Shed Permits in Washington: A Comprehensive Guide

cream hi side shed with red trim and side overhang built altering obtaining shed permits in Washington

Building a new shed can be an exciting project. You can get additional storage space, a garden shed, or even your own workshop. However, the excitement can turn sour when obtaining a shed permit for your project. Navigating local building codes, understanding zoning regulations, and dealing with various administrative hurdles can turn a straightforward project into somewhat of a challenge. 

We want to make getting the storage space you need simple and exciting. That’s why this guide breaks down everything you need to know about shed permits in Washington state. Here’s what we’ll cover in this article:

  • Answers to common questions about shed permits
  • Shed permit regulations for all counties and some cities in Washington state
  • Other information you may want to know about shed permits in Washington state

What Is A Shed Permit?

gray quaker shed with metal roofing and white trim with American flag flying up above it

A shed permit is an official document you need to get before you can build, install, or change a shed on your property in Washington State. It’s essentially a way for your local government to certify that the shed you plan to build follows their rules and regulations. This includes meeting local building codes, zoning regulations, and safety standards. In simple terms, a shed permit is like a building permit but focuses specifically on the requirements for sheds.

Do You Need A Permit To Build A Shed In WA?

blue lo side shed with white trim and blue metal roofing

You will need a permit to build a shed in Washington if the projected roof area is over 120 square feet, it is more than one story, it’s attached to a house or other building, or it is near an environmentally critical area (ECA). 

What Are The Rules For Sheds in Washington State?

wooden shed interior with mono sloped roof

Outlined below are a few factors that might influence whether you need a permit or the types of permits you’ll need to obtain before constructing your shed:

Size and Height

The exact size and height requirements will vary between counties and cities within the state of Washington. However, the general guideline is that sheds with a roof area of over 120 square feet that are higher than one story will typically require a permit. 

Location and Placement

Depending on where you reside in Washington State, the exact rules for the location and placement of your shed may differ. Typically, you must obtain a permit if you plan to attach the shed to your house or other building or if it is being placed near an ECA. 

Sheds must also be set back a certain distance from property lines, usually about 3 to 5 feet, although this will also vary depending on your local jurisdiction’s rules and regulations. For example, in Seattle, the setback requirement is 5 feet from the side and rear property lines, but this is often larger in more rural areas.

Intended Use

As the tiny home trend increases in popularity, many people want to convert their shed into a living space. In Washington, if you plan to reside in a shed as your permanent residence, it must be converted to meet residential building codes and requirements. It will likely require a typical building permit rather than a shed permit.

Electrical and Plumbing

A separate permit will be required if you plan to include any utilities such as plumbing, electrical, or mechanical setups. 

How Big Of A Shed Can I Build Without A Permit in Washington State?

metal sheds with black roof and small front porch with wooden flooring

The biggest sized shed you can build in Washington state without a permit is one with a roof square footage of 120 square feet, no taller than one story.

How Do I Get A Shed Permit in Washington?

brown a frame shed with shingle roofing and cupola beside two trees with red leaves
  1. Check Local Building and Zoning Codes

Before you get a shed permit in Washington, you’ll need to find out what your local jurisdiction requires to obtain a permit. That way, the plans for you shed that you submit with your application will be approved. Below is a list of resources for local jurisdictions across the state of Washington so you can find out the requirements for a shed in your area.

  1. Prepare Site Plan

Now that you have an understanding of the requirements for building a shed in your area, you can draft a site plan in accordance with your local regulations. Most localities require you to show where you’ll place the shed on your property, the shed’s measurements, distances to property lines and other structures, and any other easements. You may also need to include details about the materials you plan to use, the shed’s dimensions, and the type of foundation you plan to use. Prepare this before you start filling out the permit application to easily include it when the time comes. 

  1. Complete the Permit Application

Now that you know if your shed requires a permit and you have your site plan together, you can begin filling out the permit application (if your shed requires one). You can typically fill one out on your local building or zoning department’s website, but you may need to visit them in person to get the application. 

You’ll also need to attach the shed plans, proof of ownership, or HOA approval if required. Once all this is done, be sure to pay the associated permit fees.

  1. Submit Your Application

Now that your application is complete, it’s time to submit it for approval. If the application is online, you can submit it there, but you may need to visit your local building department to deliver the application in person if required. 

Once submitted, it will take a few days or weeks for your local government official to review the document, ensure that your shed meets all the requirements, and give you their stamp of approval.

  1. Schedule Inspections

Some municipalities will require inspections to ensure that the construction of your shed follows the approved site plans and still adheres to regulations and safety standards. A final inspection may also be required to ensure the shed has been completed per the approved plans. 

  1. Obtain Your Permit and Begin Construction

After receiving approval on your permit application, you can begin construction.

  1. Post-Construction Requirements

Once you have passed the final inspection, you may get a certificate of completion to display, indicating that your shed has met all the necessary requirements.

Local Shed Permit Resources

light gray and dark gray trimmed mono slope shed with transom windows

Shed Permits in Washington Requirements By County

Below is a list of resources to help you determine the shed permit requirements in your county. These include the proper government body to get in contact with, building and zoning regulations, and an online application and fee schedule if they are available online. 

Adams CountyAdams County Building Permit Guidelines
Adams County Building and Planning Department
Asotin CountyAsotin County Permit Info & Forms
Asotin County Building & Planning Department
Benton CountyBenton County Building Division
Benton County Permits & Forms
Chelan CountyChelan County Community Development
Clallam CountyClallam County Building Division
Clallam County Building Permits
Clark CountyClark County Building FAQs
Clark County Residential Permits
Columbia CountyColumbia County Residential Building Permits
Columbia County Planning & Building Department
Cowlitz CountyCowlitz County: “What kind of work requires a building permit?”
Cowlitz County Building & Planning Department
Douglas CountyDouglas County Building Construction Information
Douglas County Land Services
Ferry CountyFerry County Building Department
Franklin CountyFranklin County Planning & Building Department
Franklin County Permit Application Forms
Franklin County Detached Accessory Structures
Garfield CountyGarfield County Residential Building Departments
Garfield County Building & Planning Department
Grant CountyGrant County Permits
Grant County Building Department
Grays Harbor CountyGrays Harbor County Accessory Structures
Grays Harbor County Planning & Building Division
Grays Harbor County Permits
Island CountyIsland County Building Permits
Island County Building Department
Island County Permits Required
Jefferson CountyJefferson County Building PermitsJ
efferson County Building Permit Forms
King CountyKing County “Do you need a permit?”
King County Residential Accessory Building Permits
King County Permits and Building Department
Kitsap CountyKitsap County “Do I Need A Building Permit?”
Kitsap County Permit Services & Resources
Kittitas CountyKittitas County “When is a permit required?”
Kittitas County Community Development Services
Kittitas County Building Permit Packet
Klickitat CountyKlickitat County Building Department
Klickitat County Building Permits & Inspections
Lewis CountyLewis County Building Permit
Lewis County Community Development
Lincoln CountyLincoln County Building Division
Lincoln County Building Code
Mason CountyMason County Storage Sheds
Mason County Permit Guide
Mason County Building Department
Okanogan CountyOkanogan County Building Permit Info
Okanogan County Building Department
Pacific CountyPacific County Building Department
Pacific County Building Permit Application
Pend Oreille CountyPend Oreille County Building Permitting Info
Pierce CountyPierce County FAQs
Pierce County Residential
San Juan CountySan Juan County Structures Exempt From Building Permits
San Juan County Building Permit Forms & Info
Skagit CountySkagit County Planning & Development Building permit
Skagit County Planning & Development Services
Skamania CountySkamania County FAQs
Skamania County Building Division
Snohomish CountySnohomish County Common Building Permit Exemptions
Snohomish County Residential Garages & Storage Buildings
Snohomish County Residential Building Permits
Spokane CountySpokane County Residential Building Permits
Spokane County Building & Planning Department
Stevens CountyStevens County Building Applications & Forms
Stevens County Building Division
Stevens County Online Permit Center
Thurston CountyThurston County “Do you need a permit?”
Thurston County Permitting Home
Thurston County Community Planning & Economic Development Department
Wahkiakum CountyWahkiakum County Land Use, Building Permits & Shoreline Permits
Wahkiakum County “Do I Need A Permit?”
Wahkiakum County Building & Planning Department
Walla Walla CountyWalla Walla County Building Permit Applications and Handouts
Walla Walla County Community Development Department
Whatcom CountyWhatcom County Accessory Structures
Whatcom County Planning & Development
Whatcom County Building Services & Permit Center
Whitman CountyWhitman County Building & Development Division
Whitman County Building Permit Application
Yakima CountyYakima County FAQs
Yakima County Building Permit Application
Yakima County Building Division

Shed Permits in Washington State By City

BellevueBellevue Accessory Structures
Bellevue Building Permit Requirements
EverettEverett Permit Services
Everett Regulations For Accessory Buildings
KentKent “Do I Need A Permit?”
Kent Permit Center
OthelloOthello Building & Planning Department
ProsserProsser Building Department
Prosser Building Permits
RentonRenton Shed/Garage Handout
SeattleSeattle Sheds
SpokaneSpokane Accessory Structures
Spokane ValleySpokane Valley Residential Building Permits
TacomaTacoma Residential Garages and Sheds
YakimaYakima Permits

A permit is only required in Bellevue, Washington if the square footage of your shed is 200 square feet or more. Your shed must also be at least 10 feet from street right of way, access easement, or private road. It must be setback 5 feet from side and rear property lines and can not be taller than 15 feet as well.

A permit is not required in Everett, Washington, if your shed’s floor area is less than 200 square feet.

One-story sheds do not need a permit if the floor doesn’t exceed 120 square feet for non-residential use and 200 square feet for residential use.

Yes, a shed permit is needed in Othello, Washington, if the shed you plan to build or alter has a floor area greater than 200 square feet.

A permit is not required in Prosser, Washington, if the shed’s floor area is less than 200 square feet and they meet all Benton County setback requirements.

You will need a shed permit in Renton, Washington, if the floor area is larger than 200 square feet.

You don’t need a permit in Seattle, Washington, if your shed meets the following requirements: its total roof area is 120 square feet or less, it’s a single-story building, it sits on a concrete slab, pier blocks, or soil, it’s not attached to a house or other building, it’s not near an ECA, and it’s only used for storage, gardening, etc.

Residential accessory structures such as sheds are exempt from permit requirements in Spokane, Washington, if they are only a single-story and are less than 200 square feet.

Yes! A permit is typically required for sheds larger than 200 square feet.

You will need a permit in Tacoma, Washington if the structure is larger than 200 square feet.

Sheds under 200 square feet do not require a building permit in Yakima, Washington.

How Long Does It Take To Get Shed Permits in Washington State?

tan monitor barn shed with brown trim two windows and a second story that requires shed permits in Washington

A straightforward shed permit can take anywhere from a couple of days to weeks, while a more complex project that requires zoning variances or environmental reviews can take longer. The time it takes to get shed permits in Washington will vary depending on your local jurisdiction. Some may have resources at their disposal that allow them to move the review process along quicker than others.

What Is The Penalty For Not Getting A Shed Permit in Washington?

light brown shed with darker brown trim and dark brown metal roofing with dormer

The exact penalty you may face for not getting a shed permit in Washington will vary depending on location. However, here are some common penalties you may face for failing to comply with building codes or zoning regulations:

  • Fines and Penalties: If you fail to obtain a shed permit in Washington when required, you may face fines that range from a couple hundred to a few thousand dollars. Some jurisdictions may even send daily fines until the shed is permitted.
  • Stop-Work Order: The construction of your shed may be ordered to be stopped until you obtain the required permits.
  • Order to Remove or Modify: You may also have to remove or modify your shed to meet local building codes. This can lead to added costs for your project.
  • Impact on Property Value and Sale: If your shed is unpermitted, you may have trouble closing the sale of your home until you can prove that it is permitted and up to code.
  • Liability & Insurance Issues: If your shed is unpermitted, and something were to occur, your insurance claim may be denied, and you will be liable for any damage.
  • Legal Actions: In extreme cases, your local government may take legal action to enforce compliance, resulting in legal fees and court costs.

Other FAQS

black economy shed with white trim and gray metal roofing

Do I Need A Permit To Run Electricity To My Shed in Washington State?

Yes, the state of Washington requires you to get a separate permit to run electricity to your shed.

Can I Live in A Shed in Washington?

You can live in a shed so long as you comply with their residential building code and convert your shed into what is considered a habitable dwelling. It’s essential to check with your local jurisdiction to see what they allow.

Interested in living in your shed? Check out our prestige sheds or read our blog on 15 unique finished shed house interior ideas.

How Long Does A Building Permit Last in Washington?

Typically, a building permit lasts for 6 months, and within this time, you must begin construction on your shed. If you don’t make any progress on the shed or need to halt construction for 6 months or more, you will need to request an extension. If you do not request an extension and no progress is made on the shed for 6 months or more, your permit will expire.

Building A shed In Washington?

build your shed in 3D according to shed permits in washington regulations

The Shed Center is here to assist you at every stage of your shed project. Whether you need help with shed permitting questions, designing or building a shed, we can help you get the job done. Contact us with any questions, begin building your shed in 3D, or explore our shed lines to get started.