Updated daily from official Seattle records

Seattle Addition
Building Permits

385 addition permits tracked in Seattle. 261 projects have no contractor yet.

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385

Permits tracked

261

No GC assigned

$127M

Total project value

Live Data

Recent addition permits in Seattle

Real permits from official Seattle records. Addresses and project values are public — sign up to unlock owner contact info.

Map of 1945 NW 95TH ST
HOT · No GC addition Nov 12, 2026

Construct additions and alterations to a one-family dwelling subject to field inspection (STFI)

1945 NW 95TH ST, 98117

SEATTLE, WA · $150,000

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Map of 9277 FAUNTLEROY WAY SW
HOT · No GC addition In Review Nov 10, 2026

Construct alterations and addition to one family dwelling per plan.

9277 FAUNTLEROY WAY SW, 98136

SEATTLE, WA · $600,000

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Map of 3223 23RD AVE W
HOT · No GC addition In Review Nov 09, 2026

Construct addition and substantial alterations to existing one family dwelling per plan.

3223 23RD AVE W, 98199

SEATTLE, WA · $342,475

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Map of 3645 DENSMORE AVE N
HOT · No GC addition In Review Nov 09, 2026

Construct additions and alterations to existing one family dwelling per plan.

3645 DENSMORE AVE N, 98103

SEATTLE, WA · $211,536

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Map of 810 NE 81ST ST
HOT · No GC addition In Review Nov 09, 2026

Construct alterations and additions to existing one family dwelling per plan.

810 NE 81ST ST, 98115

SEATTLE, WA · $75,000

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Map of 11017 37TH AVE SW
HOT · No GC addition Issued Nov 09, 2026

Construct addition to one family dwelling subject to field inspection STFI.

11017 37TH AVE SW, 98146

SEATTLE, WA · $20,000

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Map of 431 N 70TH ST
HOT · No GC addition Nov 09, 2026

Construct addition and alterations to existing SFR per STFI

431 N 70TH ST, 98103

SEATTLE, WA · $200,000

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Map of 2323 NW 99TH ST
HOT · No GC addition In Review Nov 09, 2026

Allow housing for one new stacked dwelling unit within an existing structure per land use code. Construct alterations a...

2323 NW 99TH ST, 98117

SEATTLE, WA · $150,170

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Map of 13254 1ST AVE NW
HOT · No GC addition Nov 06, 2026

Construct addition & alterations to one-family dwelling subject to field inspection (STFI)

13254 1ST AVE NW, 98177

SEATTLE, WA · $36,182

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Map of 234 21ST AVE E
HOT · No GC addition In Review Nov 06, 2026

Construct addition and substantial alterations for two family dwelling per plan.

234 21ST AVE E, 98112

SEATTLE, WA · $250,000

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Map of 6050 EAST MARGINAL WAY S
HOT · No GC addition In Review Nov 06, 2026

Tenant improvements in commercial building to add toilet rooms at SE corner of 1st floor per plan.

6050 EAST MARGINAL WAY S, 98108

SEATTLE, WA · $150,000

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Map of 2212 2ND AVE N
HOT · No GC addition In Review Nov 06, 2026

Construct substantial alterations and additions to existing one family dwelling per plan.

2212 2ND AVE N, 98109

SEATTLE, WA · $577,688

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