# Building permits at 903 Union St, Seattle, WA 10 permits issued within a quarter mile in the last 30 days, at least twice the monthly pace before that. Two permits on record here. The newest, Sep 8: Remove old modified bitumen roof and replae with new Certainteed SBS roof membrane system. Within a quarter mile, the city has issued 30 more permits (28 projects) since May 1. ## At this address | Date | Type | Work | Cost | Permit | |---|---|---|---|---| | Sep 8, 2026 | Roofing | Remove old modified bitumen roof and replae with new Certainteed SBS roof membrane system. Specification :SBS-C-2-T | $449,966 | [7161721-RR](https://nearbypermits.com/seattle/permit/7161721-RR/) | | Oct 27, 2016 | Alteration or repair | Construct substantial alterations to an existing multi-family high-rise building per plans. | $10,000,000 | [6495645-CN](https://nearbypermits.com/seattle/permit/6495645-CN/) | ## Within ¼ mi since May 1, 2026 30 permits in the circle. From our copy of the city's data (last 24 months). ### This block (250 to 1,000 ft), 23 permits | Date | Address | Distance | Type | Work | Cost | Permit | |---|---|---|---|---|---|---| | Sep 30, 2026 | [800 Union St](https://nearbypermits.com/seattle/address/800-union-st/) | 480 ft W | Alteration or repair | Construct blanket permit tenant improvements to the Consulate General of Japan in Seattle on the tenth floor of existing commercial building per plan. | $18,000 | [7160064-BK](https://nearbypermits.com/seattle/permit/7160064-BK/) | | Sep 23, 2026 | [601 Union St](https://nearbypermits.com/seattle/address/601-union-st/) | 670 ft SW | Alteration or repair | Construct blanket permit tenant improvements to Snell & Wilmer on the 37th floor of existing commercial building per plan. | $64,000 | [7163264-BK](https://nearbypermits.com/seattle/permit/7163264-BK/) | | Sep 23, 2026 | [601 Union St](https://nearbypermits.com/seattle/address/601-union-st/) | 670 ft SW | Alteration or repair | Construct blanket permit tenant improvements to Snell & Wilmer on the 37th floor of existing commercial building per plan. | $206,000 | [7163258-BK](https://nearbypermits.com/seattle/permit/7163258-BK/) | | Sep 18, 2026 | [1310 Minor Ave](https://nearbypermits.com/seattle/address/1310-minor-ave/) | 970 ft NE | Alteration or repair | Construct alterations to existing mixed use building on levels 1-5 per plan. | $92,500 | [7120882-CN](https://nearbypermits.com/seattle/permit/7120882-CN/) | | Sep 15, 2026 | [601 Union St](https://nearbypermits.com/seattle/address/601-union-st/) | 670 ft SW | Alteration or repair | Construct blanket permit tenant improvements to Avenue5 Residential on the 50th floor of existing commercial building per plan. | $1,107,000 | [7160931-BK](https://nearbypermits.com/seattle/permit/7160931-BK/) | | Sep 14, 2026 | [600 University St](https://nearbypermits.com/seattle/address/600-university-st/) | 900 ft SW | Alteration or repair | Construct blanket permit tenant improvements to Puget Sound Clean Air Agency on the seventh floor of existing commercial building per plan. | $312,000 | [7154693-BK](https://nearbypermits.com/seattle/permit/7154693-BK/) | | Aug 13, 2026 | [800 Union St](https://nearbypermits.com/seattle/address/800-union-st/) | 480 ft W | Alteration or repair | Construct blanket permit tenant improvements to Oppenheimer & Co. Inc. on the 21st floor of existing commercial building per plan. | $280,000 | [7145954-BK](https://nearbypermits.com/seattle/permit/7145954-BK/) | | Aug 13, 2026 | [800 Union St](https://nearbypermits.com/seattle/address/800-union-st/) | 480 ft W | Alteration or repair | Construct blanket permit tenant improvements to Oppenheimer & Co. Inc. on the 21st floor of existing commercial building per plan. | $45,000 | [7145949-BK](https://nearbypermits.com/seattle/permit/7145949-BK/) | | Aug 12, 2026 | [600 University St](https://nearbypermits.com/seattle/address/600-university-st/) | 900 ft SW | Alteration or repair | Construct blanket permit tenant improvements to Consor Engineers on the third floor of existing commercial building per plan. | $49,000 | [7156370-BK](https://nearbypermits.com/seattle/permit/7156370-BK/) | | Aug 7, 2026 | [601 Union St](https://nearbypermits.com/seattle/address/601-union-st/) | 670 ft SW | Alteration or repair | Construct blanket permit tenant improvements to Kilpatrick Townsend on the 41st floor of existing commercial building per plan. | $1,535,000 | [7154032-BK](https://nearbypermits.com/seattle/permit/7154032-BK/) | | Aug 7, 2026 | [601 Union St](https://nearbypermits.com/seattle/address/601-union-st/) | 670 ft SW | Alteration or repair | Construct blanket permit tenant improvements to JLL on the 28th floor of existing commercial building per plan. | $977,000 | [7151762-BK](https://nearbypermits.com/seattle/permit/7151762-BK/) | | Aug 7, 2026 | [701 Pike St](https://nearbypermits.com/seattle/address/701-pike-st/) | 720 ft W | Alteration or repair | Construct blanket permit tenant improvements to Lee and Hayes on the 16th floor of existing commercial building per plan. | $375,000 | [7135931-BK](https://nearbypermits.com/seattle/permit/7135931-BK/) | | Aug 4, 2026 | [601 Union St](https://nearbypermits.com/seattle/address/601-union-st/) | 670 ft SW | Alteration or repair | Construct blanket permit tenant improvements to Washington Holdings on the 41st floor of existing commercial building per plan. | $183,000 | [7151763-BK](https://nearbypermits.com/seattle/permit/7151763-BK/) | | Jul 27, 2026 | [601 Union St](https://nearbypermits.com/seattle/address/601-union-st/) | 670 ft SW | Alteration or repair | Construct blanket permit tenant improvements to Puget Sound Clean Air Agency on parking level B of existing commercial building per plan. | $15,000 | [7154701-BK](https://nearbypermits.com/seattle/permit/7154701-BK/) | | Jul 23, 2026 | [800 Union St](https://nearbypermits.com/seattle/address/800-union-st/) | 480 ft W | Alteration or repair | Construct blanket permit tenant improvements to Mutual of Enumclaw on the 11th floor of existing commercial building per plan. | $100,000 | [7145725-BK](https://nearbypermits.com/seattle/permit/7145725-BK/) | | Jul 8, 2026 | [600 University St](https://nearbypermits.com/seattle/address/600-university-st/) | 900 ft SW | Alteration or repair | Construct blanket permit tenant improvements to Arnold & Porter Seattle on the 35th and 36th floors of existing commercial building per plan. | $4,752,065 | [7143639-BK](https://nearbypermits.com/seattle/permit/7143639-BK/) | | Jul 1, 2026 | [600 University St](https://nearbypermits.com/seattle/address/600-university-st/) | 900 ft SW | Alteration or repair | Tenant Improvements for office (Buchalter) at 31st floor of existing Office Building per plan. | $181,191 | [7118453-CN](https://nearbypermits.com/seattle/permit/7118453-CN/) | | Jun 16, 2026 | [600 University St](https://nearbypermits.com/seattle/address/600-university-st/) | 900 ft SW | Alteration or repair | Construct alterations to eliminate and close off portion of convenience stair connecting L35 - 36 maintaining connection L36 - 37 per plans | $45,000 | [7132124-CN](https://nearbypermits.com/seattle/permit/7132124-CN/) | | Jun 9, 2026 | [900 University St](https://nearbypermits.com/seattle/address/900-university-st/) | 260 ft SE | Alteration or repair | Construct interior alterations in residential building on level 1 for a cafe (Horizon House) occupy per plan. | $300,000 | [6962853-CN](https://nearbypermits.com/seattle/permit/6962853-CN/) | | Jun 2, 2026 | [1020 Seneca St](https://nearbypermits.com/seattle/address/1020-seneca-st/) | 780 ft E | Alteration or repair | Construct voluntary seismic retrofit (alternate method) to existing multifamily building (John Winthrop Apartments) per plan. | $824,397 | [7126099-CN](https://nearbypermits.com/seattle/permit/7126099-CN/) | | May 27, 2026 | [600 University St](https://nearbypermits.com/seattle/address/600-university-st/) | 900 ft SW | Alteration or repair | Blanket permit tenant improvements for BUCHALTER on Floor 31 of existing commercial building per plan. | $1,187,236 | [7142990-BK](https://nearbypermits.com/seattle/permit/7142990-BK/) | | May 20, 2026 | [600 University St](https://nearbypermits.com/seattle/address/600-university-st/) | 900 ft SW | Alteration or repair | Blanket permit tenant improvements for BEVERIDGE AND DIAMOND LAW on Floor 16 of existing commercial building per plan. | $52,000 | [7143350-BK](https://nearbypermits.com/seattle/permit/7143350-BK/) | | May 5, 2026 | [600 University St](https://nearbypermits.com/seattle/address/600-university-st/) | 900 ft SW | Alteration or repair | Construct blanket permit tenant improvements to the Washington State Court of Appeals on the 26th floor of existing commercial building per plan. | $122,000 | [7138542-BK](https://nearbypermits.com/seattle/permit/7138542-BK/) | ### Farther (1,000 ft to ¼ mi), 7 permits | Date | Address | Distance | Type | Work | Cost | Permit | |---|---|---|---|---|---|---| | Oct 2, 2026 | [520 Pike St](https://nearbypermits.com/seattle/address/520-pike-st/) | 0.24 mi W | Alteration or repair | Construct tenant improvements for office tenant [BMO] at level 13 of commercial office building [520 PIKE BUILDING] subject to field inspection [STFI]. | $484,176 | [7156309-CN](https://nearbypermits.com/seattle/permit/7156309-CN/) | | Sep 21, 2026 | [906 Pine St](https://nearbypermits.com/seattle/address/906-pine-st/) | 0.20 mi NW | Alteration or repair | Construct initial tenant improvement to existing commercial building ( Seattle convention Center) at level 2 occupy per plan. | $491,670 | [7153872-CN](https://nearbypermits.com/seattle/permit/7153872-CN/) | | Sep 14, 2026 | [1420 5th Ave](https://nearbypermits.com/seattle/address/1420-5th-ave/) | 0.23 mi W | Alteration or repair | Construct alterations in commercial building for assembly spaces on levels 27 & 28 occupy per plan. | $192,628 | [7153895-CN](https://nearbypermits.com/seattle/permit/7153895-CN/) | | Sep 14, 2026 | [1420 5th Ave](https://nearbypermits.com/seattle/address/1420-5th-ave/) | 0.23 mi W | Alteration or repair | Construct blanket permit tenant improvements to PwC on the 27th and 28th floors of existing commercial building per plan. | $1,950,000 | [7152276-BK](https://nearbypermits.com/seattle/permit/7152276-BK/) | | Sep 2, 2026 | [520 Pike St](https://nearbypermits.com/seattle/address/520-pike-st/) | 0.24 mi W | Alteration or repair | Construct blanket permit tenant improvements to Wilson Elser LLP on the 28th floor of existing commercial building per plan. | $1,302,840 | [7154993-BK](https://nearbypermits.com/seattle/permit/7154993-BK/) | | Aug 10, 2026 | [601 Pine St](https://nearbypermits.com/seattle/address/601-pine-st/) | 0.24 mi W | Alteration or repair | Tenant improvements at levels 1-3 of existing commercial building per plan. Mechanical included. | $3,000,000 | [7122723-CN](https://nearbypermits.com/seattle/permit/7122723-CN/) | | Jun 2, 2026 | [520 Pike St](https://nearbypermits.com/seattle/address/520-pike-st/) | 0.24 mi W | Alteration or repair | Blanket permit tenant improvements for JACKSON LEWIS in Suite 2300 of existing commercial building per plan. | $350,000 | [7142741-BK](https://nearbypermits.com/seattle/permit/7142741-BK/) | ## More on this street Other addresses on Union St with permits, nearest house number first: - [800 Union St](https://nearbypermits.com/seattle/address/800-union-st/): newest permit Sep 30, 2026 - [601 Union St](https://nearbypermits.com/seattle/address/601-union-st/): newest permit Sep 23, 2026 - [401 Union St](https://nearbypermits.com/seattle/address/401-union-st/): newest permit Jun 2, 2026 - [110 Union St](https://nearbypermits.com/seattle/address/110-union-st/): newest permit Mar 27, 2025 - [99 Union St](https://nearbypermits.com/seattle/address/99-union-st/): newest permit Sep 9, 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 19:34 UTC. Nearby Permits, https://nearbypermits.com. JSON API and MCP server: https://nearbypermits.com/developers/ Map, both permits at this address and 30 nearby: https://nearbypermits.com/seattle/address/903-union-st/