Land Use / Master Use Permit - Environmentally Critical Areas (ECA)
What Is It?
Environmentally critical areas (ECAs) include wetlands, flood-prone areas, abandoned landfills, fish and wildlife habitat conservation areas, and steep slopes and other geologic hazard areas.
In addition to our zoning regulations, properties within ECAs are regulated by Seattle Municipal Code (SMC) section 25.09, which includes specific development standards for each type of ECA.
If you cannot follow the rules for the type of ECA in which your project is located, and your project is not eligible for an exemption or waiver, then you may be able to apply for one of the following types of permits. The following ECA master use permits have a public comment and appeal process.
ECA Variance: This master use permit may allow you to:
- Reduce your yards or setbacks to maintain the required riparian management area, steep slope, or wetland buffer
- Develop in a steep slope or steep slope buffer
If your project includes impacts to steep slope areas or other ECAs in the Shoreline District, you may need a shoreline variance.
ECA Administrative Conditional Use: This type of master use permit may allow you to modify some ECA and Land Use Code standards when:
- You plat parcels of land
- Your project has more than one dwelling unit
ECA Exception: With this type of master use permit, you may be able to modify ECA standards if they prevent any reasonable use of your property. To qualify for an ECA exception, you must demonstrate that your property could not be developed under all the other code options, including a variance or administrative conditional use.
How Much Does It Cost?
We charge an hourly review fee based on our Fee Subtitle. You need to pay a minimum fee when you submit your land use application. After we accept your application, we will send you a monthly invoice for all review time completed in that billing cycle. If you do not pay your invoice, we will stop reviewing your project. All fees are subject to an additional technology fee. See our Fee Subtitle for details.
How Long Does It Take?
Any master use permit for work in an ECA takes several months for our review and a decision. Exactly how long it takes us to complete our review of your proposal depends on several factors, including the:
- Complexity of your proposal
- Whether environmental review is required
- Quality of your plans and project documentation
- Timely response to correction letters and requests for further information
- Public interest
- Tip 201, Master Use Permit (MUP) Overview
Steps to Get Your Permit
Find your property information. Research your site to help you plan your project.
- Use our GIS Map to find zoning and environmentally critical areas information
- Check the Seattle Services Portal for recent permits or violations on your property
- Visit the Microfilm Library for older permit information not available on the web
- Use the King County Department of Assessments address search to get your assessor's parcel number (APN)
- Tip 233, Sources for Property Information
Determine restrictions to your project. Research the Seattle Municipal Code (SMC) to determine standards that will apply to your proposal.
- Land Use Code, SMC 23
- ECA Ordinance, SMC 25.09
- State Environmental Policy Act, SMC 25.05
- Tree Protection Ordinance, SMC 25.11
- Tip 201, Master Use Permit (MUP) Overview
- Tip 208, When Environmental Review is Required in Seattle
- Tip 242, Tree Protection Regulations in Seattle
- Tip 328, Environmentally Critical Areas Exceptions
- Tip 329, Environmentally Critical Areas Administrative Conditional Use Permit—Application Instructions and Submittal Requirements
- Tip 330, Environmentally Critical Areas—Yard & Setback, Steep Slope and Wetland Buffer Variances
Attend a coaching session. We offer virtual paid coaching and pre-submittal conferences for Land Use Code and project assistance through our Applicant Services Center.
Start your application. Complete the Building & Land Use Pre-Application online using the Seattle Services Portal. You will need to answer questions about your proposal and upload a site plan. You'll receive an email once we have added the pre-application site visit (PASV) fees to your project. (Most projects require a PASV.) After you have paid the fee, we will perform the site visit. Your preliminary application information will be reviewed by other departments for comment.
- Tip 103, Site Plan Requirements
- Tip 103A, Site Plan Guidelines
- Tip 103B, Environmentally Critical Area Site Plan Requirements
- Land Use Application Fee Requirements
Review your preliminary application report. You will receive a preliminary application report that will include critical information about whether you need Design Review, SEPA, or street improvements. Our report will include information from the utilities about your specific site and proposal. Our report will also identify potential project stoppers.
Request a pre-submittal conference. We recommend pre-submittal conferences for very complex projects, including work in environmentally critical areas or shorelines. You must pay a minimum two hour pre-submittal conference fee before we schedule your appointment. We might charge additional hourly fees based on the number of City staff attending the conference, and the amount of follow-up time required.
Apply for exemptions. You may be eligible for exemptions from code or permitting requirements if your project is located in an environmentally critical area or near the shoreline. You need to apply for and resolve any exemption requests during the preliminary application process before you submit your permit application. Submit your exemption requests using the Seattle Services Portal.
- Tip 209A, Shoreline Substantial Development Exemptions
- Tip 250, Best Management Practices in Seattle's Shoreline District
- Tip 327A, Environmentally Critical Areas Exemptions, Relief from Prohibition on Steep Slope Development, and Modifications to Submittal Requirements
- Tip 327B, Environmentally Critical Areas - Small Project Waivers
Coordinate with other agencies. You may need permits or approvals from other agencies. These are the most common agencies you may need to work with for your permit type:
- City Light
- Seattle Public Utilities
- Seattle Department of Transportation
- Department of Neighborhoods
- Seattle Business Licensing
- Seattle Labor Standards – Hiring Independent Contractors
- U.S. Fish & Wildlife Service
- SDOT CAM 2200, Street Improvement Permitting (SIP) Process
- SDOT CAM 2201, 90% Complete Street Improvement Plan (SIP) Requirements
- SDOT CAM 2203, Dedication of Right of Way or Easement
- SDOT CAM 2209, Permitting Requirements for Street Improvements
- SDOT CAM 2211, SDOT Street Improvement Permitting (SIP) Design Guidance
- SDOT CAM 2212, Base Map and Survey Requirements for Street Improvement Plans (SIP)
- SDOT CAM 2213, 60% Complete Street Improvement Plan (SIP) Approval Process
- SDOT CAM 2214, 90% Street Improvement Plan (SIP) Intake Appointment and 90% Complete SIP Acceptance Processes
- SDOT CAM 2216, SDOT Street Improvement Permitting (SIP) Pre-Construction Process
Prepare your plans and technical documents. Plans should be to scale. You may need to upload technical documents including a survey, geotechnical and wetland reports, and other types of reports. Our Tips and code standards provide additional detail on the type of plans and reports we require to review your proposal.
- Application Form for Environmentally Critical Areas Variances
- Construction & Land Use Permit Checklist - Environmentally Critical Areas
- Construction & Land Use Permit Standards - Environmentally Critical Areas
- Environmental (SEPA) Checklist
- Environmentally Critical Areas Administrative Conditional Use Permit Application
- Environmentally Critical Areas Exception Application
- Statement of Financial Responsibility / Agent Authorization Form (if needed, see Director’s Rule 5-2003)
- Tip 103B, ECA Site Plan Requirements
- Tip 106, General Standards for Plans and Drawings
- Tip 201, Master Use Permit (MUP) Overview
- Tip 208, When Environmental Review is Required in Seattle
Schedule an intake appointment. Schedule an intake appointment using the Seattle Services Portal. You must upload all application documents by 7:00 a.m. on the day of your appointment. You do not need to be onsite during your intake appointment. However, you do need to be available for questions. We may call or email you on your appointment day for more information.
- How to Schedule an Inspection or Appointment
- Frequently Asked Questions About SDCI Review Status and Target Due Dates
- Seattle Services Portal Help Center
Pay fees. You must pay a minimum fee for your review, any accrued land use hourly fees, and intake and notice fees at intake. You will receive an email once we have added fees to your project. You must pay your fees using your portal before we will post any public notice or conduct any reviews. We will invoice you monthly for additional fees during the review process. We will stop reviewing your project if you do not pay your monthly invoice.
Wait for public notice. We will issue a public notice for your project as required by SMC 23.76.012. If required, you are responsible for building and installing a large environmental public notice sign. (This sign must remain in place until the end of the appeal period or the Hearing Examiner decision, if applicable.) Once you've installed the sign, let us know by submitting an Environmental Sign Installation Notification using the Seattle Services Portal so that we will begin reviewing your proposal.
We'll consider all public comments we receive during our review.
Make corrections and resubmit your plans. Once all of our reviews are done, you will receive an email telling you that corrected or additional documents can be uploaded into your portal. Your project may require multiple correction rounds before our reviews are complete.
- How to Respond to Review Comments
- Video: How to Respond to Corrections
- Resolve a Permit Disagreement
Pay outstanding fees. Once our review is complete, you will get an email for any outstanding fees. You must pay these fees in your portal before we publish our decision.
Read our decision. We will send a notice of our decision to you and everybody that submitted a public comment on your project. We will also publish our decision on your project in our Seattle Services Portal. Our decision will include any required conditions of approval, some that you must meet before we issue your permit.
Submit an appeal. If you or a member of the public disagree with our decision, you or they may file an appeal with the Seattle Hearing Examiner within 14 days from when we publish our decision.
Note the expiration date. The expiration date of your permit is based on the date of the end of the appeal or the City Hearing Examiner decision. Your permit may expire, and therefore your application may expire, without having a permit issued.
Pay final fees. We will notify you if you need to pay any final fees before we issue your permit.
Print your permit. We will notify you when we have issued your permit and the documents are available in your portal.
You may apply for a construction permit at any time once you submit a land use application. However, the project can change and evolve through the land use application review process. Corrections required by our decision may require building plan changes that can result in costly design changes.