# Building permits at 600 4th Ave, Seattle, WA

17 permits on record here. The newest, Jun 12: Construct exterior alterations to City Hall. Within a quarter mile, the city has issued 19 more permits since May 1. One is a new building, 450 ft away.

## At this address

| Date | Type | Work | Cost | Permit |
|---|---|---|---|---|
| Jun 12, 2026 | Alteration or repair | Construct exterior alterations to City Hall per plan. | $3,500,000 | [7140475-CN](https://nearbypermits.com/seattle/permit/7140475-CN/) |
| May 2, 2025 | Alteration or repair | Construct tenant improvements to existing commercial building at the 2nd floor (Seattle City Hall) per plan. Mechanical included. | $180,000 | [7066294-CN](https://nearbypermits.com/seattle/permit/7066294-CN/) |
| Jan 11, 2024 | Addition | Construct alterations to remove repair and replace waterproofing topping slab and paving slab NE accessible ramp and flagpole addition at City Hall Plaza per plan. | $6,000,000 | [6972132-CN](https://nearbypermits.com/seattle/permit/6972132-CN/) |
| Dec 15, 2023 | Alteration or repair | Construct alterations to existing commercial building (Seattle City Hall) at penthouse per plan. | $50,000 | [6985951-CN](https://nearbypermits.com/seattle/permit/6985951-CN/) |
| Jun 4, 2018 | Alteration or repair | Construct alterations for an emergency shelter in a portion of Seattle City Hall occupy per plans. | $2,000 | [6668655-CN](https://nearbypermits.com/seattle/permit/6668655-CN/) |
| Oct 10, 2016 | Alteration or repair | Interior alterations to Seattle City Hall 5th Floor subject to field inspection (STFI). | $250,000 | [6560245-CN](https://nearbypermits.com/seattle/permit/6560245-CN/) |
| Oct 10, 2016 | Alteration or repair | Interior alterations to the Office of Intergovernmental Relations subject to field inspection (STFI). | $80,000 | [6559896-CN](https://nearbypermits.com/seattle/permit/6559896-CN/) |
| Oct 7, 2016 | Alteration or repair | Construct tenant improvements to Seattle City Hall on the 7th floor subject to field inspection (STFI) | $217,079 | [6560741-CN](https://nearbypermits.com/seattle/permit/6560741-CN/) |
| Apr 29, 2016 | Alteration or repair | Construct interior alterations to existing tenant improvement 6th floor subject to field inspection (STFI.) | $27,243 | [6532397-CN](https://nearbypermits.com/seattle/permit/6532397-CN/) |
| Sep 24, 2015 | Alteration or repair | Construct tenant improvements on the 4th story in an existing commercial building per plans. | $250,000 | [6479359-CN](https://nearbypermits.com/seattle/permit/6479359-CN/) |
| Sep 4, 2015 | Alteration or repair | Construct interior alterations to offices at northeast corner of fourth floor in existing commercial building subject to field inspection (STFI) | $35,000 | [6493485-CN](https://nearbypermits.com/seattle/permit/6493485-CN/) |
| May 3, 2011 | Alteration or repair | Tenant improvements to portion of 4th floor offices per floor plan subject to field inspection. | $35,000 | [6279533-CN](https://nearbypermits.com/seattle/permit/6279533-CN/) |
| Oct 19, 2007 | Alteration or repair | Change of Use from retail to restaurant plaza level NW Corner of Seattle City Hall and occupy per plan. | $160,000 | [6149939-CN](https://nearbypermits.com/seattle/permit/6149939-CN/) |
| Jul 25, 2007 | Alteration or repair | Tenant improvement (non-structural)to existing unoccupied retail space. New dimising walls windows and doors (gound level corner of 4th ave and Cherry St.) Subject to field inspections. Stfi. | $33,000 | [6147970-CN](https://nearbypermits.com/seattle/permit/6147970-CN/) |
| Apr 3, 2007 | Alteration or repair | Construct non structural tenant improvements to existing administrative office per plan subject to field inspection | $27,989 | [6134630-CN](https://nearbypermits.com/seattle/permit/6134630-CN/) |
| Mar 8, 2007 | Alteration or repair | Closed as Incomplete - Expired Permit Tenant improvement to existing unoccupied retail space room 205 (ground level of corner of 4th Ave and Cherry St) subject to field inspection. | $4,000 | [6131607-CN](https://nearbypermits.com/seattle/permit/6131607-CN/) |
| Sep 23, 2005 | Alteration or repair | interior alterations at the 4th ave level G2 of Seattle City Hall for intermittent use homeless shelter and minor alts. to adjacent spaces all per plans. | $130,000 | [6071340-CN](https://nearbypermits.com/seattle/permit/6071340-CN/) |

## Within ¼ mi since May 1, 2026

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

### Next door (under 250 ft), 2 permits

| Date | Address | Distance | Type | Work | Cost | Permit |
|---|---|---|---|---|---|---|
| Aug 10, 2026 | [600 5th Ave](https://nearbypermits.com/seattle/address/600-5th-ave/) | 200 ft NE | Alteration or repair | Construct alterations to existing office building (Seattle Justice Center) subject to field inspection. | $301,725 | [7055021-CN](https://nearbypermits.com/seattle/permit/7055021-CN/) |
| Aug 4, 2026 | [610 5th Ave](https://nearbypermits.com/seattle/address/610-5th-ave/) | 200 ft NE | Alteration or repair | Construct alterations to install worker fall protection for institutional building [SEATTLE JUSTICE CENTER] per plan. | $579,600 | [7136816-CN](https://nearbypermits.com/seattle/permit/7136816-CN/) |

### This block (250 to 1,000 ft), 8 permits

| Date | Address | Distance | Type | Work | Cost | Permit |
|---|---|---|---|---|---|---|
| Sep 29, 2026 | [506 2nd Ave](https://nearbypermits.com/seattle/address/506-2nd-ave/) | 830 ft SW | Alteration or repair | Construct tenant improvements in a commercial building on floor 3 Suite 320 subject to field inspection (STFI) | $75,000 | [7164755-CN](https://nearbypermits.com/seattle/permit/7164755-CN/) |
| Sep 8, 2026 | [720 3rd Ave](https://nearbypermits.com/seattle/address/720-3rd-ave/) | 640 ft W | Addition | Construct addition at level 01 for existing mixed use building and occupy per plan. | $378,000 | [7115943-CN](https://nearbypermits.com/seattle/permit/7115943-CN/) |
| Sep 3, 2026 | [700 5th Ave](https://nearbypermits.com/seattle/address/700-5th-ave/) | 450 ft N | New building | Establish a standard plan for a one-family dwelling (no construction) | $266,935 | [7142326-CN](https://nearbypermits.com/seattle/permit/7142326-CN/) |
| Aug 18, 2026 | [615 2nd Ave](https://nearbypermits.com/seattle/address/615-2nd-ave/) | 980 ft SW | Alteration or repair | Construct tenant improvements for office space at level 7 of existing commercial building per plan | $547,017 | [7128757-CN](https://nearbypermits.com/seattle/permit/7128757-CN/) |
| Aug 17, 2026 | [800 5th Ave](https://nearbypermits.com/seattle/address/800-5th-ave/) | 730 ft N | Alteration or repair | Tenant Improvements for new gender neutral restrooms (Morgan Stanley) at 26th and 28th floors of existing office building per plan. Mechanical included. | $249,681 | [7114443-CN](https://nearbypermits.com/seattle/permit/7114443-CN/) |
| Jun 12, 2026 | [700 5th Ave](https://nearbypermits.com/seattle/address/700-5th-ave/) | 450 ft N | Alteration or repair | Construct blanket permit tenant improvements to Seattle City Light on floors: 28 30 32 33 34 35 36 of existing commercial building per plan. | $2,300,000 | [7087259-BK](https://nearbypermits.com/seattle/permit/7087259-BK/) |
| Jun 3, 2026 | [701 5th Ave](https://nearbypermits.com/seattle/address/701-5th-ave/) | 370 ft NW | Alteration or repair | Construct interior alterations to existing tenant space subject to field inspection STFI. | $22,500 | [7145753-CN](https://nearbypermits.com/seattle/permit/7145753-CN/) |
| Jun 2, 2026 | [500 4th Ave](https://nearbypermits.com/seattle/address/500-4th-ave/) | 340 ft S | Alteration or repair | Construct minor alterations to telecommunications facility (AT&T) on rooftop of existing commercial building per plan | $30,000 | [7075015-CN](https://nearbypermits.com/seattle/permit/7075015-CN/) |

### Farther (1,000 ft to ¼ mi), 9 permits

| Date | Address | Distance | Type | Work | Cost | Permit |
|---|---|---|---|---|---|---|
| Sep 29, 2026 | [711 2nd Ave](https://nearbypermits.com/seattle/address/711-2nd-ave/) | 0.20 mi W | Alteration or repair | Blanket tenant improvements for MARKETY READY in Suite 1025 of existing commercial building per plan. | $700,000 | [7140221-BK](https://nearbypermits.com/seattle/permit/7140221-BK/) |
| Sep 29, 2026 | [1000 4th Ave](https://nearbypermits.com/seattle/address/1000-4th-ave/) | 0.24 mi NW | Alteration or repair | Construct alterations to SPL Central Library at L1 and L2 per plan. | $250,000 | [7028993-CN](https://nearbypermits.com/seattle/permit/7028993-CN/) |
| Sep 18, 2026 | [920 5th Ave](https://nearbypermits.com/seattle/address/920-5th-ave/) | 0.20 mi N | Alteration or repair | Construct tenant improvement to existing commercial building at level 19 tenant space (Stripe) occupy per plan. | $887,852 | [7151731-CN](https://nearbypermits.com/seattle/permit/7151731-CN/) |
| Sep 16, 2026 | [101 Yesler Way](https://nearbypermits.com/seattle/address/101-yesler-way/) | 0.25 mi SW | Alteration or repair | Construct alterations to retail space #103A on ground floor per plan. | $20,000 | [7137485-CN](https://nearbypermits.com/seattle/permit/7137485-CN/) |
| Aug 17, 2026 | [925 4th Ave](https://nearbypermits.com/seattle/address/925-4th-ave/) | 0.20 mi NW | Alteration or repair | Construct interior alterations to existing offices spaces subject to field inspection STFI. | $45,000 | [7158336-CN](https://nearbypermits.com/seattle/permit/7158336-CN/) |
| Aug 10, 2026 | [505 Madison St](https://nearbypermits.com/seattle/address/505-madison-st/) | 0.20 mi N | Alteration or repair | Construct blanket permit tenant improvements to Booking.com on the eighth floor of existing commercial building per plan. | $500,000 | [7134943-BK](https://nearbypermits.com/seattle/permit/7134943-BK/) |
| Jul 28, 2026 | [925 4th Ave](https://nearbypermits.com/seattle/address/925-4th-ave/) | 0.20 mi NW | Alteration or repair | Construct blanket permit tenant improvements to Eastdil Secured LLC on the 23rd floor of existing commercial building per plan. | $350,000 | [7150067-BK](https://nearbypermits.com/seattle/permit/7150067-BK/) |
| Jul 15, 2026 | [925 4th Ave](https://nearbypermits.com/seattle/address/925-4th-ave/) | 0.20 mi NW | Alteration or repair | Construct exterior alterations to existing commercial building per plan. | $43,605 | [7118357-CN](https://nearbypermits.com/seattle/permit/7118357-CN/) |
| May 29, 2026 | [920 5th Ave](https://nearbypermits.com/seattle/address/920-5th-ave/) | 0.20 mi N | Alteration or repair | Remove connection stairs and infill floor between 25th & 26th floors of existing commercial building (Madison Centre) per plan. | $350,000 | [7129996-CN](https://nearbypermits.com/seattle/permit/7129996-CN/) |

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Source: Seattle Department of Construction and Inspections permit data (https://cos-data.seattle.gov/d/76t5-zqzr). Checked 2026-10-05 15:36 UTC. Nearby Permits, https://nearbypermits.com. JSON API and MCP server: https://nearbypermits.com/developers/

Map, all 17 permits at this address and 19 nearby: https://nearbypermits.com/seattle/address/600-4th-ave/