# Building permits at 3021 20th Ave S, Seattle, WA One permit on record here. The newest, Dec 1, 2025: Construct addition and substantial alterations to west one-family dwelling for a two-family dwelling. Within a quarter mile, the city has issued 5 more permits since May 1. ## At this address | Date | Type | Work | Cost | Permit | |---|---|---|---|---| | Dec 1, 2025 | Addition | Construct addition and substantial alterations to west one-family dwelling for a two-family dwelling per plan. (Allow (2) attached accessory dwelling units - one for a new-single family residence and one for an existing single-family residence per the land use code. Construct addition and substantia | $391,349 | [7050089-CN](https://nearbypermits.com/seattle/permit/7050089-CN/) | ## Within ¼ mi since May 1, 2026 5 permits in the circle. From our copy of the city's data (last 24 months). ### This block (250 to 1,000 ft), 4 permits | Date | Address | Distance | Type | Work | Cost | Permit | |---|---|---|---|---|---|---| | Sep 11, 2026 | [3057 Beacon Ave S](https://nearbypermits.com/seattle/address/3057-beacon-ave-s/) | 700 ft SW | Roofing | Project consist of recovering the existing roof with a new 60mil TPO membrane while leaving the existing roof membrane in place. Work consists of preparation of the existing membrane installation of 1/4" coverboard along with 60mil TPO mechanically attached. Existing rooftop elements are to remain i | $63,272 | [7162249-RR](https://nearbypermits.com/seattle/permit/7162249-RR/) | | Aug 22, 2026 | [3045 19th Ave S](https://nearbypermits.com/seattle/address/3045-19th-ave-s/) | 310 ft SW | Alteration or repair | Construct voluntary seismic retrofit at foundation level of existing one-family dwelling subject to field inspection (STFI) | $10,000 | [7159204-CN](https://nearbypermits.com/seattle/permit/7159204-CN/) | | Jun 8, 2026 | [2814 22nd Ave S](https://nearbypermits.com/seattle/address/2814-22nd-ave-s/) | 960 ft NE | Alteration or repair | Replacement of like for like composition roof material. Plywood to be installed over existing shiplap as well. | $26,039 | [7146990-RR](https://nearbypermits.com/seattle/permit/7146990-RR/) | | May 27, 2026 | [3033 21st Ave S](https://nearbypermits.com/seattle/address/3033-21st-ave-s/) | 370 ft E | Alteration or repair | Construct Interior kitchen remodel with one new window in one family dwelling subject to field inspection STFI. | $30,000 | [7144657-CN](https://nearbypermits.com/seattle/permit/7144657-CN/) | ### Farther (1,000 ft to ¼ mi), 1 permits | Date | Address | Distance | Type | Work | Cost | Permit | |---|---|---|---|---|---|---| | May 14, 2026 | [3301 Lafayette Ave S](https://nearbypermits.com/seattle/address/3301-lafayette-ave-s/) | 0.23 mi SW | Alteration or repair | Construct alterations to upper floor for bathroom within existing one-family dwelling subject to field inspection STFI. | $20,000 | [7143220-CN](https://nearbypermits.com/seattle/permit/7143220-CN/) | ## Zoning requests nearby There are no zoning requests on file within ¼ mi. Seattle's feed was last read Oct 16. ## More on this street Other addresses on 20th Ave S with permits, nearest house number first: - [3019 20th Ave S](https://nearbypermits.com/seattle/address/3019-20th-ave-s/): newest permit Dec 1, 2025 - [3061 20th Ave S](https://nearbypermits.com/seattle/address/3061-20th-ave-s/): newest permit Mar 24, 2025 - [3062 20th Ave S](https://nearbypermits.com/seattle/address/3062-20th-ave-s/): newest permit Jul 3, 2025 - [2518 20th Ave S](https://nearbypermits.com/seattle/address/2518-20th-ave-s/): newest permit May 20, 2026 - [2347 20th Ave S](https://nearbypermits.com/seattle/address/2347-20th-ave-s/): newest permit Oct 5, 2025 - [2309 20th Ave S](https://nearbypermits.com/seattle/address/2309-20th-ave-s/): newest permit Mar 19, 2026 - [2212 20th Ave S](https://nearbypermits.com/seattle/address/2212-20th-ave-s/): newest permit Jul 8, 2026 - [1906 20th Ave S](https://nearbypermits.com/seattle/address/1906-20th-ave-s/): newest permit Jul 30, 2026 - [4849 20th Ave S](https://nearbypermits.com/seattle/address/4849-20th-ave-s/): newest permit Jun 3, 2026 - [1012 20th Ave S](https://nearbypermits.com/seattle/address/1012-20th-ave-s/): newest permit Sep 1, 2026 --- Source: Seattle Department of Construction and Inspections permit data (https://cos-data.seattle.gov/d/76t5-zqzr), City of Seattle. Checked 2026-10-17 02:56 UTC. Nearby Permits, https://nearbypermits.com. JSON API and MCP server: https://nearbypermits.com/developers/ Zoning requests come from the Seattle land use permits (https://cos-data.seattle.gov/d/ht3q-kdvx), City of Seattle. We read it Oct 16, 20:48 UTC. Map, the one permit at this address and 5 nearby: https://nearbypermits.com/seattle/address/3021-20th-ave-s/