# Building permits at 1455 20th Ave, Seattle, WA One permit on record here. The newest, Jul 16, 2025: Construct tenant improvements to existing apartment building. Within a quarter mile, the city has issued 6 more permits since May 1. ## At this address | Date | Type | Work | Cost | Permit | |---|---|---|---|---| | Jul 16, 2025 | Alteration or repair | Construct tenant improvements to existing apartment building per plan | $68,192 | [7059474-CN](https://nearbypermits.com/seattle/permit/7059474-CN/) | ## Within ¼ mi since May 1, 2026 6 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 | |---|---|---|---|---|---|---| | Aug 12, 2026 | [1715 E Madison St](https://nearbypermits.com/seattle/address/1715-e-madison-st/) | 810 ft NW | Alteration or repair | Construct minor alterations to telecommunications facility on existing tower per plan | $25,000 | [7153529-CN](https://nearbypermits.com/seattle/permit/7153529-CN/) | | Jul 22, 2026 | [1600 19th Ave](https://nearbypermits.com/seattle/address/1600-19th-ave/) | 330 ft NW | Demolition | Establish as vacant per the land use code. Demolish residential structure per plans | Not listed | [7112374-DM](https://nearbypermits.com/seattle/permit/7112374-DM/) | | Jul 13, 2026 | [1818 E Madison St](https://nearbypermits.com/seattle/address/1818-e-madison-st/) | 850 ft NW | Alteration or repair | Interior repairs to multifamily building Subject to field inspection (STFI) | $22,381 | [7152122-CN](https://nearbypermits.com/seattle/permit/7152122-CN/) | | Jun 2, 2026 | [1715 E Madison St](https://nearbypermits.com/seattle/address/1715-e-madison-st/) | 810 ft NW | Alteration or repair | Construct alterations to telecommunications facility (AT&T) on site of existing commercial building per plan. | $25,000 | [7129991-CN](https://nearbypermits.com/seattle/permit/7129991-CN/) | ### Farther (1,000 ft to ¼ mi), 2 permits | Date | Address | Distance | Type | Work | Cost | Permit | |---|---|---|---|---|---|---| | Sep 3, 2026 | [1637 23rd Ave](https://nearbypermits.com/seattle/address/1637-23rd-ave/) | 0.21 mi NE | Alteration or repair | Construct foundation repair with helical-piles to portions of an existing single-family residence per plan. | $44,000 | [7150587-CN](https://nearbypermits.com/seattle/permit/7150587-CN/) | | Jul 10, 2026 | [1116 A 18th Ave](https://nearbypermits.com/seattle/address/1116-a-18th-ave/) | 0.20 mi SW | Fence, wall or deck | Remove and replace 1 rooftop patio window in an existing multi-family residence. Like for like in size. No change to structural or clear open subject to field inspection STFI. | $4,013 | [7152424-CN](https://nearbypermits.com/seattle/permit/7152424-CN/) | ## More on this street Other addresses on 20th Ave with permits, nearest house number first: - [1452 20th Ave](https://nearbypermits.com/seattle/address/1452-20th-ave/): newest permit Dec 17, 2025 - [1463 20th Ave](https://nearbypermits.com/seattle/address/1463-20th-ave/): newest permit Jun 12, 2025 - [941 20th Ave](https://nearbypermits.com/seattle/address/941-20th-ave/): newest permit Sep 2, 2025 - [925 20th Ave](https://nearbypermits.com/seattle/address/925-20th-ave/): newest permit Oct 13, 2025 - [823 20th Ave](https://nearbypermits.com/seattle/address/823-20th-ave/): newest permit Oct 1, 2025 - [706 20th Ave](https://nearbypermits.com/seattle/address/706-20th-ave/): newest permit Aug 3, 2026 - [506 20th Ave](https://nearbypermits.com/seattle/address/506-20th-ave/): newest permit Jun 16, 2026 - [504 20th Ave](https://nearbypermits.com/seattle/address/504-20th-ave/): newest permit Mar 12, 2026 - [401 20th Ave](https://nearbypermits.com/seattle/address/401-20th-ave/): newest permit Mar 31, 2026 - [308 20th Ave](https://nearbypermits.com/seattle/address/308-20th-ave/): newest permit Jun 18, 2025 --- Source: Seattle Department of Construction and Inspections permit data (https://cos-data.seattle.gov/d/76t5-zqzr), City of Seattle. Checked 2026-10-07 14:55 UTC. Nearby Permits, https://nearbypermits.com. JSON API and MCP server: https://nearbypermits.com/developers/ Map, the one permit at this address and 6 nearby: https://nearbypermits.com/seattle/address/1455-20th-ave/