# Building permits at 800 Union St, Seattle, WA

The biggest project within a quarter mile since May 1: a $4.8M alteration or repair at 600 University St, permitted Jul 8.

96 permits on record here. The newest, Sep 30: Construct blanket permit tenant improvements to the Consulate General of Japan in Seattle on the tenth floor. Within a quarter mile, the city has issued 42 more permits (41 projects) since May 1.

## At this address

| Date | Type | Work | Cost | Permit |
|---|---|---|---|---|
| Sep 30, 2026 | 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/) |
| Aug 13, 2026 | 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 | 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/) |
| Jul 23, 2026 | 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/) |
| Jan 14, 2026 | Alteration or repair | Interior improvements at level 600 of seattle convention center arch building. Interior work includes demo and replacement of non-structural fire rated partitions. Installation of new fire rated partition storefront and double door. New interior casework ceiling assembly and finishes.no change to ex | $500,000 | [7117830-CN](https://nearbypermits.com/seattle/permit/7117830-CN/) |
| Jun 11, 2025 | Alteration or repair | Construct blanket permit tenant improvements to Angeli & Calfo on the 16th floor of existing commercial building per plan. | $135,100 | [7080956-BK](https://nearbypermits.com/seattle/permit/7080956-BK/) |
| Aug 1, 2024 | Alteration or repair | Construct blanket permit tenant improvements to future tenant on the 16th floor of existing commercial building per plan. | $50,000 | [7020929-BK](https://nearbypermits.com/seattle/permit/7020929-BK/) |
| Jul 26, 2024 | Alteration or repair | Construct blanket permit tenant improvements to future tenant on the 11th floor of existing commercial building per plan. | $50,000 | [7020928-BK](https://nearbypermits.com/seattle/permit/7020928-BK/) |
| Mar 18, 2024 | Alteration or repair | Construct blanket permit tenant improvements to future tenant on the 16th floor of existing commercial building per plan. | $143,454 | [7010691-BK](https://nearbypermits.com/seattle/permit/7010691-BK/) |
| Jan 24, 2024 | Alteration or repair | Construct blanket permit tenant improvements to future tenant on the 18th floor of existing commercial building per plan. | $68,500 | [7003078-BK](https://nearbypermits.com/seattle/permit/7003078-BK/) |
| Dec 22, 2023 | Alteration or repair | Construct blanket permit tenant improvements to future tenant on the 17th floor of existing commercial building per plan. | $221,619 | [6998441-BK](https://nearbypermits.com/seattle/permit/6998441-BK/) |
| Dec 22, 2023 | Alteration or repair | Construct blanket permit tenant improvements to future tenant on the 16th floor of existing commercial building per plan. | $199,636 | [6998437-BK](https://nearbypermits.com/seattle/permit/6998437-BK/) |
| Dec 14, 2023 | Alteration or repair | Construct blanket permit tenant improvements to future tenant on the 19th floor of existing commercial building per plan. | $23,800 | [6999093-BK](https://nearbypermits.com/seattle/permit/6999093-BK/) |
| Sep 12, 2023 | Alteration or repair | Construct blanket permit tenant improvements to future tenant on the 11th floor of existing commercial building per plan. | $203,756 | [6980493-BK](https://nearbypermits.com/seattle/permit/6980493-BK/) |
| Apr 7, 2023 | Alteration or repair | Construct blanket permit tenant improvements to future tenant on the 21st floor of existing commercial building per plan. | $50,000 | [6945361-BK](https://nearbypermits.com/seattle/permit/6945361-BK/) |
| Mar 28, 2023 | Alteration or repair | Construct blanket permit tenant improvements for office tenant on the eleventh floor of existing commercial building per plan. | $403,953 | [6936080-BK](https://nearbypermits.com/seattle/permit/6936080-BK/) |
| Mar 14, 2023 | Alteration or repair | Tenant Improvement to existing office space on 21st floor subject to field inspection STFI. | $83,500 | [6938951-CN](https://nearbypermits.com/seattle/permit/6938951-CN/) |
| Jun 27, 2022 | Alteration or repair | Construct blanket permit tenant improvements for Lee Smart on Floor 18 of existing commercial building per plan. | $775,000 | [6899906-BK](https://nearbypermits.com/seattle/permit/6899906-BK/) |
| Jun 27, 2022 | Alteration or repair | Construct blanket permit tenant improvements to Floor 18 of existing commercial building per plan. | $50,000 | [6898759-BK](https://nearbypermits.com/seattle/permit/6898759-BK/) |
| Mar 11, 2022 | Alteration or repair | Blanket permit tenant improvements to office space for unnamed tenant on the 13th floor per plans. | $450,000 | [6878666-BK](https://nearbypermits.com/seattle/permit/6878666-BK/) |
| Jul 28, 2021 | Alteration or repair | Blanket permit tenant improvements to existing office space for office tenant on the 21st floor per plans. | $106,000 | [6844881-BK](https://nearbypermits.com/seattle/permit/6844881-BK/) |
| Jul 8, 2021 | Alteration or repair | Blanket permit tenant improvements to office space for HPG on the 20th floor per plans. | $400,000 | [6840298-BK](https://nearbypermits.com/seattle/permit/6840298-BK/) |
| Dec 7, 2020 | Alteration or repair | Blanket permit for tenant improvements to Washington Institute for Coagulation existing office space on the 19th floor per plans. | $1,000,000 | [6805777-BK](https://nearbypermits.com/seattle/permit/6805777-BK/) |
| Jun 24, 2020 | Alteration or repair | Blanket permit tenant improvements to existing office space (Betts Patterson Mines Attorney) on the 14th floor per plans. | $1,100,000 | [6783529-BK](https://nearbypermits.com/seattle/permit/6783529-BK/) |
| Jun 10, 2020 | Alteration or repair | Blanket permit tenant improvements to existing office space (Avalyn Pharma) and (AFRCT Law LLC) on the 15th floor per plan. | $111,980 | [6783789-BK](https://nearbypermits.com/seattle/permit/6783789-BK/) |
| Feb 12, 2020 | Alteration or repair | Change of use from commercial to restaurant in 17 and construct alterations to suites 16 & 17 occupy per plans. | $120,000 | [6755948-CN](https://nearbypermits.com/seattle/permit/6755948-CN/) |
| Jan 31, 2020 | Alteration or repair | Blanket permit tenant improvements to existing office space for 'Here Technologies' on the 7th floor per plans. | $35,000 | [6768133-BK](https://nearbypermits.com/seattle/permit/6768133-BK/) |
| Apr 8, 2019 | Alteration or repair | Construct interior nonstructural alterations for office tenant (Oppenheimer) at SE portion of 21st floor per plans. | $109,500 | [6716083-BK](https://nearbypermits.com/seattle/permit/6716083-BK/) |
| Dec 3, 2018 | Alteration or repair | Construct interior non-structural alterations to existing office space for STIB Law Firm on the 15th floor per plans. | $125,689 | [6699071-BK](https://nearbypermits.com/seattle/permit/6699071-BK/) |
| Nov 1, 2017 | Alteration or repair | Tenant improvements to existing retail tenant space and occupy as video studio per plans. | $25,000 | [6595760-CN](https://nearbypermits.com/seattle/permit/6595760-CN/) |
| Jan 11, 2017 | Alteration or repair | Blanket Permit for interior non-structural alterations to the 16th floor. For Markets Schroeder per plans. | Not listed | [6570816-BK](https://nearbypermits.com/seattle/permit/6570816-BK/) |
| Jul 26, 2016 | Alteration or repair | Blanket Permit for interior non-structural alterations to 7th floor of existing office space (Accolade) per plans. | Not listed | [6538351-BK](https://nearbypermits.com/seattle/permit/6538351-BK/) |
| Jan 11, 2016 | Alteration or repair | Blanket Permit for interior non-structural alterations. TI on 17th floor for Oles Morrison Rinker & Baker LLP | Not listed | [6508106-BK](https://nearbypermits.com/seattle/permit/6508106-BK/) |
| Jan 8, 2016 | Alteration or repair | Blanket Permit for interior non-structural alterations to the 21st floor. For ICBC per plans. | Not listed | [6506588-BK](https://nearbypermits.com/seattle/permit/6506588-BK/) |
| Nov 23, 2015 | Alteration or repair | Blanket Permit for interior non-structural alterations to office tenant (GTT) on the 11th floor | Not listed | [6500813-BK](https://nearbypermits.com/seattle/permit/6500813-BK/) |
| Nov 23, 2015 | Alteration or repair | Blanket Permit for interior non-structural alterations. 11th floor office (Bldg. Management) per plans. | Not listed | [6500811-BK](https://nearbypermits.com/seattle/permit/6500811-BK/) |
| Nov 17, 2015 | Alteration or repair | Blanket Permit for interior non-structural alterations for tenant BINW. 21st floor | Not listed | [6495624-BK](https://nearbypermits.com/seattle/permit/6495624-BK/) |
| Oct 19, 2015 | Alteration or repair | Blanket Permit for interior non-structural alterations for tenant (BETTS PATTERSON & MINES) on 15th floor per plan | Not listed | [6495152-BK](https://nearbypermits.com/seattle/permit/6495152-BK/) |
| Jul 2, 2015 | Alteration or repair | Construct alterations to remove existing convenience stair at level 20 of existing commercial building and infill floor per plan | $35,000 | [6469039-CN](https://nearbypermits.com/seattle/permit/6469039-CN/) |
| Apr 14, 2015 | Alteration or repair | Blanket Permit for interior non-structural alterations to the 20th floor. For (NOKIA HERE) per plans. | Not listed | [6464372-BK](https://nearbypermits.com/seattle/permit/6464372-BK/) |
| Jun 17, 2014 | Alteration or repair | Blanket Permit for interior non-structural alterations to the 11th floor. For (michael & alexander pllc per plans. | Not listed | [6418573-BK](https://nearbypermits.com/seattle/permit/6418573-BK/) |
| May 1, 2014 | Alteration or repair | Contruct TI to existing "B" restaurant (Suite 13) per floor plan subject to field inspection (STFI) | $85,000 | [6412037-CN](https://nearbypermits.com/seattle/permit/6412037-CN/) |
| Oct 14, 2013 | Alteration or repair | Alteration to coridor 378 on third floor for Washington State Convention Center per plan | $100,000 | [6378280-CN](https://nearbypermits.com/seattle/permit/6378280-CN/) |
| Sep 11, 2013 | Alteration or repair | Blanket Permit for interior non-structural non-structural alterations to 16th floor for Lee & Hayes Expansion per plan. | Not listed | [6368716-BK](https://nearbypermits.com/seattle/permit/6368716-BK/) |
| Aug 2, 2013 | Alteration or repair | Blanket Permit for interior non-structural alterations to 9th floor for Hewlett-Packard company per plans | Not listed | [6370994-BK](https://nearbypermits.com/seattle/permit/6370994-BK/) |
| Jun 5, 2013 | Alteration or repair | Blanket Permit for interior non-structural alterations to the 10th floor. For Washington Partners per plans. | Not listed | [6366948-BK](https://nearbypermits.com/seattle/permit/6366948-BK/) |
| May 1, 2013 | Alteration or repair | Blanket Permit for interior non-structural alterations to the 16th floor. For (deutsche asset & wealth management) per plans. | Not listed | [6359421-BK](https://nearbypermits.com/seattle/permit/6359421-BK/) |
| Feb 14, 2013 | Alteration or repair | Blanket Permit for interior non-structural alterations to the 21st floor tenant name is "Oppenheimer" per plan. | Not listed | [6349248-BK](https://nearbypermits.com/seattle/permit/6349248-BK/) |
| Jun 7, 2012 | Alteration or repair | Blanket Permit for interior non-structural alterations to the 10th floor. For an Administrative Permit per plans. | Not listed | [6320922-BK](https://nearbypermits.com/seattle/permit/6320922-BK/) |
| May 17, 2012 | Other | Closed as incomplete - expired permit. Installation of temporary trade show booth space 500 for Medical Library Association Expo at Washington State Convention & Trade Center 5/19/2012 - 5/22/2012 per plans | Not listed | [6320709-CN](https://nearbypermits.com/seattle/permit/6320709-CN/) |
| Jan 11, 2012 | Alteration or repair | Blanket Permit for interior non-structural alterations for the 10th floor | Not listed | [6305963-BK](https://nearbypermits.com/seattle/permit/6305963-BK/) |
| Dec 13, 2011 | Alteration or repair | Blanket Permit for interior non-structural alterations for Scheer & Zehnder Floor 22 | Not listed | [6303785-BK](https://nearbypermits.com/seattle/permit/6303785-BK/) |
| Aug 11, 2011 | Alteration or repair | Blanket Permit interior walls relites floor 15 (Allbee Romein) for interior non-structural alterations this permit. | Not listed | [6289140-BK](https://nearbypermits.com/seattle/permit/6289140-BK/) |
| Jul 18, 2011 | Alteration or repair | Blanket Permit for interior non-structural alterations in SE portion of 15th floor. | Not listed | [6286345-BK](https://nearbypermits.com/seattle/permit/6286345-BK/) |
| Mar 14, 2011 | Alteration or repair | Blanket Permit for interior non-structural alterations for 18th floor and part of sw 15th floor. | Not listed | [6272368-BK](https://nearbypermits.com/seattle/permit/6272368-BK/) |
| Dec 22, 2010 | Alteration or repair | Blanket Permit for interior non-structural alterations to 14th floor. | Not listed | [6262999-BK](https://nearbypermits.com/seattle/permit/6262999-BK/) |
| Jun 23, 2010 | Alteration or repair | Blanket Permit for interior non-structural alterations to the 21st floor. For (hitachi consulting) per plans. | Not listed | [6252265-BK](https://nearbypermits.com/seattle/permit/6252265-BK/) |
| Apr 7, 2010 | Alteration or repair | Closed as incomplete - expired permit. Erect temporary seating platforms and stage for SAS Global Forum from April 7 2010 through April 12 2010 in Exhibit Hall 4B per plans | $12,000 | [6244705-CN](https://nearbypermits.com/seattle/permit/6244705-CN/) |
| Dec 17, 2009 | Alteration or repair | Blanket Permit for interior non-structural alterations. For 16th floor tenant improvement new office buildout in office building per plan. | Not listed | [6234213-BK](https://nearbypermits.com/seattle/permit/6234213-BK/) |
| Dec 17, 2009 | Addition | Blanket Permit for interior non-structural alterations. For 17th floor addition of 1 partition and door to create storage room 1 new entry door new casework per plans. | Not listed | [6234212-BK](https://nearbypermits.com/seattle/permit/6234212-BK/) |
| Oct 15, 2009 | Alteration or repair | Closed as incomplete - expired permit. Temporay Structure Permit to erect a two level structure on level 4 of WA STATE Convention Center for special ASPS event from Oct 24 09 to Oct 26 09 per plan | Not listed | [6227385-CN](https://nearbypermits.com/seattle/permit/6227385-CN/) |
| Sep 25, 2009 | Other | Closed as incomplete - expired permit. Temporary permit-Erect two level KCI Exhibit Structure from October 22 to October 27 09 @4E/F of WA ST Convention Center (Show dates are from Oct 24 to Oct 26) per plan. | Not listed | [6225189-CN](https://nearbypermits.com/seattle/permit/6225189-CN/) |
| Jun 2, 2009 | Alteration or repair | Blanket Permit for interior non-structural alterations to 11th floor per plans. | Not listed | [6216959-BK](https://nearbypermits.com/seattle/permit/6216959-BK/) |
| Sep 12, 2008 | Other | Closed as Incomplete - Expired Permit Erect Temporary two level booth for QuadraMed Booth 329 South Hall AHIMA 2008 Convention Oct 13-15 2008 per plans. | Not listed | [6192221-CN](https://nearbypermits.com/seattle/permit/6192221-CN/) |
| Aug 24, 2008 | Other | Closed as Incomplete - Expired Permit Erect 2 level booth for "Cardone" Booth 311 South Hall for AHIMA 2008 convention Oct. 13-15 2008 per plans. | Not listed | [6185868-CN](https://nearbypermits.com/seattle/permit/6185868-CN/) |
| Jul 28, 2008 | Alteration or repair | Non-structural TI work to the 16th floor. | Not listed | [6186672-BK](https://nearbypermits.com/seattle/permit/6186672-BK/) |
| Apr 10, 2008 | Alteration or repair | Blanket Permit for interior non-structural alterations to floor P1 | Not listed | [6175436-BK](https://nearbypermits.com/seattle/permit/6175436-BK/) |
| Feb 21, 2008 | Other | Closed as Incomplete - Expired Permit Erect temporary two level booth for Charles River Labs Booth 2329 South Hall SOT Convention 3/16-20/2008 per plans. | Not listed | [6169854-CN](https://nearbypermits.com/seattle/permit/6169854-CN/) |
| Feb 14, 2008 | Alteration or repair | Blanket Permit for interior non-structural alterations to the 11th floor. | Not listed | [6168428-BK](https://nearbypermits.com/seattle/permit/6168428-BK/) |
| Oct 15, 2007 | Alteration or repair | Blanket Permit for interior non-structural alterations to the 16th floor. Lobby | Not listed | [6155809-BK](https://nearbypermits.com/seattle/permit/6155809-BK/) |
| Aug 24, 2007 | Alteration or repair | Closed as Incomplete - Expired Permit Erect temporary seating risers and control platform room 6A-B WSCTC 8/24/07-8/29/07 per plans. (Leasee responsible for structural integrity of temporary structure.) | Not listed | [6150644-CN](https://nearbypermits.com/seattle/permit/6150644-CN/) |
| Jun 22, 2007 | Other | Closed as Incomplete - Expired Permit Construct temporary stage for BMM Convention June 28-July 1 2007 room 4A WSCTC per plans. | Not listed | [6143450-CN](https://nearbypermits.com/seattle/permit/6143450-CN/) |
| Jun 11, 2007 | Other | Closed as Incomplete - Expired Permit Erect temporary two level booth for Countrywide Exhibit Booth 801 National Assoc. of Mortgage Brokers Annual Convention June/24-25/2007 per plans. | Not listed | [6142658-CN](https://nearbypermits.com/seattle/permit/6142658-CN/) |
| May 31, 2007 | Other | Closed as Incomplete - Expired Permit Erect temporary two level booth and tower unit for Merial Exhibit Booth 704 American College of Veterinary Internal Medicine Meeting June/6-9/2007 per plans. | Not listed | [6139373-CN](https://nearbypermits.com/seattle/permit/6139373-CN/) |
| Feb 20, 2007 | Other | Closed as Incomplete - Expired Permit Erect temporary two level booth for Angio Dynamics Exhibit Booth 1001 Society of Interventional Radiology Meeting 3/2-5/2007 per plans. | Not listed | [6125922-CN](https://nearbypermits.com/seattle/permit/6125922-CN/) |
| Jan 31, 2007 | Other | Closed as Incomplete - Expired Permit Erect temporary two level booth for Cook Medical Exhibit Booth 543 Society of Interventional Radiology Meeting 3/2-5/2007 per plans. | Not listed | [6125998-CN](https://nearbypermits.com/seattle/permit/6125998-CN/) |
| Jan 30, 2007 | Alteration or repair | Closed as Incomplete - Expired Permit Interior non-structural office TI at east portion of 9th floor subject to field inspection | $10,920 | [6127183-CN](https://nearbypermits.com/seattle/permit/6127183-CN/) |
| Jan 18, 2007 | Other | Closed as Incomplete - Expired Permit Erect temporary stage and scenic structure in rooms 4A & B for event on 2/5-9/07 per plans. | Not listed | [6125779-CN](https://nearbypermits.com/seattle/permit/6125779-CN/) |
| Jan 11, 2007 | Other | Closed as Incomplete - Expired Permit Erect temporary two level booth for EBSCO Information Services Exhibit Booth 2020 American Library Association Midwinter Meeting 1/19-22/2007. | Not listed | [6123716-CN](https://nearbypermits.com/seattle/permit/6123716-CN/) |
| Dec 4, 2006 | Other | Closed as Incomplete - Expired Permit Erect temporary two level booth for ProQuest Exhibit Booth 1615 American Library Association Midwinter Meeting 1/19-22/2007. | Not listed | [6121360-CN](https://nearbypermits.com/seattle/permit/6121360-CN/) |
| Nov 14, 2006 | Alteration or repair | Closed as Incomplete - Expired Permit Tenant improvement to offices and break room on the east side of the ninth floor of "One Convention Place" per STFI. | $12,500 | [6119676-CN](https://nearbypermits.com/seattle/permit/6119676-CN/) |
| Oct 25, 2006 | Alteration or repair | Blanket Permit for interior non-structural alterations to the 21st floor Trammel Crow | Not listed | [6108273-BK](https://nearbypermits.com/seattle/permit/6108273-BK/) |
| Sep 26, 2006 | Other | Erect temporary two level booth for Globus Medical Exhibit Booth 2030 North American Spine Society 9/27-29/2006. | Not listed | [6114059-CN](https://nearbypermits.com/seattle/permit/6114059-CN/) |
| Sep 26, 2006 | Other | Erect temporary two level booth for Blackstone Medical Exhibit Booth 739 North American Spine Society 9/27-29/2006. | Not listed | [6112909-CN](https://nearbypermits.com/seattle/permit/6112909-CN/) |
| Sep 25, 2006 | Other | Erect temporary two level booth for NuVasive Exhibit Booth 1830 North American Spine Society 9/27-29/2006. | Not listed | [6112911-CN](https://nearbypermits.com/seattle/permit/6112911-CN/) |
| Sep 23, 2006 | Other | Erect temporary two level booth for DePuy Exhibit Booth 1006 North American Spine Society 9/27-29/2006. | Not listed | [6112910-CN](https://nearbypermits.com/seattle/permit/6112910-CN/) |
| Sep 23, 2006 | Other | Erect temporary two level booth for K2M Exhibit Booth 2130 North American Spine Society 9/27-29/2006. | Not listed | [6112143-CN](https://nearbypermits.com/seattle/permit/6112143-CN/) |
| Sep 23, 2006 | Other | Erect temporary two level booth for Orthofix Exhibit Booth 2010 North American Spine Society 9/27-29/2006. | Not listed | [6111820-CN](https://nearbypermits.com/seattle/permit/6111820-CN/) |
| Sep 23, 2006 | Other | Erect temporary two level booth for Stryker Exhibit Booth 723 North American Spine Society 9/27-29/2006. | Not listed | [6111689-CN](https://nearbypermits.com/seattle/permit/6111689-CN/) |
| Aug 4, 2006 | Alteration or repair | Blanket Permit for interior non-structural alterations to the 10th floor Lifestyle Lifts | Not listed | [6103179-BK](https://nearbypermits.com/seattle/permit/6103179-BK/) |
| Aug 4, 2006 | Alteration or repair | Blanket Permit for interior non-structural alterations to Filament 22nd floor | Not listed | [6101563-BK](https://nearbypermits.com/seattle/permit/6101563-BK/) |
| Jul 18, 2006 | Other | Closed as Incomplete - Expired Permit Erect temporary stage and scenic structure in rooms 4A & B for event on July 24-28/06 per plans. | Not listed | [6104981-CN](https://nearbypermits.com/seattle/permit/6104981-CN/) |
| Apr 29, 2006 | Alteration or repair | Blanket Permit for interior non-structural alterations for the 22nd floor. Scheer & zhender | Not listed | [6092747-BK](https://nearbypermits.com/seattle/permit/6092747-BK/) |
| Nov 30, 2005 | Other | Erect temporary stage and scenic structure in rooms 4A & B for event on 1/6-13/06 per plans. | Not listed | [6079070-CN](https://nearbypermits.com/seattle/permit/6079070-CN/) |
| Oct 24, 2005 | Alteration or repair | Blanket Permit for interior non-structural alterations to the 12th & 13th floor Brown & Caldwell | Not listed | [6072447-BK](https://nearbypermits.com/seattle/permit/6072447-BK/) |
| Jul 27, 2005 | Other | Closed as Incomplete - Expired Permit Erect a temporary stage and scenic structure in rooms 4A & B for event on 8/1-5/2005 per plans. | Not listed | [6066797-CN](https://nearbypermits.com/seattle/permit/6066797-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), 34 permits

| Date | Address | Distance | Type | Work | Cost | Permit |
|---|---|---|---|---|---|---|
| Oct 2, 2026 | [520 Pike St](https://nearbypermits.com/seattle/address/520-pike-st/) | 840 ft 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 23, 2026 | [601 Union St](https://nearbypermits.com/seattle/address/601-union-st/) | 560 ft S | 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/) | 560 ft S | 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 21, 2026 | [906 Pine St](https://nearbypermits.com/seattle/address/906-pine-st/) | 810 ft N | 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 15, 2026 | [601 Union St](https://nearbypermits.com/seattle/address/601-union-st/) | 560 ft S | 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/) | 850 ft S | 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/) |
| Sep 14, 2026 | [1420 5th Ave](https://nearbypermits.com/seattle/address/1420-5th-ave/) | 900 ft SW | 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/) | 900 ft SW | 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 8, 2026 | [903 Union St](https://nearbypermits.com/seattle/address/903-union-st/) | 480 ft E | 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/) |
| Sep 2, 2026 | [520 Pike St](https://nearbypermits.com/seattle/address/520-pike-st/) | 840 ft 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 18, 2026 | [600 Pine St](https://nearbypermits.com/seattle/address/600-pine-st/) | 960 ft W | Alteration or repair | Construct tenant improvements to existing commercial building (Pacific Place) at 2nd level suite (suite 210) per plan. | $80,000 | [7147050-CN](https://nearbypermits.com/seattle/permit/7147050-CN/) |
| Aug 17, 2026 | [600 Pine St](https://nearbypermits.com/seattle/address/600-pine-st/) | 960 ft W | Alteration or repair | Construct tenant improvement to existing restaurant space (Suite 132) at Pacific Place per plan. | $40,000 | [7147765-CN](https://nearbypermits.com/seattle/permit/7147765-CN/) |
| Aug 14, 2026 | [600 Pine St](https://nearbypermits.com/seattle/address/600-pine-st/) | 960 ft W | Alteration or repair | Construct tenant improvements to existing commercial office space per STFI | $35,000 | [7145179-CN](https://nearbypermits.com/seattle/permit/7145179-CN/) |
| Aug 12, 2026 | [600 University St](https://nearbypermits.com/seattle/address/600-university-st/) | 850 ft S | 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 10, 2026 | [601 Pine St](https://nearbypermits.com/seattle/address/601-pine-st/) | 790 ft 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/) |
| Aug 7, 2026 | [601 Union St](https://nearbypermits.com/seattle/address/601-union-st/) | 560 ft S | 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/) | 560 ft S | 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 | [500 Pike St](https://nearbypermits.com/seattle/address/500-pike-st/) | 1,000 ft W | Alteration or repair | Allow gallery use in portion of existing landmark building per the land use code. Construct alterations to portions of commercial building for an art gallery occupy per plans | $209,811 | [7146314-CN](https://nearbypermits.com/seattle/permit/7146314-CN/) |
| Aug 7, 2026 | [701 Pike St](https://nearbypermits.com/seattle/address/701-pike-st/) | 320 ft SW | 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/) | 560 ft S | 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/) | 560 ft S | 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 8, 2026 | [600 University St](https://nearbypermits.com/seattle/address/600-university-st/) | 850 ft S | 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/) | 850 ft S | 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/) | 850 ft S | 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 | [600 Pine St](https://nearbypermits.com/seattle/address/600-pine-st/) | 960 ft W | Alteration or repair | Construct tenant improvement to existing retail space subject to field inspection STFI. | $55,000 | [7141436-CN](https://nearbypermits.com/seattle/permit/7141436-CN/) |
| Jun 9, 2026 | [600 Pine St](https://nearbypermits.com/seattle/address/600-pine-st/) | 960 ft W | Alteration or repair | Construct tenant improvements in existing mall in Suite 120A per plan. | $80,000 | [7138281-CN](https://nearbypermits.com/seattle/permit/7138281-CN/) |
| Jun 9, 2026 | [900 University St](https://nearbypermits.com/seattle/address/900-university-st/) | 700 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 | [520 Pike St](https://nearbypermits.com/seattle/address/520-pike-st/) | 840 ft 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/) |
| May 27, 2026 | [600 University St](https://nearbypermits.com/seattle/address/600-university-st/) | 850 ft S | 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/) | 850 ft S | 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 19, 2026 | [600 Pine St](https://nearbypermits.com/seattle/address/600-pine-st/) | 960 ft W | Alteration or repair | Construct interior alterations for "In the Mind of a Serial Killer" temporary exhibit within existing downtown assembly / gallery space per plan. | $250,000 | [7136805-CN](https://nearbypermits.com/seattle/permit/7136805-CN/) |
| May 5, 2026 | [600 University St](https://nearbypermits.com/seattle/address/600-university-st/) | 850 ft S | 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/) |
| May 5, 2026 | [600 Pine St](https://nearbypermits.com/seattle/address/600-pine-st/) | 960 ft W | Alteration or repair | Tenant improvements at level 2 to existing retail space (suite 235) for future temporary FIFA-related retail per plan. | $60,000 | [7132779-CN](https://nearbypermits.com/seattle/permit/7132779-CN/) |
| May 5, 2026 | [600 Pine St](https://nearbypermits.com/seattle/address/600-pine-st/) | 960 ft W | Alteration or repair | Interior tenant improvements for storage space (no current tenant) at level 4 (suite 401) of commercial building occupy per plan. | $80,000 | [7131761-CN](https://nearbypermits.com/seattle/permit/7131761-CN/) |

### Farther (1,000 ft to ¼ mi), 8 permits

| Date | Address | Distance | Type | Work | Cost | Permit |
|---|---|---|---|---|---|---|
| Oct 6, 2026 | [808 Howell St](https://nearbypermits.com/seattle/address/808-howell-st/) | 0.21 mi NW | Alteration or repair | Construct tenant improvements to existing mixed use building at level 1 per plan. | $200,000 | [7158872-CN](https://nearbypermits.com/seattle/permit/7158872-CN/) |
| Aug 26, 2026 | [700 Olive Way](https://nearbypermits.com/seattle/address/700-olive-way/) | 0.22 mi NW | Alteration or repair | Construct blanket permit tenant improvements to future tenant on the seventh floor of existing commercial building per plan. | $2,800,000 | [7152450-BK](https://nearbypermits.com/seattle/permit/7152450-BK/) |
| Aug 21, 2026 | [500 Pine St](https://nearbypermits.com/seattle/address/500-pine-st/) | 0.22 mi W | Alteration or repair | Tenant improvement for office building (Nordstrom's Corporate) at northwest entry on ground level of existing commercial building per plan. | $60,000 | [7124736-CN](https://nearbypermits.com/seattle/permit/7124736-CN/) |
| Aug 4, 2026 | [500 Pine St](https://nearbypermits.com/seattle/address/500-pine-st/) | 0.22 mi W | Alteration or repair | Construct tenant improvement to existing commercial building (Nordstrom tenant) at metro floor per plan. Mechanical included | $252,000 | [7144210-CN](https://nearbypermits.com/seattle/permit/7144210-CN/) |
| Jul 30, 2026 | [700 Olive Way](https://nearbypermits.com/seattle/address/700-olive-way/) | 0.22 mi NW | Alteration or repair | Construct blanket permit tenant improvements to RC Hedreen on the 16th floor of existing commercial building per plan. | $395,000 | [7152446-BK](https://nearbypermits.com/seattle/permit/7152446-BK/) |
| Jun 2, 2026 | [1020 Seneca St](https://nearbypermits.com/seattle/address/1020-seneca-st/) | 0.24 mi 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 28, 2026 | [415 Pine St](https://nearbypermits.com/seattle/address/415-pine-st/) | 0.23 mi W | 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/) | 0.22 mi SW | 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/) |

## Zoning requests nearby

There are no zoning requests on file within ¼ mi. Seattle's feed was last read Oct 9.

## More on this street

Other addresses on Union St with permits, nearest house number first:

- [903 Union St](https://nearbypermits.com/seattle/address/903-union-st/): newest permit Sep 8, 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 2026-10-09 20:40 UTC. Nearby Permits, https://nearbypermits.com. JSON API and MCP server: https://nearbypermits.com/developers/

Zoning requests come from the Seattle land use permits (https://cos-data.seattle.gov/d/ht3q-kdvx), City of Seattle. We read it Oct 9, 19:48 UTC.

Map, all 96 permits at this address and 42 nearby: https://nearbypermits.com/seattle/address/800-union-st/