# Building permits at 505 1st Ave S, Seattle, WA

33 permits on record here. The newest, Jan 23: Construct blanket permit tenant improvements to Vale Concepts on the first floor of existing commercial. Within a quarter mile, the city has issued 22 more permits since May 1.

## At this address

| Date | Type | Work | Cost | Permit |
|---|---|---|---|---|
| Jan 23, 2026 | Alteration or repair | Construct blanket permit tenant improvements to Vale Concepts on the first floor of existing commercial building per plan. | $50,000 | [7123801-BK](https://nearbypermits.com/seattle/permit/7123801-BK/) |
| Oct 13, 2025 | Alteration or repair | Tenant improvements for entry (Vale Concepts) at first floor suite 100 of existing commercial building occupy per plan. | $80,000 | [7091040-CN](https://nearbypermits.com/seattle/permit/7091040-CN/) |
| Jun 16, 2022 | Alteration or repair | Alterations to existing mixed use building and construct new partial 8th story assembly spaces and roof deck and occupy per plans. | $4,000,000 | [6818740-CN](https://nearbypermits.com/seattle/permit/6818740-CN/) |
| Mar 4, 2022 | Alteration or repair | Blanket permit tenant improvements to office space for future tenant on the 3rd floor per plans. | $600,000 | [6869697-BK](https://nearbypermits.com/seattle/permit/6869697-BK/) |
| Feb 22, 2022 | Alteration or repair | Blanket permit tenant improvements to office space for future tenant on the 6th floor per plans. | $600,000 | [6869702-BK](https://nearbypermits.com/seattle/permit/6869702-BK/) |
| Feb 22, 2022 | Alteration or repair | Blanket permit tenant improvements to office space for future tenant on the 5th floor per plans. | $600,000 | [6869701-BK](https://nearbypermits.com/seattle/permit/6869701-BK/) |
| Jan 11, 2022 | Alteration or repair | Blanket permit tenant improvements to office space for Dell Technologies on the 4th floor per plans. | $750,000 | [6862699-BK](https://nearbypermits.com/seattle/permit/6862699-BK/) |
| Nov 30, 2021 | Alteration or repair | Alterations to existing offices to remove convenience stair between levels 5 and 6 per plans. | $75,000 | [6839710-CN](https://nearbypermits.com/seattle/permit/6839710-CN/) |
| Aug 17, 2021 | Alteration or repair | Blanket permit tenant improvements to office space for Hudson Pacific Properties on the 1st floor per plans. | $2,000,000 | [6840237-BK](https://nearbypermits.com/seattle/permit/6840237-BK/) |
| May 30, 2019 | Alteration or repair | Blanket permit tenant improvements to office space for Nestle Storage on the 01 floor per plans. | $50,000 | [6722729-BK](https://nearbypermits.com/seattle/permit/6722729-BK/) |
| Dec 15, 2017 | Alteration or repair | Blanket permit for interior non-structural alterations. Tenant improvement on the 7th floor for "Qualtrics" per plan. | Not listed | [6633568-BK](https://nearbypermits.com/seattle/permit/6633568-BK/) |
| Apr 9, 2017 | Alteration or repair | Blanket permit for interior non-structural alterations to the 7th floor. For QUALTRICS PHASE 2 per plans. | Not listed | [6586633-BK](https://nearbypermits.com/seattle/permit/6586633-BK/) |
| Sep 6, 2016 | Alteration or repair | Blanket permit for interior non-structural alterations for tenant QUALTRICS. Floor 7 | Not listed | [6548920-BK](https://nearbypermits.com/seattle/permit/6548920-BK/) |
| May 20, 2016 | Alteration or repair | Alterations to expand office space at ground level of existing commercial building per plan | $100,000 | [6514383-CN](https://nearbypermits.com/seattle/permit/6514383-CN/) |
| Dec 18, 2015 | Alteration or repair | Tenant improvements to existing general retail space. Change use to office and occupy per plans. | $100,000 | [6493915-CN](https://nearbypermits.com/seattle/permit/6493915-CN/) |
| Oct 20, 2015 | Alteration or repair | Blanket permit for interior non-structural alterations. Tenant improvement on second floor. | Not listed | [6494995-BK](https://nearbypermits.com/seattle/permit/6494995-BK/) |
| Mar 28, 2015 | Alteration or repair | Construct tenant improvements to existing commercial building for suite 120 per plan. | $85,000 | [6438809-CN](https://nearbypermits.com/seattle/permit/6438809-CN/) |
| Oct 22, 2014 | Alteration or repair | Tenant improvements including new training rooms for second floor office.and occupy per plan. | $1,900,000 | [6419690-CN](https://nearbypermits.com/seattle/permit/6419690-CN/) |
| Mar 4, 2014 | Alteration or repair | Blanket permit for interior non-structural alterations for Nuance to 7th floor per plans. | Not listed | [6395061-BK](https://nearbypermits.com/seattle/permit/6395061-BK/) |
| Sep 21, 2013 | Alteration or repair | Minor telecommunication utility for Sprint: Interior alterations to install radio equipment cabinets in 3rd floor space (room #325) add lighting HVAC cable tray for connection to interior DAS antenna communication system. Add (1) GPS/E-911 antenna on rooftop for emergency global positioning all per  | $22,000 | [6371075-CN](https://nearbypermits.com/seattle/permit/6371075-CN/) |
| Aug 19, 2013 | Alteration or repair | Construct alterations to add restrooms to offices at floors 4 5 and 6 in existing commercial building per floor plan subject to field inspection. | $100,707 | [6379145-CN](https://nearbypermits.com/seattle/permit/6379145-CN/) |
| May 17, 2013 | Alteration or repair | Alterations to existing telecommunications facility (AT&T) per plan. | $15,000 | [6355964-CN](https://nearbypermits.com/seattle/permit/6355964-CN/) |
| Jul 25, 2012 | Alteration or repair | Blanket permit for interior non-structural alterations. Tenant improvements to entire 3rd floor per plan. | Not listed | [6326568-BK](https://nearbypermits.com/seattle/permit/6326568-BK/) |
| Jun 1, 2011 | Alteration or repair | Construct new convenience staircase between floors 5 & 6 and structural review for server room floor loads at 4th floor for Isilon Systems all per plan. 5/24/12 jcb/mhs; updated bldg id per addressing. | $100,000 | [6273811-CN](https://nearbypermits.com/seattle/permit/6273811-CN/) |
| May 27, 2011 | Demolition | Demolish existing industrial building including shoring and to preserve historic east wall per plans and MUP #3005586. | Not listed | [6130915-DM](https://nearbypermits.com/seattle/permit/6130915-DM/) |
| Apr 7, 2011 | Alteration or repair | Blanket permit for interior non-structural alterations to ISILON Floors 4 5 and 6 | Not listed | [6274408-BK](https://nearbypermits.com/seattle/permit/6274408-BK/) |
| Feb 10, 2011 | Elevator | Construct rooftop deck stair penthouse & elevator penthouse; install elevator between 6th flr & roof per plan. | $480,000 | [6254288-CN](https://nearbypermits.com/seattle/permit/6254288-CN/) |
| Oct 6, 2010 | Alteration or repair | alterations to provide access for future elevator to include opening/built out of core floors 6 7 & roof for office bldg per plan. | $47,000 | [6262763-CN](https://nearbypermits.com/seattle/permit/6262763-CN/) |
| Aug 10, 2010 | Alteration or repair | Blanket permit for interior non-structural alterations to Nuance 7th floor per plans. | Not listed | [6255358-BK](https://nearbypermits.com/seattle/permit/6255358-BK/) |
| Feb 25, 2008 | New building | Phase II of II To build an addition of a 7-story 308 000 sf commercial office building with ground floor retail above a 4-level 454 stall underground parking garage. Structural and Architectural Completion this phase and occupy per plans. | $60,299,131 | [6125485-CN](https://nearbypermits.com/seattle/permit/6125485-CN/) |
| Oct 8, 2007 | New building | Phase I B of II to build an addition of a 7-story 308 000 sf commercial office building with ground floor retail above a 4-level 440 stall underground parking garage. Shoring Excavation Foundation and Substructure to Grade this phase per plans. Micro piles under 6152626 | $27,000,000 | [6129921-CN](https://nearbypermits.com/seattle/permit/6129921-CN/) |
| Sep 7, 2007 | New building | Phase I A Micro piles and drilled piers (this permit) as part of Phase I of II to build an addition of a 7-story 308 000 sf commercial office building with ground floor retail above a 4-level 440 stall underground parking garage. Shoring Excavation Foundation and Substructure to Grade this phase per | $1,262,400 | [6152626-CN](https://nearbypermits.com/seattle/permit/6152626-CN/) |
| Jun 21, 2007 | Alteration or repair | (Related to MUP 3005586)Remove face brick for future re-installation on facade of building in Pioneer Square per STFI. | $210,000 | [6144023-CN](https://nearbypermits.com/seattle/permit/6144023-CN/) |

## Within ¼ mi since May 1, 2026

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

### Next door (under 250 ft), 3 permits

| Date | Address | Distance | Type | Work | Cost | Permit |
|---|---|---|---|---|---|---|
| Aug 18, 2026 | [83 S King St](https://nearbypermits.com/seattle/address/83-s-king-st/) | 140 ft N | Alteration or repair | Construct blanket permit tenant improvements to QuoteWizard on the seventh and eighth floors of existing commercial building per plan. | $550,000 | [7155778-BK](https://nearbypermits.com/seattle/permit/7155778-BK/) |
| Jun 25, 2026 | [83 S King St](https://nearbypermits.com/seattle/address/83-s-king-st/) | 140 ft N | Alteration or repair | Construct blanket permit tenant improvements to future tenant on the seventh and eighth floors of existing commercial building per plan. | $400,000 | [7147154-BK](https://nearbypermits.com/seattle/permit/7147154-BK/) |
| Jun 25, 2026 | [83 S King St](https://nearbypermits.com/seattle/address/83-s-king-st/) | 140 ft N | Alteration or repair | Construct blanket permit tenant improvements to future tenant on the fourth floor of existing commercial building per plan. | $350,000 | [7144415-BK](https://nearbypermits.com/seattle/permit/7144415-BK/) |

### This block (250 to 1,000 ft), 7 permits

| Date | Address | Distance | Type | Work | Cost | Permit |
|---|---|---|---|---|---|---|
| Oct 13, 2026 | [450 Alaskan Way S](https://nearbypermits.com/seattle/address/450-alaskan-way-s/) | 390 ft N | Alteration or repair | Establish initial use of tenant space as major durables retail sales per land use code. Construct tenant improvement in ground floor of existing commercial building occupy per plan. | $100,000 | [7158007-CN](https://nearbypermits.com/seattle/permit/7158007-CN/) |
| Aug 27, 2026 | [97 S Jackson St](https://nearbypermits.com/seattle/address/97-s-jackson-st/) | 500 ft N | Alteration or repair | Repair exterior envelope facade and construct partial voluntary seismic retrofit to existing condominium building per plan. | $320,000 | [7134327-CN](https://nearbypermits.com/seattle/permit/7134327-CN/) |
| Aug 25, 2026 | [542 1st Ave S](https://nearbypermits.com/seattle/address/542-1st-ave-s/) | 320 ft SE | Alteration or repair | Tenant improvement to remove interior stair between levels 3 and 4 in existing office in existing commercial building per plan. | $110,000 | [7145260-CN](https://nearbypermits.com/seattle/permit/7145260-CN/) |
| Aug 21, 2026 | [419 Occidental Ave S](https://nearbypermits.com/seattle/address/419-occidental-ave-s/) | 470 ft NE | Alteration or repair | Construct outdoor seating area at commercial building for Death & Co per plan. | $1,000 | [7155840-CN](https://nearbypermits.com/seattle/permit/7155840-CN/) |
| May 30, 2026 | [313 1st Ave S](https://nearbypermits.com/seattle/address/313-1st-ave-s/) | 700 ft N | Alteration or repair | Change of use from B Office to Restaurant (B | $20,000 | [7138084-CN](https://nearbypermits.com/seattle/permit/7138084-CN/) |
| May 26, 2026 | [145 S King St](https://nearbypermits.com/seattle/address/145-s-king-st/) | 580 ft E | Alteration or repair | Construct exterior alterations adjacent to existing commercial building for outdoor seating per plan. | $15,000 | [7140538-CN](https://nearbypermits.com/seattle/permit/7140538-CN/) |
| May 20, 2026 | [401 1st Ave S](https://nearbypermits.com/seattle/address/401-1st-ave-s/) | 500 ft N | Alteration or repair | Construct blanket permit tenant improvements to future tenant on the fourth floor of existing commercial building per plan. | $170,000 | [7137595-BK](https://nearbypermits.com/seattle/permit/7137595-BK/) |

### Farther (1,000 ft to ¼ mi), 12 permits

| Date | Address | Distance | Type | Work | Cost | Permit |
|---|---|---|---|---|---|---|
| Aug 25, 2026 | [800 Occidental Ave S](https://nearbypermits.com/seattle/address/800-occidental-ave-s/) | 0.21 mi SE | Alteration or repair | Erect temporary stage and field seating for concert (Karol G) on August 26 2026 per plan. All stage components are provided by stage company and assembled by professional crew. Owner responsible for structural integrity of structure | $500,000 | [7158741-CN](https://nearbypermits.com/seattle/permit/7158741-CN/) |
| Aug 20, 2026 | [216 1st Ave S](https://nearbypermits.com/seattle/address/216-1st-ave-s/) | 0.19 mi N | Alteration or repair | Tenant improvements for office (Grand Central) at center of floors on 2nd 3rd and 4th floor of existing commercial building per plan. | $125,000 | [7151276-CN](https://nearbypermits.com/seattle/permit/7151276-CN/) |
| Jul 23, 2026 | [800 Occidental Ave S](https://nearbypermits.com/seattle/address/800-occidental-ave-s/) | 0.21 mi SE | Alteration or repair | Construct alterations to remove and replace concession counter tops and install overhead coiling security grille. No changes to egress from existing concessions area within Exhibition Hall at Lumen Field subject to field inspection (STFI) | $200,000 | [7154507-CN](https://nearbypermits.com/seattle/permit/7154507-CN/) |
| Jul 23, 2026 | [800 Occidental Ave S](https://nearbypermits.com/seattle/address/800-occidental-ave-s/) | 0.21 mi SE | Alteration or repair | Erect temporary stage and field seating for concert (Ed Sheeran) August 1st 2026 per plans. All stage components are provided by stage company and assembled by professional crew. Owner responsible for structural integrity of structure. | $1,000,000 | [7144999-CN](https://nearbypermits.com/seattle/permit/7144999-CN/) |
| Jun 22, 2026 | [301 2nd Ave S](https://nearbypermits.com/seattle/address/301-2nd-ave-s/) | 0.20 mi NE | Elevator | Construct elevator modernization to existing Seattle Fire Department Headquarters building per plan | $213,638 | [7103737-CN](https://nearbypermits.com/seattle/permit/7103737-CN/) |
| Jun 8, 2026 | [202 1st Ave S](https://nearbypermits.com/seattle/address/202-1st-ave-s/) | 0.21 mi N | Alteration or repair | Construct alterations to existing commercial building at basement level 1 and mezzanine levels occupy per plan. | $900,000 | [7117733-CN](https://nearbypermits.com/seattle/permit/7117733-CN/) |
| Jun 5, 2026 | [800 Occidental Ave S](https://nearbypermits.com/seattle/address/800-occidental-ave-s/) | 0.21 mi SE | Alteration or repair | [ADMINISTRATIVE RECORD - FOR INSPECTIONS PURPOSES ONLY] Construct temporary alterations (in stadium hospitality) at Lumen Field for 2026 FIFA World Cup event (6/15 - 7/6) per plan | Not listed | [7146547-CN](https://nearbypermits.com/seattle/permit/7146547-CN/) |
| Jun 5, 2026 | [800 Occidental Ave S](https://nearbypermits.com/seattle/address/800-occidental-ave-s/) | 0.21 mi SE | Alteration or repair | Construct temporary alterations (Vendor Installations) at Lumen Field for 2026 FIFA World Cup event (6/15 - 7/6) per plan | Not listed | [7138108-CN](https://nearbypermits.com/seattle/permit/7138108-CN/) |
| Jun 4, 2026 | [800 Occidental Ave S](https://nearbypermits.com/seattle/address/800-occidental-ave-s/) | 0.21 mi SE | Alteration or repair | Construct temporary alterations at Lumen Field for 2026 FIFA World Cup event (3/17 - 7/31) per plan | Not listed | [7121936-CN](https://nearbypermits.com/seattle/permit/7121936-CN/) |
| Jun 2, 2026 | [216 1st Ave S](https://nearbypermits.com/seattle/address/216-1st-ave-s/) | 0.19 mi N | Alteration or repair | Voluntary seismic upgrades to the parapets (added steel bracing) at the Grand Central Building per plan. | $40,000 | [7133808-CN](https://nearbypermits.com/seattle/permit/7133808-CN/) |
| May 18, 2026 | [801 1st Ave S](https://nearbypermits.com/seattle/address/801-1st-ave-s/) | 0.24 mi S | Fence, wall or deck | Temporary use / permit for the WOSCA site to be used as charter bus staging for the FIFA World Cup June -July 2026. Scope of work will include bicycle racks for parking security fences gates and temporary traffic control stanchions for under 80 busses at this location. | $100,000 | [7133397-CN](https://nearbypermits.com/seattle/permit/7133397-CN/) |
| May 5, 2026 | [800 Occidental Ave S](https://nearbypermits.com/seattle/address/800-occidental-ave-s/) | 0.21 mi SE | Alteration or repair | Construct tenant improvement to construction office pods at Lumen Field subject to field inspection STFI. | $79,676 | [7139917-CN](https://nearbypermits.com/seattle/permit/7139917-CN/) |

## Zoning requests nearby

There are no zoning requests on file within ¼ mi. Seattle's feed was last read Oct 17.

## More on this street

Other addresses on 1st Ave S with permits, nearest house number first:

- [500 1st Ave S](https://nearbypermits.com/seattle/address/500-1st-ave-s/): newest permit Mar 18, 2026
- [542 1st Ave S](https://nearbypermits.com/seattle/address/542-1st-ave-s/): newest permit Aug 25, 2026
- [553 1st Ave S](https://nearbypermits.com/seattle/address/553-1st-ave-s/): newest permit Mar 3, 2025
- [562 1st Ave S](https://nearbypermits.com/seattle/address/562-1st-ave-s/): newest permit Mar 6, 2026
- [411 1st Ave S](https://nearbypermits.com/seattle/address/411-1st-ave-s/): newest permit Jul 14, 2025
- [401 1st Ave S](https://nearbypermits.com/seattle/address/401-1st-ave-s/): newest permit May 20, 2026
- [313 1st Ave S](https://nearbypermits.com/seattle/address/313-1st-ave-s/): newest permit May 30, 2026
- [216 1st Ave S](https://nearbypermits.com/seattle/address/216-1st-ave-s/): newest permit Aug 20, 2026
- [214 1st Ave S](https://nearbypermits.com/seattle/address/214-1st-ave-s/): newest permit Mar 19, 2026
- [801 1st Ave S](https://nearbypermits.com/seattle/address/801-1st-ave-s/): newest permit May 18, 2026

---
Source: Seattle Department of Construction and Inspections permit data (https://cos-data.seattle.gov/d/76t5-zqzr), City of Seattle. Checked 2026-10-17 03:35 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 17, 03:18 UTC.

Map, all 33 permits at this address and 22 nearby: https://nearbypermits.com/seattle/address/505-1st-ave-s/