# Building permits at 500 4th Ave, Seattle, WA The biggest project within a quarter mile since May 1: a $3.5M alteration or repair at 600 4th Ave, permitted Jun 12. 18 permits on record here. The newest, Jun 2: Construct minor alterations to telecommunications facility (AT&T) on rooftop of existing commercial building. Within a quarter mile, the city has issued 14 more permits since May 1. One is for a new building, 780 ft away. ## At this address | Date | Type | Work | Cost | Permit | |---|---|---|---|---| | Jun 2, 2026 | Alteration or repair | Construct minor alterations to telecommunications facility (AT&T) on rooftop of existing commercial building per plan | $30,000 | [7075015-CN](https://nearbypermits.com/seattle/permit/7075015-CN/) | | Sep 22, 2022 | Alteration or repair | Construct alterations to an existing commercial building at the rooftop level minor communications antenna facility (AT&T) per plan. | $15,000 | [6900210-CN](https://nearbypermits.com/seattle/permit/6900210-CN/) | | Mar 10, 2020 | Alteration or repair | Construct alterations to existing commercial building on the rooftop for minor telecommunications antenna facility per plan. | $10,000 | [6748856-CN](https://nearbypermits.com/seattle/permit/6748856-CN/) | | Aug 28, 2019 | Alteration or repair | Minor non-structural tenant improvements to office space subject to field inspection STFI. | $200,000 | [6745413-CN](https://nearbypermits.com/seattle/permit/6745413-CN/) | | Jun 11, 2018 | Alteration or repair | Alterations to existing minor communication utility per plan. | $35,000 | [6637418-CN](https://nearbypermits.com/seattle/permit/6637418-CN/) | | Jun 1, 2017 | Elevator | Reconfiguration of vestibule for new lift subject to field inspection (STFI) | $40,000 | [6590468-CN](https://nearbypermits.com/seattle/permit/6590468-CN/) | | May 16, 2016 | Alteration or repair | Construct alterations to existing commercial building at rooftop minor communications utility (At&t) per plan. | $17,000 | [6512132-CN](https://nearbypermits.com/seattle/permit/6512132-CN/) | | Aug 11, 2014 | Alteration or repair | Interior alterations to existing office space (553) on 5th floor subject to field inspection (STFI) | $22,000 | [6431205-CN](https://nearbypermits.com/seattle/permit/6431205-CN/) | | Jun 16, 2014 | Alteration or repair | Construct tenant improvements to existing office building (King County Administration Building) for the east wing of the 3rd floor per plan. | $80,000 | [6412466-CN](https://nearbypermits.com/seattle/permit/6412466-CN/) | | Jun 4, 2013 | Alteration or repair | Construct walls and door to prevent public access to 5th floor shared conference rooms.Per floor plans STFI. | $3,000 | [6367502-CN](https://nearbypermits.com/seattle/permit/6367502-CN/) | | Feb 20, 2013 | Alteration or repair | Closed as incomplete - expired permit. Alterations to existing minor communications utility on rooftop of existing office building to add battery cabinets to existing equipment platform and associated equipment per plan. | $15,000 | [6345012-CN](https://nearbypermits.com/seattle/permit/6345012-CN/) | | Dec 18, 2012 | Alteration or repair | Construct tenant improvements to existing office building on the 8th floor subject to field inspection (STFI)/per floor plan. | $2,000 | [6346464-CN](https://nearbypermits.com/seattle/permit/6346464-CN/) | | Apr 10, 2012 | Alteration or repair | Tenant improvement to portion of 3rd floor offices for the "King County Department of Elections including mechanical per plan. | $108,536 | [6312617-CN](https://nearbypermits.com/seattle/permit/6312617-CN/) | | Dec 5, 2011 | Alteration or repair | Construct tenant improvements to existing commercial building at 2nd & 3rd floors per plan. (King County Administration Building) per plans | $1,000,000 | [6293479-CN](https://nearbypermits.com/seattle/permit/6293479-CN/) | | Aug 8, 2011 | Roofing | Install battery cabinet on roof of existing general retail sales and service building (King County Administration Building) per plans | $20,000 | [6278658-CN](https://nearbypermits.com/seattle/permit/6278658-CN/) | | Jul 22, 2011 | Addition | Modification to an existing AT&T facility to replace (3) existing antenna ballast mounts with (3) antenna mounts connected to roof structure and addition of (3) LTE antennas and ancillary equipment;existing antennas to remain per plan. | $15,000 | [6274644-CN](https://nearbypermits.com/seattle/permit/6274644-CN/) | | Apr 7, 2006 | Fence, wall or deck | Demo of existing rooftop window washing system. Installation of new steel structure and modifications of existing steel structure for new window washing system all per plan | $243,000 | [6076472-CN](https://nearbypermits.com/seattle/permit/6076472-CN/) | | Jan 9, 2006 | Roofing | Install 5 equipment cabinets replace 6 existing & add 3 antennas on roof top minor communication facility per plan. | $10,000 | [6075107-CN](https://nearbypermits.com/seattle/permit/6075107-CN/) | ## Within ¼ mi since May 1, 2026 14 permits in the circle. From our copy of the city's data (last 24 months). ### This block (250 to 1,000 ft), 8 permits | Date | Address | Distance | Type | Work | Cost | Permit | |---|---|---|---|---|---|---| | Sep 29, 2026 | [506 2nd Ave](https://nearbypermits.com/seattle/address/506-2nd-ave/) | 700 ft SW | Alteration or repair | Construct tenant improvements in a commercial building on floor 3 Suite 320 subject to field inspection (STFI) | $75,000 | [7164755-CN](https://nearbypermits.com/seattle/permit/7164755-CN/) | | Sep 8, 2026 | [720 3rd Ave](https://nearbypermits.com/seattle/address/720-3rd-ave/) | 860 ft NW | Addition | Construct addition at level 01 for existing mixed use building and occupy per plan. | $378,000 | [7115943-CN](https://nearbypermits.com/seattle/permit/7115943-CN/) | | Sep 3, 2026 | [700 5th Ave](https://nearbypermits.com/seattle/address/700-5th-ave/) | 780 ft N | New building | Establish a standard plan for a one-family dwelling (no construction) | $266,935 | [7142326-CN](https://nearbypermits.com/seattle/permit/7142326-CN/) | | Aug 10, 2026 | [600 5th Ave](https://nearbypermits.com/seattle/address/600-5th-ave/) | 480 ft N | Alteration or repair | Construct alterations to existing office building (Seattle Justice Center) subject to field inspection. | $301,725 | [7055021-CN](https://nearbypermits.com/seattle/permit/7055021-CN/) | | Aug 4, 2026 | [610 5th Ave](https://nearbypermits.com/seattle/address/610-5th-ave/) | 480 ft N | Alteration or repair | Construct alterations to install worker fall protection for institutional building [SEATTLE JUSTICE CENTER] per plan. | $579,600 | [7136816-CN](https://nearbypermits.com/seattle/permit/7136816-CN/) | | Jun 12, 2026 | [600 4th Ave](https://nearbypermits.com/seattle/address/600-4th-ave/) | 340 ft N | Alteration or repair | Construct exterior alterations to City Hall per plan. | $3,500,000 | [7140475-CN](https://nearbypermits.com/seattle/permit/7140475-CN/) | | Jun 12, 2026 | [700 5th Ave](https://nearbypermits.com/seattle/address/700-5th-ave/) | 780 ft N | Alteration or repair | Construct blanket permit tenant improvements to Seattle City Light on floors: 28 30 32 33 34 35 36 of existing commercial building per plan. | $2,300,000 | [7087259-BK](https://nearbypermits.com/seattle/permit/7087259-BK/) | | Jun 3, 2026 | [701 5th Ave](https://nearbypermits.com/seattle/address/701-5th-ave/) | 690 ft NW | Alteration or repair | Construct interior alterations to existing tenant space subject to field inspection STFI. | $22,500 | [7145753-CN](https://nearbypermits.com/seattle/permit/7145753-CN/) | ### Farther (1,000 ft to ¼ mi), 6 permits | Date | Address | Distance | Type | Work | Cost | Permit | |---|---|---|---|---|---|---| | Sep 29, 2026 | [711 2nd Ave](https://nearbypermits.com/seattle/address/711-2nd-ave/) | 0.22 mi W | Alteration or repair | Blanket tenant improvements for MARKETY READY in Suite 1025 of existing commercial building per plan. | $700,000 | [7140221-BK](https://nearbypermits.com/seattle/permit/7140221-BK/) | | Sep 16, 2026 | [101 Yesler Way](https://nearbypermits.com/seattle/address/101-yesler-way/) | 0.23 mi SW | Alteration or repair | Construct alterations to retail space #103A on ground floor per plan. | $20,000 | [7137485-CN](https://nearbypermits.com/seattle/permit/7137485-CN/) | | Aug 24, 2026 | [222 2nd Av Et S](https://nearbypermits.com/seattle/address/222-2nd-av-et-s/) | 0.21 mi S | Alteration or repair | Construct tenant improvements in existing commercial building on level one per plan. | $25,000 | [7154992-CN](https://nearbypermits.com/seattle/permit/7154992-CN/) | | Aug 18, 2026 | [615 2nd Ave](https://nearbypermits.com/seattle/address/615-2nd-ave/) | 0.19 mi W | Alteration or repair | Construct tenant improvements for office space at level 7 of existing commercial building per plan | $547,017 | [7128757-CN](https://nearbypermits.com/seattle/permit/7128757-CN/) | | Aug 17, 2026 | [800 5th Ave](https://nearbypermits.com/seattle/address/800-5th-ave/) | 0.20 mi N | Alteration or repair | Tenant Improvements for new gender neutral restrooms (Morgan Stanley) at 26th and 28th floors of existing office building per plan. Mechanical included. | $249,681 | [7114443-CN](https://nearbypermits.com/seattle/permit/7114443-CN/) | | Jun 22, 2026 | [301 2nd Ave S](https://nearbypermits.com/seattle/address/301-2nd-ave-s/) | 0.24 mi SW | Elevator | Construct elevator modernization to existing Seattle Fire Department Headquarters building per plan | $213,638 | [7103737-CN](https://nearbypermits.com/seattle/permit/7103737-CN/) | ## More on this street Other addresses on 4th Ave with permits, nearest house number first: - [600 4th Ave](https://nearbypermits.com/seattle/address/600-4th-ave/): newest permit Jun 12, 2026 - [900 4th Ave](https://nearbypermits.com/seattle/address/900-4th-ave/): newest permit Nov 26, 2025 - [909 4th Ave](https://nearbypermits.com/seattle/address/909-4th-ave/): newest permit Oct 20, 2025 - [919 4th Ave](https://nearbypermits.com/seattle/address/919-4th-ave/): newest permit Aug 18, 2025 - [925 4th Ave](https://nearbypermits.com/seattle/address/925-4th-ave/): newest permit Aug 17, 2026 - [1000 4th Ave](https://nearbypermits.com/seattle/address/1000-4th-ave/): newest permit Sep 29, 2026 - [1001 4th Ave](https://nearbypermits.com/seattle/address/1001-4th-ave/): newest permit Aug 21, 2025 - [1101 4th Ave](https://nearbypermits.com/seattle/address/1101-4th-ave/): newest permit Nov 21, 2024 - [1125 4th Ave](https://nearbypermits.com/seattle/address/1125-4th-ave/): newest permit Mar 17, 2025 - [1201 4th Ave](https://nearbypermits.com/seattle/address/1201-4th-ave/): newest permit Sep 4, 2025 --- Source: Seattle Department of Construction and Inspections permit data (https://cos-data.seattle.gov/d/76t5-zqzr), City of Seattle. Checked 2026-10-06 22:06 UTC. Nearby Permits, https://nearbypermits.com. JSON API and MCP server: https://nearbypermits.com/developers/ Map, all 18 permits at this address and 14 nearby: https://nearbypermits.com/seattle/address/500-4th-ave/