ADU Builder Index

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Cascade Const Design Build

2completed ADU permits
2total ADU permits
2007–2012active years on record
$45,000median est. project cost

Washington state license

No exact business-name match in the WA L&I registry — this builder may hold a license under a different legal name. Check the registry directly.

Permit record

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

PermitCityIssuedStatusEst. costAddressDescription
6315380-CN2012-06-11Completed$45,0005212 WALLINGFORD AVE NConstruct addition & alteration to existing detached garage for DADU per plan.
6130261-CN2007-06-05Completed$39,0001471 20TH AVEConstruct 3rd story addition by converting attic remove accessory dwelling unit (for the record) & interior alterations to existing single-family dwelling per plan.

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