# Building permits at 99 Union St, Seattle, WA The biggest project within a quarter mile since May 1: a $3.6M alteration or repair at 1301 5th Ave, permitted May 5. 11 permits on record here. The newest, Sep 9, 2025: Construct alterations to Levels 1 & 3 of existing commercial building (Four Seasons) occupy. Within a quarter mile, the city has issued 42 more permits since May 1. ## At this address | Date | Type | Work | Cost | Permit | |---|---|---|---|---| | Sep 9, 2025 | Alteration or repair | Construct alterations to Levels 1 & 3 of existing commercial building (Four Seasons) occupy per plan | $2,000,000 | [7084133-CN](https://nearbypermits.com/seattle/permit/7084133-CN/) | | Sep 11, 2023 | Alteration or repair | Construct Interior alterations to an existing residential condominium per STFI | $40,000 | [6984993-CN](https://nearbypermits.com/seattle/permit/6984993-CN/) | | Apr 4, 2019 | Alteration or repair | Alterations to condominium unit 1804 (Four Seasons Hotel) subject to field inspection (STFI). | $534,500 | [6720670-CN](https://nearbypermits.com/seattle/permit/6720670-CN/) | | Oct 1, 2018 | Alteration or repair | TI to existing commercial space subject to field inspection STFI. | $60,000 | [6691425-CN](https://nearbypermits.com/seattle/permit/6691425-CN/) | | Feb 1, 2017 | Alteration or repair | Construct alterations to unit 1103 in an existing condominium building subject to field inspection (STFI) | $500,000 | [6577967-CN](https://nearbypermits.com/seattle/permit/6577967-CN/) | | May 12, 2015 | Alteration or repair | Construct alterations to restaurant at ground floor of existing mixed-use building and occupy per plan. | $1,500,000 | [6450818-CN](https://nearbypermits.com/seattle/permit/6450818-CN/) | | Dec 29, 2014 | Alteration or repair | Interior alterations to unit 1704 per floor plan subject to field inspection (STFI). | $150,000 | [6452481-CN](https://nearbypermits.com/seattle/permit/6452481-CN/) | | Apr 28, 2014 | Alteration or repair | Construct alteration to residential units 1205 and 1206 to connect with shared door in existing multi-family building per plans. | $8,000 | [6412001-CN](https://nearbypermits.com/seattle/permit/6412001-CN/) | | Jun 14, 2012 | Alteration or repair | Emergency repair of guardrail glass panels for existing hotel (Four Seasons Hotel) per plans. | $50,000 | [6323066-CN](https://nearbypermits.com/seattle/permit/6323066-CN/) | | Apr 11, 2011 | Alteration or repair | Construct alterations for unit 2000 of existing mix-used building per floor plan and STFI. | $1,000,000 | [6279794-CN](https://nearbypermits.com/seattle/permit/6279794-CN/) | | Oct 20, 2010 | Alteration or repair | Tenant improvement to room F60 on basement floor F subject to field inspection (stfi). | $7,000 | [6063466-CN](https://nearbypermits.com/seattle/permit/6063466-CN/) | ## Within ¼ mi since May 1, 2026 42 permits in the circle. From our copy of the city's data (last 24 months). ### This block (250 to 1,000 ft), 24 permits | Date | Address | Distance | Type | Work | Cost | Permit | |---|---|---|---|---|---|---| | Oct 2, 2026 | [1201 2nd Ave](https://nearbypermits.com/seattle/address/1201-2nd-ave/) | 600 ft SE | Alteration or repair | Construct interior non-structural alterations to tenant space at 27th Floor of existing commercial building (Qaltrics Tower at 2+U) subject to field inspection (STFI) | $120,000 | [7165263-CN](https://nearbypermits.com/seattle/permit/7165263-CN/) | | Sep 23, 2026 | [1103 1st Ave](https://nearbypermits.com/seattle/address/1103-1st-ave/) | 840 ft SE | Alteration or repair | Construct tenant improvements for restaurant on ground floor of mixed-use building per plan | $50,000 | [7135199-CN](https://nearbypermits.com/seattle/permit/7135199-CN/) | | Sep 16, 2026 | [1201 2nd Ave](https://nearbypermits.com/seattle/address/1201-2nd-ave/) | 600 ft SE | Alteration or repair | Construct tenant improvement to level 14 of commercial office space subject to field inspection STFI. | $70,000 | [7162802-CN](https://nearbypermits.com/seattle/permit/7162802-CN/) | | Sep 10, 2026 | [1507 Western Ave](https://nearbypermits.com/seattle/address/1507-western-ave/) | 720 ft NW | Roofing | Re-roof of building down to existing vapor barrier and re-install new roofing of like kind. | $250,000 | [7162146-RR](https://nearbypermits.com/seattle/permit/7162146-RR/) | | Sep 8, 2026 | [1201 3rd Ave](https://nearbypermits.com/seattle/address/1201-3rd-ave/) | 760 ft E | Alteration or repair | Construct blanket permit tenant improvements to Ogletree Deakins on the 51st floor of existing commercial building per plan. | $1,012,678 | [7158473-BK](https://nearbypermits.com/seattle/permit/7158473-BK/) | | Aug 19, 2026 | [1426 Alaskan Way](https://nearbypermits.com/seattle/address/1426-alaskan-way/) | 620 ft W | Alteration or repair | Change of use from warehouse to a mixed use commercial building. Construct substantial alterations for same occupy per plans | $1,480,000 | [6980462-CN](https://nearbypermits.com/seattle/permit/6980462-CN/) | | Aug 18, 2026 | [1225 1st Ave](https://nearbypermits.com/seattle/address/1225-1st-ave/) | 460 ft SE | Alteration or repair | Construct interior alterations to restaurant space subject to field inspection STFI. | $488,950 | [7158335-CN](https://nearbypermits.com/seattle/permit/7158335-CN/) | | Aug 17, 2026 | [1427 1st Ave](https://nearbypermits.com/seattle/address/1427-1st-ave/) | 460 ft NW | Alteration or repair | Tenant improvement for coffee shop (Tamra) ground floor of existing mixed use building occupy per plan. | $40,000 | [7151087-CN](https://nearbypermits.com/seattle/permit/7151087-CN/) | | Aug 14, 2026 | [1301 4th Ave](https://nearbypermits.com/seattle/address/1301-4th-ave/) | 990 ft E | Alteration or repair | Construct blanket permit tenant improvements to Klinedinst Law on the 13th floor of existing commercial building per plan. | $39,490 | [7154263-BK](https://nearbypermits.com/seattle/permit/7154263-BK/) | | Aug 14, 2026 | [1101 Alaskan Way](https://nearbypermits.com/seattle/address/1101-alaskan-way/) | 980 ft S | Alteration or repair | Construct alterations and tenant improvements for retail space (Argosy Cruises) on the first floor of commercial building per plan. | $75,000 | [7094644-CN](https://nearbypermits.com/seattle/permit/7094644-CN/) | | Aug 5, 2026 | [1501 Pike Pl](https://nearbypermits.com/seattle/address/1501-pike-pl/) | 710 ft NW | Alteration or repair | Alteration to utility sink at [PIKE PLACE MARKET] Subject To Field Inspection. | $15,000 | [7155225-CN](https://nearbypermits.com/seattle/permit/7155225-CN/) | | Aug 4, 2026 | [1221 1st Ave](https://nearbypermits.com/seattle/address/1221-1st-ave/) | 460 ft SE | Roofing | Re-roof of multiple roof faucets. Remove existing and install vapor retarder over concrete deck average R-30 adhered roof insulation with 0.25/12 taper self-adhering base sheet torch down cap sheet. | $650,000 | [7156537-RR](https://nearbypermits.com/seattle/permit/7156537-RR/) | | Aug 4, 2026 | [1201 2nd Ave](https://nearbypermits.com/seattle/address/1201-2nd-ave/) | 600 ft SE | Alteration or repair | Construct blanket permit tenant improvements to Laird Norton on the 14th floor of existing commercial building per plan. | $410,815 | [7153138-BK](https://nearbypermits.com/seattle/permit/7153138-BK/) | | Aug 4, 2026 | [1201 3rd Ave](https://nearbypermits.com/seattle/address/1201-3rd-ave/) | 760 ft E | Alteration or repair | Construct interior alterations for partial floor office tenant space (Egon Zehnder) at Floor 49 of existing commercial building per plan. | $585,000 | [7139485-CN](https://nearbypermits.com/seattle/permit/7139485-CN/) | | Jul 30, 2026 | [1201 2nd Ave](https://nearbypermits.com/seattle/address/1201-2nd-ave/) | 600 ft SE | Alteration or repair | Construct tenant improvements in commercial building on Level 30 (Anduril) occupy per plan. | $100,000 | [7144588-CN](https://nearbypermits.com/seattle/permit/7144588-CN/) | | Jul 28, 2026 | [1201 3rd Ave](https://nearbypermits.com/seattle/address/1201-3rd-ave/) | 760 ft E | Alteration or repair | Construct blanket permit tenant improvements to O'Hagan Meyer on the eighth floor of existing commercial building per plan. | $180,000 | [7148047-BK](https://nearbypermits.com/seattle/permit/7148047-BK/) | | Jul 16, 2026 | [1201 Western Ave](https://nearbypermits.com/seattle/address/1201-western-ave/) | 600 ft S | Alteration or repair | [Change of use to indoor sports and recreation per land use code.] Tenant improvement at ground floor (Ste. 120) for indoor mini-golf course occupy per plan. | $200,000 | [7122394-CN](https://nearbypermits.com/seattle/permit/7122394-CN/) | | Jul 13, 2026 | [1501 Pike Pl](https://nearbypermits.com/seattle/address/1501-pike-pl/) | 710 ft NW | Alteration or repair | Construct alterations to portion of Pike Place Market to combine (3) tenant spaces into a single space per plans Separate permit(s) required to occupy this new tenant space | $20,000 | [7141832-CN](https://nearbypermits.com/seattle/permit/7141832-CN/) | | Jul 7, 2026 | [1301 2nd Ave](https://nearbypermits.com/seattle/address/1301-2nd-ave/) | 350 ft E | Alteration or repair | Tenant improvements at level 1 (coat check) of existing art museum (Seattle Art Museum) subject to field inspection. | $166,597 | [7148391-CN](https://nearbypermits.com/seattle/permit/7148391-CN/) | | Jul 7, 2026 | [1300 1st Ave](https://nearbypermits.com/seattle/address/1300-1st-ave/) | 350 ft E | Alteration or repair | Construct alterations to south lobby of existing commercial building (Seattle Art Museum) per plan | $74,331 | [7112517-CN](https://nearbypermits.com/seattle/permit/7112517-CN/) | | Jun 23, 2026 | [1109 2nd Ave](https://nearbypermits.com/seattle/address/1109-2nd-ave/) | 760 ft SE | Alteration or repair | Blanket permit tenant improvements for SONOS in Suite 1500 of existing commercial building per plan. | $203,000 | [7142419-BK](https://nearbypermits.com/seattle/permit/7142419-BK/) | | Jun 23, 2026 | [1300 1st Ave](https://nearbypermits.com/seattle/address/1300-1st-ave/) | 350 ft E | Alteration or repair | Construct tenant improvements to existing commercial building (Seattle Art Museum) at Level 2 occupy per plan. Mechanical Included. | $500,000 | [7136952-CN](https://nearbypermits.com/seattle/permit/7136952-CN/) | | Jun 2, 2026 | [1301 4th Ave](https://nearbypermits.com/seattle/address/1301-4th-ave/) | 990 ft E | Alteration or repair | Construct blanket permit tenant improvements to Capstone Accounting & Tax on the 14th floor of existing commercial building per plan. | $50,000 | [7134466-BK](https://nearbypermits.com/seattle/permit/7134466-BK/) | | May 20, 2026 | [1300 1st Ave](https://nearbypermits.com/seattle/address/1300-1st-ave/) | 350 ft E | Alteration or repair | Construct tenant improvements to portions of SAM subject to field inspection (STFI | $524,406 | [7143840-CN](https://nearbypermits.com/seattle/permit/7143840-CN/) | ### Farther (1,000 ft to ¼ mi), 18 permits | Date | Address | Distance | Type | Work | Cost | Permit | |---|---|---|---|---|---|---| | Sep 18, 2026 | [1916 Pike Pl](https://nearbypermits.com/seattle/address/1916-pike-pl/) | 0.24 mi NW | Alteration or repair | Construct alterations to existing retail space for new tenant (Bounty of the Salish Sea) and occupy per plan. | $74,999 | [7157907-CN](https://nearbypermits.com/seattle/permit/7157907-CN/) | | Sep 2, 2026 | [1011 Western Ave](https://nearbypermits.com/seattle/address/1011-western-ave/) | 0.21 mi S | Alteration or repair | Construct blanket permit tenant improvements to future tenant on the seventh floor of existing commercial building per plan. | $350,000 | [7157546-BK](https://nearbypermits.com/seattle/permit/7157546-BK/) | | Aug 19, 2026 | [1015 2nd Ave](https://nearbypermits.com/seattle/address/1015-2nd-ave/) | 0.21 mi SE | Alteration or repair | Construct blanket permit tenant improvements to future tenant on the eighth and ninth floors of existing commercial building per plan. | $180,000 | [7155637-BK](https://nearbypermits.com/seattle/permit/7155637-BK/) | | Aug 17, 2026 | [1501 4th Ave](https://nearbypermits.com/seattle/address/1501-4th-ave/) | 0.21 mi NE | Alteration or repair | Construct tenant improvements in commercial building [Century Square] concourse for Donburi House subject to field inspection (STFI) | $25,000 | [7158398-CN](https://nearbypermits.com/seattle/permit/7158398-CN/) | | Jul 29, 2026 | [1000 2nd Ave](https://nearbypermits.com/seattle/address/1000-2nd-ave/) | 0.23 mi SE | Alteration or repair | Construct tenant improvement to existing office space subject to field inspection STFI. | $206,356 | [7155259-CN](https://nearbypermits.com/seattle/permit/7155259-CN/) | | Jul 28, 2026 | [1601 2nd Ave](https://nearbypermits.com/seattle/address/1601-2nd-ave/) | 0.21 mi N | Alteration or repair | Construct blanket permit tenant improvements for Ankrom Moisan on the seventh floor of existing commercial building per plan. | $500,000 | [7145081-BK](https://nearbypermits.com/seattle/permit/7145081-BK/) | | Jul 23, 2026 | [1215 4th Ave](https://nearbypermits.com/seattle/address/1215-4th-ave/) | 0.21 mi E | Alteration or repair | Construct alterations to ground level lobby of existing office building per plan. | $754,000 | [7112847-CN](https://nearbypermits.com/seattle/permit/7112847-CN/) | | Jul 2, 2026 | [1501 4th Ave](https://nearbypermits.com/seattle/address/1501-4th-ave/) | 0.21 mi NE | Alteration or repair | Construct non structural tenant improvement to existing office space subject to field inspection STFI. | $37,000 | [7151167-CN](https://nearbypermits.com/seattle/permit/7151167-CN/) | | Jul 2, 2026 | [1501 4th Ave](https://nearbypermits.com/seattle/address/1501-4th-ave/) | 0.21 mi NE | Alteration or repair | Construct non structural tenant improvement to office space subject to field inspection STFI. | $41,000 | [7151164-CN](https://nearbypermits.com/seattle/permit/7151164-CN/) | | Jul 2, 2026 | [1501 4th Ave](https://nearbypermits.com/seattle/address/1501-4th-ave/) | 0.21 mi NE | Alteration or repair | Construct tenant improvements at 20th floor tenant space in commercial office building [CENTURY SQUARE] subject to field inspection [STFI]. | $39,000 | [7151057-CN](https://nearbypermits.com/seattle/permit/7151057-CN/) | | Jun 26, 2026 | [1301 5th Ave](https://nearbypermits.com/seattle/address/1301-5th-ave/) | 0.23 mi NE | Alteration or repair | Blanket permit tenant improvements for MILLIMAN on floors 36-39 of existing commercial building per plan. | $150,000 | [7142360-BK](https://nearbypermits.com/seattle/permit/7142360-BK/) | | Jun 2, 2026 | [401 Union St](https://nearbypermits.com/seattle/address/401-union-st/) | 0.22 mi NE | Alteration or repair | Construct blanket permit tenant improvements to PACIFICA LAW GROUP on Floor 16 of existing commercial building per plan. | $300,000 | [7141836-BK](https://nearbypermits.com/seattle/permit/7141836-BK/) | | Jun 1, 2026 | [1301 5th Ave](https://nearbypermits.com/seattle/address/1301-5th-ave/) | 0.23 mi NE | Alteration or repair | Construct blanket permit tenant improvements to Perkins & Will on floors 12 & 23 of existing commercial building per plan. | $540,000 | [7136812-BK](https://nearbypermits.com/seattle/permit/7136812-BK/) | | May 26, 2026 | [1501 4th Ave](https://nearbypermits.com/seattle/address/1501-4th-ave/) | 0.21 mi NE | Alteration or repair | Construct interior tenant improvement to existing commercial space subject to field inspection STFI. | $40,000 | [7144346-CN](https://nearbypermits.com/seattle/permit/7144346-CN/) | | May 19, 2026 | [1530 3rd Ave](https://nearbypermits.com/seattle/address/1530-3rd-ave/) | 0.23 mi N | Alteration or repair | Construct tenant improvement to existing commercial space (McDonald's) subject to field inspection(STFI). | $100,000 | [7142867-CN](https://nearbypermits.com/seattle/permit/7142867-CN/) | | May 19, 2026 | [1301 5th Ave](https://nearbypermits.com/seattle/address/1301-5th-ave/) | 0.23 mi NE | Alteration or repair | Construct tenant improvements to the north central portion at Levels 37 & 39 of exiting office building (Rainier Tower) and occupy per plan | $200,640 | [7108557-CN](https://nearbypermits.com/seattle/permit/7108557-CN/) | | May 16, 2026 | [68 Madison St](https://nearbypermits.com/seattle/address/68-madison-st/) | 0.21 mi S | Alteration or repair | Change use from general retail sales and service to restaurant per land use code. Construct tenant improvements for restaurant (Westman's Bagel and Coffee) at south end ground level of existing mixed-use building occupy per plan. | $59,802 | [7132196-CN](https://nearbypermits.com/seattle/permit/7132196-CN/) | | May 5, 2026 | [1301 5th Ave](https://nearbypermits.com/seattle/address/1301-5th-ave/) | 0.23 mi NE | Alteration or repair | Construct blanket permit tenant improvements to Milliman on floors 36-39 of existing commercial building per plan. | $3,600,000 | [7126559-BK](https://nearbypermits.com/seattle/permit/7126559-BK/) | ## More on this street Other addresses on Union St with permits, nearest house number first: - [110 Union St](https://nearbypermits.com/seattle/address/110-union-st/): newest permit Mar 27, 2025 - [401 Union St](https://nearbypermits.com/seattle/address/401-union-st/): newest permit Jun 2, 2026 - [601 Union St](https://nearbypermits.com/seattle/address/601-union-st/): newest permit Sep 23, 2026 - [800 Union St](https://nearbypermits.com/seattle/address/800-union-st/): newest permit Sep 30, 2026 - [903 Union St](https://nearbypermits.com/seattle/address/903-union-st/): 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 2026-10-07 23:47 UTC. Nearby Permits, https://nearbypermits.com. JSON API and MCP server: https://nearbypermits.com/developers/ Map, all 11 permits at this address and 42 nearby: https://nearbypermits.com/seattle/address/99-union-st/