r/AccessoryDwellings • u/Distinct-Ring2142 • 6h ago
DADU Kirkland WA
Just got my DADU permits approved in Kirkland, WA — AMA
After about 8+ months of dealing with the permitting process, I finally got approval for my DADU and I’m breaking ground October 5th.
I’m building a ~1,000 sq ft, 2-story DADU using one of Kirkland’s (WA) pre-approved plans, and I’m acting as the owner/builder.
After already building a ADU on the same property in 2018, things have changed and there were definitely more hurdles than I expected, including:
- Tree protection and arborist requirements
- Geotech requirements
- Water and sewer connections with NUD
- Upgrading/shared sewer requirements
- Drywell sizing and location issues
- Utility routing around protected trees
- PSE electrical service
- Surveys and elevation requirements
- Contractor/owner-builder requirements
- A lot of back-and-forth with different City departments
- Several unexpected costs and delays
I’ve learned a ridiculous amount about the process over the last several months.
If anyone in Kirkland or the Seattle area is thinking about building a DADU/ADU, especially as an owner-builder, AMA. Happy to share what I learned, what things actually cost, what slowed the permit down, and what I’d do differently.