# Building permits at 401 5th Ave, Seattle, WA 401 5th Ave, Seattle has 17 building permits on record. The most recent, issued Sep 17, 2025, is for alteration or repair: Construct interior non-structural alterations to convert two restrooms into one all people's restroom per plan. Mechanical work included this permit. | Date | Type | Work | Cost | Permit | |---|---|---|---|---| | Sep 17, 2025 | Alteration or repair | Construct interior non-structural alterations to convert two restrooms into one all people's restroom per plan. Mechanical work included this permit. | $300,000 | [7099928-CN](https://nearbypermits.com/seattle/permit/7099928-CN/) | | Oct 21, 2022 | Fence, wall or deck | Construct fabric shade cover over existing 2nd floor deck per plans. | $29,898 | [6903024-CN](https://nearbypermits.com/seattle/permit/6903024-CN/) | | Jan 9, 2020 | Alteration or repair | Construct non-structural improvements to Suite 135 of existing commercial building subject to field inspection (STFI). | $10,000 | [6765693-CN](https://nearbypermits.com/seattle/permit/6765693-CN/) | | Jan 13, 2015 | Alteration or repair | Interior alterations to third floor of Director's office subject to field inspection (STFI). | $15,000 | [6454400-CN](https://nearbypermits.com/seattle/permit/6454400-CN/) | | Apr 28, 2014 | Fence, wall or deck | Construct alterations and repairs to 2nd floor balcony wind screen and guard rail on existing commercial building per plan | $20,000 | [6410948-CN](https://nearbypermits.com/seattle/permit/6410948-CN/) | | Aug 17, 2011 | Alteration or repair | Non structual alterations on 1st floor per floor plan and subject to field inspection | $12,500 | [6292872-CN](https://nearbypermits.com/seattle/permit/6292872-CN/) | | Jul 31, 2009 | Alteration or repair | Tenant improvement (Daycare) in existing new King County office building at level (A) with level 2 outdoor playground and occupy per plan. | $349,753 | [6201111-CN](https://nearbypermits.com/seattle/permit/6201111-CN/) | | Jul 28, 2009 | Alteration or repair | Change of use from general retail to drinking/eating establishment with non structual alterations to NE corner of the 1st floor (Diva Expresso) and occupy per plan. | $40,000 | [6215852-CN](https://nearbypermits.com/seattle/permit/6215852-CN/) | | Oct 30, 2008 | Alteration or repair | Construct alterations to first floor office space conference room per floor plan and subject to field inspection STFI. | $40,000 | [6199496-CN](https://nearbypermits.com/seattle/permit/6199496-CN/) | | Oct 8, 2008 | Alteration or repair | TI to 8th floor per floor plan subject to field inspection. | $20,000 | [6197075-CN](https://nearbypermits.com/seattle/permit/6197075-CN/) | | Jun 27, 2007 | Alteration or repair | Interior alterations to existing tenant space on 1st floor for Credit Union per subject to field inspection | $75,000 | [6144664-CN](https://nearbypermits.com/seattle/permit/6144664-CN/) | | May 29, 2007 | Fence, wall or deck | Closed as Incomplete - Expired Permit Interior non-structural alterations (initial T.I.) to level "A" of existing structure to change use from office to fitness center and occupy per plan. | $73,600 | [6139801-CN](https://nearbypermits.com/seattle/permit/6139801-CN/) | | Mar 12, 2007 | Alteration or repair | Initial comm TI to floors 1 through 13.to complete the floor layout of office spaces per plans. Project includes change of use of several tenant spaces from Office to Human Service Use Office and vice versa. See comments under use and dwelling field. | $41,000,000 | [6119595-CN](https://nearbypermits.com/seattle/permit/6119595-CN/) | | May 24, 2006 | New building | Construct Phase Two of Two King County/Goat Hill Administrative Office Building and occupy per plan. 2/12/07 mvc: Revision to energy code.revised 6/11/2007 - Shop drawings for curtain wall. | $44,846,431 | [6084145-CN](https://nearbypermits.com/seattle/permit/6084145-CN/) | | May 12, 2006 | New building | Phase 2a - construct tower crane foundation and support per plan. | $42,500 | [6098163-CN](https://nearbypermits.com/seattle/permit/6098163-CN/) | | Jan 20, 2006 | New building | Construct Phase One of Two Shoring and Excavation only Goat Hill Offices for King County. Also includes at grade and below grade demolition of existing structure. | $500,000 | [6084146-CN](https://nearbypermits.com/seattle/permit/6084146-CN/) | | Dec 19, 2005 | Demolition | Demolish existing structure down to ground floor diaphragm subject to field inspection. All grade level and below grade demolition to be included in the phase one shoring and excavation permit - 6084146. | – | [6082534-DM](https://nearbypermits.com/seattle/permit/6082534-DM/) | --- Source: Seattle Department of Construction and Inspections permit data (https://cos-data.seattle.gov/d/76t5-zqzr). Checked 2026-10-02 10:02 UTC. Nearby Permits, https://nearbypermits.com. JSON API and MCP server: https://nearbypermits.com/developers/