What Are Permits And Why Are
They So Important?
They So Important?
Permits are official approvals that give you the legal right to build.
They ensure your project follows building codes, zoning laws, and safety standards.
Simply put: no permit — no construction.
It’s your license to build legally.
Why Are Permits Necessary?
- To ensure the project is safe (for residents, neighbors, fire safety, etc.)
- To guarantee compliance with local laws (building codes, setback rules, zoning)
- To avoid fines, work stoppages, and issues when selling the property
- To maintain insurance coverage (illegal work may void your insurance)
- Having permitted construction officially increases your property's value.
What Types of Permits Are There?
Depending on the project, you may need several types of permits:
Often, one project requires several permits at once.
How We Help With Permits
We make the permitting process simple and predictable for our clients:
We make the permitting process simple and predictable for our clients:
- Advise on required permits
- Prepare and submit all documents
- Coordinate with architects/engineers
- Handle city communication and corrections
- Schedule inspections during construction
- Offer expedited options if needed
Key Stages of the Permit Process
Site and zoning review
(check what can legally be built on your property)
Preparation of architectural plans and engineering documents
(must meet city standards)
Compiling a complete permit package
(application forms, plans, supporting documents)
Submitting the permit application
(via city portal or in-person)
Plan review process
(city checks compliance; may issue comments)
Responding to comments
(make corrections and resubmit if needed)
Permit issuance
(you are authorized to start construction)
Mid-project inspections
(foundation, framing, electrical, plumbing inspections)
Final inspection and permit closure
(confirming project completion meets all standards)
FAQs about ADU/DADU permits in Seattle
Do I need a permit to build a DADU/ADU in Seattle?
Yes, in Seattle, most projects — including DADUs/ADUs — require a permit.
The city strictly enforces building codes, zoning, and planning rules.
The city strictly enforces building codes, zoning, and planning rules.
What documents are required to apply for a permit in Seattle?
To apply for a permit in Seattle, you’ll need:
– Architectural plans
– Site plan with setbacks
– Structural and energy code documents
– Application via Seattle Services Portal
Sometimes, extra reports (like ECAs) may be required.
Our team handles the full process — from documents to submission.
– Architectural plans
– Site plan with setbacks
– Structural and energy code documents
– Application via Seattle Services Portal
Sometimes, extra reports (like ECAs) may be required.
Our team handles the full process — from documents to submission.
How long does it take to get a permit in Seattle?
In Seattle, standard permit review can take up to 6 months.
We help speed up the process — down to 1–2 months in many cases.
We help speed up the process — down to 1–2 months in many cases.
Want to know which permits your project needs?
Leave a request — we’ll evaluate your lot and guide you through the process.
Leave a request — we’ll evaluate your lot and guide you through the process.
Get a free consultation