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ADUs permits in Seattle, WA

8 permits issued in the last 14 days · $1,874,291 total estimated project value · 86 tracked since 2026-07-27 · Source: City of Seattle Open Data · Updated November 07, 2026

IssuedAddressWork descriptionEst. value
2026-11-05216 NW 140TH ST · 98177Allow new detached accessory dwelling unit accessory to existing residential use per land use code. Construct new one family dwelling per standard plan 6800134-SP.
ADUs
$86,997view
2026-11-046753 12TH AVE SW · 98106Construct NORTHWEST two-family dwelling per plan. [Allow single-family residence with attached accessory dwelling unit and new single-family residence to existing single-family us
New ConstructionADUs
$475,451view
2026-11-0310741 A FREMONT AVE N · 98133Construct middle one-family dwelling (DADU 2) per plan. (Establish use as housing for two detached dwelling units per land use code. Existing detached dwelling to remain. Constru
ADUs
$202,684view
2026-11-0310741 B FREMONT AVE N · 98133Construct west one-family dwelling (DADU 1) per plan. Project includes removal of detached garage. (Establish use as housing for two detached dwelling units per land use code. E
ADUs
$238,607view
2026-11-021506 SW FINDLAY ST · 98106Construct alterations to two-family dwelling exterior decks per plan. Complete and final for single-family residence with attached accessory dwelling unit under record 6095778-CN.
Decks & PatiosRemodelingADUs
$141,015view
2026-10-301738 B S PEARL ST · 98108Construct NW one-family dwelling (DADU) per plan. (Establish use as housing for four detached dwelling units per land use code. Existing detached dwelling to remain. Construct as
ADUs
$347,642view
2026-10-293210 NE 92ND ST · 98115Construct new one family dwelling (West DADU) per plan. (Allow new detached accessory dwelling units to existing single family use per land use code. Construct two new one family
ADUs
$195,605view
2026-10-283212 NE 92ND ST · 98115Construct new one family dwelling (East DADU) per plan. (Allow new detached accessory dwelling units to existing single family use per land use code. Construct two new one family
ADUs
$186,290view

Every row is a property owner who just got city approval to start a adus project — or a competitor's job you can learn from. Data is public record, refreshed daily by PermitsRadar.

Other trades in Seattle, WA

Decks & PatiosDemolitionFoundationRemodelingRoofingWindows & Doors

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