute maximum in any required yard is 8 feet. Concrete or masonry elements are capped at 6 feet even when the fence as a whole reaches 8 feet. Fences over 8 feet require a permit.

How much does a Seattle fence permit cost?

Fence permit fees are valuation-based. A practical estimate for a simple residential STFI permit is $150–$350. SDCI fees increased 18% in 2026. Use the SDCI Fee Estimator at seattle.gov/sdci for exact amounts. Standard fences under 8 feet typically need no permit and incur no fee.

How long does it take to get a fence permit in Seattle?

STFI (Subject to Field Inspection) permits are typically reviewed in a few business days. Complete applications may qualify for Express Lane processing in 2–3 weeks. Permits are valid for 18 months from issuance.

What about fences on retaining walls in Seattle?

If a fence is placed above a retaining wall that raises grade, the combined height of wall plus fence is limited to 9.5 feet. If the retaining wall lowers grade, normal fence height limits apply independently. Retaining walls with fences may require additional review.

Does my HOA have authority over my fence even if the city doesn't require a permit?

Yes. HOA covenants, conditions, and restrictions (CC&Rs) are private agreements that often impose stricter rules on fence height, material, color, and style than Seattle city code. HOA violations can result in fines and mandatory removal even if the fence is code-compliant. Always check your CC&Rs before building.

I live in a Seattle historic district — what extra steps do I need?

Properties in Seattle's historic or landmark districts (Pioneer Square, International District, Harvard-Belmont, Pike-Pine Conservation Overlay) may require approval from the Landmarks Preservation Board before building a fence. Contact SDCI at (206) 684-8600 to confirm requirements for your specific property.

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Disclaimer: This page is informational, not legal advice. Permit rules, fees, and processes change. Verify your project with Austin Development Services before building.