# Building permits at 110 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.

17 permits on record here. The newest, Mar 27, 2025: Construct blanket permit tenant improvements to Pando Capital on the second floor of existing commercial. Within a quarter mile, the city has issued 43 more permits since May 1.

## At this address

| Date | Type | Work | Cost | Permit |
|---|---|---|---|---|
| Mar 27, 2025 | Alteration or repair | Construct blanket permit tenant improvements to Pando Capital on the second floor of existing commercial building per plan. | $588,850 | [7075558-BK](https://nearbypermits.com/seattle/permit/7075558-BK/) |
| Sep 22, 2023 | Alteration or repair | Construct voluntary seismic improvements throughout existing commercial building per plan | $1,125,000 | [6959133-CN](https://nearbypermits.com/seattle/permit/6959133-CN/) |
| Mar 30, 2023 | Alteration or repair | Construct blanket permit tenant improvements to future tenant on the second floor of existing commercial building per plan. | $300,000 | [6954529-BK](https://nearbypermits.com/seattle/permit/6954529-BK/) |
| Mar 14, 2023 | Roofing | Roofing Recover over existing insulated built up roofing using cover board + 3 ply heat fused membrane - replace all roofing related sheet metal flashing and counter flashing | $662,264 | [6953112-RR](https://nearbypermits.com/seattle/permit/6953112-RR/) |
| Jul 3, 2019 | Alteration or repair | Construct alterations to an existing commercial building at the rooftop level minor communications antenna facility (Sprint) and at equipment room per plan. | $20,000 | [6727623-CN](https://nearbypermits.com/seattle/permit/6727623-CN/) |
| Jan 31, 2019 | Alteration or repair | Construct alterations to an existing rooftop minor communications antenna facility (SPRINT) per plans. | $20,000 | [6690838-CN](https://nearbypermits.com/seattle/permit/6690838-CN/) |
| Aug 28, 2014 | Alteration or repair | Construct interior non-structural alterations to 2nd floor for CPXi offices per plan and subject to field inspection | $65,000 | [6434212-CN](https://nearbypermits.com/seattle/permit/6434212-CN/) |
| Apr 2, 2013 | Alteration or repair | Remove existing elec panel and replace with (n) 2000A Panel Remove (6) existing panel antennas Install (3) New panel antennas ( 1 per sector)Remove (1) Battery cabinet Remove (1) Modcell cabinet Install (1) New MMBS cabinet Install (1) New BBU cabinet Install (1) New fiber Junction box Remove all ex | $20,000 | [6336090-CN](https://nearbypermits.com/seattle/permit/6336090-CN/) |
| Feb 1, 2013 | Alteration or repair | Replace existing spiral convenience stair between floors 4 and 5 with new stair and landing in same location per plan. | $60,000 | [6345182-CN](https://nearbypermits.com/seattle/permit/6345182-CN/) |
| Jan 25, 2013 | Alteration or repair | Non-structural tenant improvement to existing office space on floors 4 and 5 per plan. | $275,000 | [6348513-CN](https://nearbypermits.com/seattle/permit/6348513-CN/) |
| Nov 9, 2011 | Alteration or repair | Construct alterations to existing commercial building for the 3rd floor restrooms subject to field inspection (STFI)/per plan. | $20,000 | [6301600-CN](https://nearbypermits.com/seattle/permit/6301600-CN/) |
| Jul 29, 2011 | Alteration or repair | Construct alterations to lobby of existing office building per plans. | $8,663 | [6270931-CN](https://nearbypermits.com/seattle/permit/6270931-CN/) |
| Jun 8, 2010 | Alteration or repair | Tenant improvements to southeast portion of 5th floor for T-Mobile subject to field inspection | $57,692 | [6251275-CN](https://nearbypermits.com/seattle/permit/6251275-CN/) |
| Dec 3, 2008 | Alteration or repair | Closed as incomplete - expired permit. Soft demo and construct tenant improvements to entire 3rd floor of existing commercial office building per plan. | $375,000 | [6201448-CN](https://nearbypermits.com/seattle/permit/6201448-CN/) |
| Jul 29, 2008 | Alteration or repair | Minor tenant improvements to the 2nd and 4th floor (both Paladino Officespace) in the Harold Poll Building per floor plan and STFI. | $168,000 | [6189503-CN](https://nearbypermits.com/seattle/permit/6189503-CN/) |
| Jun 2, 2008 | Alteration or repair | Partial 4th floor office tenant improvements in existing comm bldg / STFI | $50,000 | [6182689-CN](https://nearbypermits.com/seattle/permit/6182689-CN/) |
| Sep 13, 2007 | Addition | Office tenent improvements (T-Mobile)including spiral stair addition on 4th and 5th floors of existing comm bldg per plan | $350,000 | [6147414-CN](https://nearbypermits.com/seattle/permit/6147414-CN/) |

## Within ¼ mi since May 1, 2026

43 permits in the circle. From our copy of the city's data (last 24 months).

### This block (250 to 1,000 ft), 30 permits

| Date | Address | Distance | Type | Work | Cost | Permit |
|---|---|---|---|---|---|---|
| Oct 2, 2026 | [1201 2nd Ave](https://nearbypermits.com/seattle/address/1201-2nd-ave/) | 740 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 16, 2026 | [1201 2nd Ave](https://nearbypermits.com/seattle/address/1201-2nd-ave/) | 740 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/) | 660 ft W | 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/) | 800 ft SE | 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/) | 660 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/) | 700 ft S | 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 | [1501 4th Ave](https://nearbypermits.com/seattle/address/1501-4th-ave/) | 830 ft 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/) |
| Aug 17, 2026 | [1427 1st Ave](https://nearbypermits.com/seattle/address/1427-1st-ave/) | 310 ft W | 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/) | 900 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 5, 2026 | [1501 Pike Pl](https://nearbypermits.com/seattle/address/1501-pike-pl/) | 580 ft W | 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/) | 700 ft S | 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/) | 740 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/) | 800 ft SE | 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/) | 740 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/) | 800 ft SE | 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 28, 2026 | [1601 2nd Ave](https://nearbypermits.com/seattle/address/1601-2nd-ave/) | 850 ft NW | 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 16, 2026 | [1201 Western Ave](https://nearbypermits.com/seattle/address/1201-western-ave/) | 900 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/) | 580 ft W | 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/) | 430 ft SE | 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/) | 430 ft SE | 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/) |
| Jul 2, 2026 | [1501 4th Ave](https://nearbypermits.com/seattle/address/1501-4th-ave/) | 830 ft 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/) | 830 ft 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/) | 830 ft 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 23, 2026 | [1109 2nd Ave](https://nearbypermits.com/seattle/address/1109-2nd-ave/) | 940 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/) | 430 ft SE | 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 | [401 Union St](https://nearbypermits.com/seattle/address/401-union-st/) | 950 ft E | 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 2, 2026 | [1301 4th Ave](https://nearbypermits.com/seattle/address/1301-4th-ave/) | 900 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 26, 2026 | [1501 4th Ave](https://nearbypermits.com/seattle/address/1501-4th-ave/) | 830 ft 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 20, 2026 | [1300 1st Ave](https://nearbypermits.com/seattle/address/1300-1st-ave/) | 430 ft SE | 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/) |
| May 19, 2026 | [1530 3rd Ave](https://nearbypermits.com/seattle/address/1530-3rd-ave/) | 920 ft 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/) |

### Farther (1,000 ft to ¼ mi), 13 permits

| Date | Address | Distance | Type | Work | Cost | Permit |
|---|---|---|---|---|---|---|
| Sep 23, 2026 | [1103 1st Ave](https://nearbypermits.com/seattle/address/1103-1st-ave/) | 0.20 mi 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 18, 2026 | [1916 Pike Pl](https://nearbypermits.com/seattle/address/1916-pike-pl/) | 0.21 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/) |
| Aug 19, 2026 | [1015 2nd Ave](https://nearbypermits.com/seattle/address/1015-2nd-ave/) | 0.24 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 14, 2026 | [1101 Alaskan Way](https://nearbypermits.com/seattle/address/1101-alaskan-way/) | 0.24 mi 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/) |
| Jul 24, 2026 | [1913 2nd Ave](https://nearbypermits.com/seattle/address/1913-2nd-ave/) | 0.21 mi NW | Fence, wall or deck | Construct alterations to install security gate/fence at entrance to existing restaurant (We rise Wine) at ground level of Viktoria Apartments per plan. | $5,500 | [7137118-CN](https://nearbypermits.com/seattle/permit/7137118-CN/) |
| Jul 23, 2026 | [1215 4th Ave](https://nearbypermits.com/seattle/address/1215-4th-ave/) | 0.20 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/) |
| Jun 26, 2026 | [1301 5th Ave](https://nearbypermits.com/seattle/address/1301-5th-ave/) | 0.20 mi E | 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 1, 2026 | [1301 5th Ave](https://nearbypermits.com/seattle/address/1301-5th-ave/) | 0.20 mi E | 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 28, 2026 | [415 Pine St](https://nearbypermits.com/seattle/address/415-pine-st/) | 0.24 mi NE | Alteration or repair | Construct alterations to commercial space subject to field inspection STFI. | $102,000 | [7139646-CN](https://nearbypermits.com/seattle/permit/7139646-CN/) |
| May 28, 2026 | [425 Pike St](https://nearbypermits.com/seattle/address/425-pike-st/) | 0.21 mi NE | Alteration or repair | Construct alterations to existing commercial building at level 1 per plan. | $120,000 | [7131671-CN](https://nearbypermits.com/seattle/permit/7131671-CN/) |
| May 26, 2026 | [300 Pine St](https://nearbypermits.com/seattle/address/300-pine-st/) | 0.22 mi N | Alteration or repair | Construct interior non-structural alterations for 4th floor tenant space [E-BIKE SMART FACTORY] in commercial building [BON MARCHE] subject to field inspection [STFI]. | $600,000 | [7144530-CN](https://nearbypermits.com/seattle/permit/7144530-CN/) |
| May 19, 2026 | [1301 5th Ave](https://nearbypermits.com/seattle/address/1301-5th-ave/) | 0.20 mi E | 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 5, 2026 | [1301 5th Ave](https://nearbypermits.com/seattle/address/1301-5th-ave/) | 0.20 mi E | 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:

- [99 Union St](https://nearbypermits.com/seattle/address/99-union-st/): newest permit Sep 9, 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

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Source: Seattle Department of Construction and Inspections permit data (https://cos-data.seattle.gov/d/76t5-zqzr), City of Seattle. Checked 2026-10-07 10:12 UTC. Nearby Permits, https://nearbypermits.com. JSON API and MCP server: https://nearbypermits.com/developers/

Map, all 17 permits at this address and 43 nearby: https://nearbypermits.com/seattle/address/110-union-st/