8347 20th Ave NW

Seattle, WA 98117

New buildings permitted at four addresses within a quarter mile since May 1, the largest $439,114.

One permit on record here. The newest, Sep 10, 2025: Allow new detached accessory dwelling unit to existing single family use per land use code. Within a quarter mile, the city has issued 15 more permits since May 1. The nearest new building is 0.24 mi away.

1. Allow new detached accessory dwelling unit to existing single family use per land use code

   Fence, wall or deck
   Sep 10, 2025$117,854

1. Add egress window and alterations to exterior stairs to one-dwelling unit subject to field inspection

   8337 22nd Ave NW · 510 ft W · Alteration or repair
   Aug 2$39,120
2. Interior alteration to dwelling unit Subject To Field Inspection (STFI)

   1902 NW 83rd St · 550 ft SE · Alteration or repair
   Jul 6$150,000
3. Construct seismic retrofit to existing single family residence per Earthquake Home Retrofit plan set

   8050 20th Ave NW · 670 ft S · Alteration or repair
   Jun 22$5,000
4. Construct alterations to add bedrooms and bathroom at basement level and remodel bathroom at main level of…

   8050 20th Ave NW · 670 ft S · Alteration or repair
   Jun 17$150,000
5. Residential reroof only

   8339 18th Ave NW · 580 ft E · Roofing
   Jun 12$10,234
6. Construct alterations to remodel kitchen at main floor level of one-family dwelling subject to field…

   8322 22nd Ave NW · 440 ft SW · Alteration or repair
   Jun 4$7,097

1. Construct exterior entry stairs and landing to replace existing for one-family dwelling subject to field…

   8004 22nd Ave NW · 0.22 mi S · Alteration or repair
   Sep 10$10,000
2. Construct alterations to one-family dwelling at attached garage to create habitable space subject to field…

   8023 18th Ave NW · 0.21 mi SE · Fence, wall or deck
   Aug 4$18,000
3. Construct east duplex

   7758 21st Ave NW · 0.24 mi S · New building
   Jul 24$439,114
4. Construct east single family dwelling unit adjacent alley permitted under 7077917-CN

   2015 NW 80th St · 0.24 mi S · New building
   Jul 24$242,550
5. Construct west one-family dwelling

   7754 21st Ave NW · 0.25 mi S · New building
   Jul 24$375,243
6. Construct west one-family dwelling

   7760 21st Ave NW · 0.24 mi S · New building
   Jul 24$356,932
7. Demolition of the existing detached carport and construction of a new detached carport in existing footprint…

   8001 22nd Ave NW · 0.24 mi SW · Fence, wall or deck
   Jul 8$50,000
8. Construct substantial alterations to existing one family dwelling

   8547 17th Ave NW · 0.20 mi NE · Alteration or repair
   May 19$127,368
9. Construct alterations to one-family dwelling [retained earth not to exceed 4'-0"] subject to field inspection…

   8314 16th Ave NW · 0.24 mi E · Alteration or repair
   May 6$2,000

Seattle Department of Construction and Inspections updated its data Oct 5, 2026. We checked it Oct 5, 11:54 UTC. Official data.

At this address: every permit the city holds. Nearby: permits from the last two years, from our copy of the city's data.

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