# Building permits at 820 18th Ave, Seattle, WA 13 permits on record here. The newest, Jun 4, 2025: Construct alterations to minor telecommunications facility (AT&T) at the roof level of building. Within a quarter mile, the city has issued 9 more permits since May 1. ## At this address | Date | Type | Work | Cost | Permit | |---|---|---|---|---| | Jun 4, 2025 | Roofing | Construct alterations to minor telecommunications facility (AT&T) at the roof level of building per plan | $30,000 | [7073877-CN](https://nearbypermits.com/seattle/permit/7073877-CN/) | | May 10, 2023 | Alteration or repair | Construct alterations to an existing commercial building at the rooftop level minor communications antenna facility (AT&T) and at equipment room per plan. | $15,000 | [6931340-CN](https://nearbypermits.com/seattle/permit/6931340-CN/) | | Oct 16, 2022 | Alteration or repair | Tenant improvement to existing church subject to filed inspection STFI. | $19,000 | [6914299-CN](https://nearbypermits.com/seattle/permit/6914299-CN/) | | Jul 29, 2022 | Roofing | Construct alterations to existing minor telecommunication facility (Verizon) on roof of existing school (adjacent to Imculate Conception Church) per plan. | $25,000 | [6884781-CN](https://nearbypermits.com/seattle/permit/6884781-CN/) | | Oct 19, 2018 | Alteration or repair | Construct alterations to existing institution south school on the rooftop form minor communication antenna facility per plan. | $15,000 | [6677717-CN](https://nearbypermits.com/seattle/permit/6677717-CN/) | | Mar 31, 2016 | Alteration or repair | Construct alterations to an existing minor communications antenna facility (AT&T) per plans. | $50,000 | [6510402-CN](https://nearbypermits.com/seattle/permit/6510402-CN/) | | Aug 13, 2015 | Alteration or repair | Construct alterations to an existing minor communications antenna facility (Verizon) per plans | $35,000 | [6476456-CN](https://nearbypermits.com/seattle/permit/6476456-CN/) | | Aug 4, 2015 | Alteration or repair | Construct alterations to existing minor communication utility (AT&T) at rooftop and equipment room of existing private school building per plan. | $50,000 | [6458309-CN](https://nearbypermits.com/seattle/permit/6458309-CN/) | | Apr 15, 2014 | Alteration or repair | Remove and replace antennas on rooftop and alter equipment in basement communications room for modification to existing minor communication facility per plan. | $30,000 | [6395535-CN](https://nearbypermits.com/seattle/permit/6395535-CN/) | | Feb 8, 2012 | Roofing | Alter existing telecommunications facility on roof and in equipment room of existing building per plan. | $15,000 | [6279420-CN](https://nearbypermits.com/seattle/permit/6279420-CN/) | | Aug 16, 2010 | Roofing | Closed as incomplete - expired permit. Voluntary seismic upgrades and re-roof existing private school per plan. | $120,000 | [6252448-CN](https://nearbypermits.com/seattle/permit/6252448-CN/) | | Jul 22, 2010 | Alteration or repair | Alterations to add new and relocate existing antennas on rooftop for minor communication utility of existing school building per plan. | $20,000 | [6221625-CN](https://nearbypermits.com/seattle/permit/6221625-CN/) | | May 4, 2010 | Alteration or repair | Closed as incomplete - expired permit. Replace exiting damaged foor in basement kitchen area and interior alteration to existing church per plan. | $5,000 | [6246250-CN](https://nearbypermits.com/seattle/permit/6246250-CN/) | ## Within ¼ mi since May 1, 2026 9 permits in the circle. From our copy of the city's data (last 24 months). ### Next door (under 250 ft), 1 permits | Date | Address | Distance | Type | Work | Cost | Permit | |---|---|---|---|---|---|---| | Jun 23, 2026 | [800 18th Ave](https://nearbypermits.com/seattle/address/800-18th-ave/) | 100 ft S | Alteration or repair | Construct alterations for building stabilization (Immaculate Conception Church) at east end of ground floor in existing institutional building per plan. | $175,000 | [7138441-CN](https://nearbypermits.com/seattle/permit/7138441-CN/) | ### This block (250 to 1,000 ft), 3 permits | Date | Address | Distance | Type | Work | Cost | Permit | |---|---|---|---|---|---|---| | Aug 3, 2026 | [706 20th Ave](https://nearbypermits.com/seattle/address/706-20th-ave/) | 840 ft SE | Alteration or repair | Construct alterations for fire damage repair to remove damaged dropped ceilings finishes and windows in kind subject to field inspection (STFI). | $75,000 | [7154710-CN](https://nearbypermits.com/seattle/permit/7154710-CN/) | | Jul 10, 2026 | [1116 A 18th Ave](https://nearbypermits.com/seattle/address/1116-a-18th-ave/) | 770 ft N | 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/) | | Jul 6, 2026 | [822 15th Ave](https://nearbypermits.com/seattle/address/822-15th-ave/) | 930 ft W | Alteration or repair | Construct alterations and additions to west townhouse unit in existing townhouse building per plan. | $175,000 | [7130476-CN](https://nearbypermits.com/seattle/permit/7130476-CN/) | ### Farther (1,000 ft to ¼ mi), 5 permits | Date | Address | Distance | Type | Work | Cost | Permit | |---|---|---|---|---|---|---| | Sep 29, 2026 | [832 14th Ave](https://nearbypermits.com/seattle/address/832-14th-ave/) | 0.25 mi W | Alteration or repair | Construct fire damage repair to two-family dwelling subject to field inspection (STFI) | $75,000 | [7164750-CN](https://nearbypermits.com/seattle/permit/7164750-CN/) | | Sep 10, 2026 | [1501 E Spring St](https://nearbypermits.com/seattle/address/1501-e-spring-st/) | 0.21 mi NW | Alteration or repair | Construct fire damage repair to basement of Unit 5 of existing multifamily building. Repairs will be to repair and replace in kind subject to field inspection. | $12,000 | [7162048-CN](https://nearbypermits.com/seattle/permit/7162048-CN/) | | Sep 10, 2026 | [536 19th Ave](https://nearbypermits.com/seattle/address/536-19th-ave/) | 0.19 mi S | Addition | Construct deck addition for one family dwelling subject to field inspection STFI. | $7,000 | [7161728-CN](https://nearbypermits.com/seattle/permit/7161728-CN/) | | Jun 1, 2026 | [1103 16th Ave](https://nearbypermits.com/seattle/address/1103-16th-ave/) | 0.20 mi NW | Alteration or repair | Remove existing and construct new accessory building and sitework for existing institution (Spring Manor Community House) per plan. | $320,575 | [7107268-CN](https://nearbypermits.com/seattle/permit/7107268-CN/) | | May 28, 2026 | [1103 16th Ave](https://nearbypermits.com/seattle/address/1103-16th-ave/) | 0.20 mi NW | Demolition | Demolish existing accessory structure subject to field inspection (STFI). | $175,000 | [7107269-DM](https://nearbypermits.com/seattle/permit/7107269-DM/) | ## More on this street Other addresses on 18th Ave with permits, nearest house number first: - [800 18th Ave](https://nearbypermits.com/seattle/address/800-18th-ave/): newest permit Jun 23, 2026 - [902 18th Ave](https://nearbypermits.com/seattle/address/902-18th-ave/): newest permit Apr 17, 2026 - [313 18th Ave](https://nearbypermits.com/seattle/address/313-18th-ave/): newest permit Dec 14, 2025 - [161 18th Ave](https://nearbypermits.com/seattle/address/161-18th-ave/): newest permit Mar 5, 2025 - [1803 18th Ave](https://nearbypermits.com/seattle/address/1803-18th-ave/): newest permit Sep 8, 2026 --- Source: Seattle Department of Construction and Inspections permit data (https://cos-data.seattle.gov/d/76t5-zqzr), City of Seattle. Checked 2026-10-06 15:08 UTC. Nearby Permits, https://nearbypermits.com. JSON API and MCP server: https://nearbypermits.com/developers/ Map, all 13 permits at this address and 9 nearby: https://nearbypermits.com/seattle/address/820-18th-ave/