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ADUs permits in Seattle, WA

5 permits issued in the last 14 days · $2,149,852 total estimated project value · Source: City of Seattle Open Data · Updated July 13, 2026

IssuedAddressWork descriptionEst. value
2026-07-099410 A 1ST AVE NE · 98115Construct new two-family dwelling (Building 1) per plan. (Establish single family dwelling unit with attached accessory dwelling unit.] Construct (2) two-family dwellings and (1)
ADUs
$320,063view
2026-07-096834 24TH AVE NE · 98115Construct new (West) two-family dwelling per plan. (Establish use as single-family dwelling units with an attached accessory dwelling unit per land use code. Construct one new tw
ADUs
$544,750view
2026-07-099410 A 1ST AVE NE · 98115Construct new two-family dwelling (Building 3) per plan. (Establish single family dwelling unit with attached accessory dwelling unit.] Construct (2) two-family dwellings and (1)
ADUs
$318,771view
2026-07-014052 WILLIAMS AVE W · 98199Construct new one-family dwelling (South DADU) per plan. (Establish use as single-family residence with detached accessory dwelling unit per Land Use Code. Construct two new on
RemodelingADUs
$219,389view
2026-07-012719 W ELMORE ST · 98199Construct new one-family dwelling (North SFR) per plan. (Establish use as single-family residence with detached accessory dwelling unit per Land Use Code. Construct two new one-
ADUs
$746,879view

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.

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