Project-specific official finding
Seattle shed or accessory structure permit path
Seattle publishes a construction-permit exemption for qualifying small one-story accessory structures under 120 square feet. Location, utilities, environmentally critical areas and use still require confirmation.
- Seattle publishes a construction-permit exemption for qualifying small one-story accessory structures under 120 square feet.Supporting evidence set · reviewed August 9, 2026Seattle house additions and remodelsfloor area, height, location, utilities and intended useSeattle do-you-need-a-permit guidanceApplication, review or inspection workflow for the cited residential scope
- Location, utilities, environmentally critical areas and use still require confirmation.Supporting evidence set · reviewed August 9, 2026Seattle house additions and remodelsfloor area, height, location, utilities and intended useSeattle do-you-need-a-permit guidanceApplication, review or inspection workflow for the cited residential scope
Application readiness
Project-specific application handoff
This separates confirmed filing facts from official starting routes and missing details. A mapped link is not presented as a verified fee, attachment list or parcel determination.
Still requires confirmation: application page, fee calculation, required documents, final closeout steps, parcel jurisdiction.
Where to start
This is an official city application hub; the exact record type still needs confirmation.
Open official Seattle Services Portal city application hub — select and confirm shed, accessory-structure and zoning scopeWho may file
Seattle's application identifies the owner, applicant, design professional and contractor; regulated trade work must use the required Washington credentials.
How to verify cost
Use the official fee route after the record type and full scope are confirmed; no project total is asserted here.
Open official seattle fee routeSubmission materials
The direct evidence supports this preparation step, but not a complete attachment inventory: Give Seattle Department of Construction and Inspections the site plan, dimensions, height, setbacks, construction and utility scope and confirm the exact project scope and record before work begins.
Hold points and finals
- No building inspection for a qualifying exemption
- Building or trade finals when permitted
Final record proof
Use the official record and inspection systems to verify every related permit and final status; a project-specific closeout sequence is not asserted.
Verify the issuing authority
Use the official property, zoning and permit-history tools linked here to confirm Seattle jurisdiction and site conditions.
Seattle property and permit historyLocal permit path
What the complete process can include
This separates required permits, who may apply, timing and inspections so a homeowner can plan from application through final approval.
Permits and approvals to check
- No construction permit only when the published size and use exemption applies
- Land-use and trade approvals when applicable
Who files
Seattle's application identifies the owner, applicant, design professional and contractor; regulated trade work must use the required Washington credentials.
What controls the schedule
Seattle Services Portal tracks intake and review; land use, shoreline, environmentally critical areas, trees and Seattle City Light can add separate steps.
How the record closes
- No building inspection for a qualifying exemption
- Building or trade finals when permitted
A practical permit path
A Seattle mailing address can be outside incorporated Seattle. Shoreline, environmentally critical area, landmark, tree and utility layers can add separate decisions.
Document the equipment, location, connections and any related structural, electrical, plumbing, fuel or fire work.
Ask Seattle Department of Construction and Inspections which permit type applies and whether the homeowner or a locally qualified contractor must apply.
Permitted sheds can require foundation, framing and final inspections plus trade inspections when utilities are added.
Conditions that change the answer
Floor area and height
Local building-permit exemptions usually have strict size and use limits.
Foundation and utilities
Permanent foundations, power, plumbing or conditioned space broaden the scope.
Placement
Setbacks, lot coverage, easements and flood zones still apply to exempt structures.
Inspection and close-out
Permitted sheds can require foundation, framing and final inspections plus trade inspections when utilities are added. Keep the approved documents, inspection results and final permit record with the property files.
Free pilot human review
Have this property and scope reviewed before you hire a contractor.
Human-reviewed official sources, forms, fees and next steps. HomeRulebook does not issue permits or replace the building department or other permitting agency.
Continue this project
Keep the Seattle context as you move forward.
Common questions
Seattle publishes a construction-permit exemption for qualifying small one-story accessory structures under 120 square feet. Location, utilities, environmentally critical areas and use still require confirmation. Verify the exact scope with Seattle Department of Construction and Inspections before work begins.
Seattle Department of Construction and Inspections is the primary source for properties in city limits. A Seattle mailing address can be outside incorporated Seattle. Shoreline, environmentally critical area, landmark, tree and utility layers can add separate decisions.
No building inspection for a qualifying exemption Building or trade finals when permitted
Seattle's application identifies the owner, applicant, design professional and contractor; regulated trade work must use the required Washington credentials.