Updated daily from official Seattle records

Seattle Addition
Building Permits

185 addition permits tracked in Seattle. 133 projects have no contractor yet.

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185

Permits tracked

133

No GC assigned

$81M

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 4324 NE 44TH ST
HOT · No GC addition Issued Aug 04, 2026

Construct addition and alterations to existing one family dwelling subject to field inspection (STFI).

4324 NE 44TH ST, 98105

SEATTLE, WA · $10,000

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Map of 210 3RD AVE S
HOT · No GC addition In Review Aug 03, 2026

Construct exterior deck addition & structural repairs at ground level of existing apartment building occupy per plan

210 3RD AVE S, 98104

SEATTLE, WA · $120,000

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Map of 1931 9TH AVE W
HOT · No GC addition In Review Aug 03, 2026

Construct exterior deck addition to one-family dwelling per plan

1931 9TH AVE W, 98119

SEATTLE, WA · $150,000

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Map of 11305 12TH AVE NE
HOT · No GC addition In Review Aug 03, 2026

Construct alterations to remove carport to slab and construct two-story addition with garage at south side of existing o...

11305 12TH AVE NE, 98125

SEATTLE, WA · $109,460

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Map of 9316 56TH AVE S
HOT · No GC addition In Review Aug 01, 2026

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

9316 56TH AVE S, 98118

SEATTLE, WA · $175,000

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Map of 10544 2nd AVE NW
HOT · No GC addition In Review Aug 01, 2026

Construct alterations and additions to one family dwelling per plan.

10544 2nd AVE NW

Seattle, WA · $80,000

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Map of 12527 Dayton AVE N
HOT · No GC addition In Review Jul 31, 2026

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

12527 Dayton AVE N

Seattle, WA · $170,000

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Map of 9521 25th AVE NW
HOT · No GC addition In Review Jul 31, 2026

Construct addition & alterations to one-family dwelling per plan

9521 25th AVE NW

Seattle, WA · $40,000

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Map of 4040 7TH AVE NE
HOT · No GC addition Jul 31, 2026

Allow one additional unit in multifamily housing per land use code. Construct as alterations for fitness and bike stor...

4040 7TH AVE NE, 98105

SEATTLE, WA · $1,250,000

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Map of 4215 S DAWSON ST
HOT · No GC addition In Review Jul 31, 2026

Construct alterations and additions for one-family dwelling per plan.

4215 S DAWSON ST, 98118

SEATTLE, WA · $80,998

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Map of 188 E BLAINE ST
HOT · No GC addition Jul 30, 2026

Construct interior non-structural alterations to convert portion of adjacent office space into expansion of fitness cen...

188 E BLAINE ST, 98102

SEATTLE, WA · $25,000

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Map of 11414 37TH AVE SW
HOT · No GC addition In Review Jul 30, 2026

Construct alterations and additions to existing one family dwelling per plan

11414 37TH AVE SW, 98146

SEATTLE, WA · $156,986

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