ADU Builder Index

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Citadel Development

2completed ADU permits
2total ADU permits
2021–2023active years on record
$862,910median est. project cost

Washington state license

License
CITADDI069PC
Status
license active
Type
CONSTRUCTION CONTRACTOR
Expires
2028-02-09
Registered in
WOODINVILLE, WA

As reported by WA L&I on 2026-08-30. Always re-verify at lni.wa.gov/verify.

Permit record

Every ADU-related permit in covered city records naming this contractor. Links go to each city's official permit portal.

PermitCityIssuedStatusEst. costAddressDescription
6692771-CN2023-06-13Completed$501,3485613 32ND AVE SWEstablish use and Construct new single-family residence with detached accessory dwelling unit (DADU) per plan.
6749279-CN2021-08-30Completed$862,9108308 25TH AVE NWEstablish use and Construct single-family residence with attached accessory dwelling unit [AADU] and detached accessory dwelling unit [DADU] per plan.

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