# Building permits at 601 Pine St, Seattle, WA

601 Pine St, Seattle has 7 building permits on record. The most recent, issued Aug 10, 2026, is for mechanical (hvac): Tenant improvements at levels 1-3 of existing commercial building per plan. Mechanical included.

| Date | Type | Work | Cost | Permit |
|---|---|---|---|---|
| Aug 10, 2026 | Mechanical (HVAC) | 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/) |
| Dec 17, 2020 | Fence, wall or deck | Construct minor alterations to telecommunications facility (T-Mobile) on rooftop of existing commercial structure per plan | $40,000 | [6792197-CN](https://nearbypermits.com/seattle/permit/6792197-CN/) |
| Mar 15, 2019 | Roofing | Alterations to existing telecommunications utility (T-Mobile) on roof of existing building per plans. | $40,000 | [6674721-CN](https://nearbypermits.com/seattle/permit/6674721-CN/) |
| Mar 5, 2018 | Fence, wall or deck | Construct alterations to an existing minor communication utility (T-Mobile) in the rooftop penthouse of existing structure per plans. | $45,000 | [6620566-CN](https://nearbypermits.com/seattle/permit/6620566-CN/) |
| Aug 18, 2015 | Alteration or repair | Alterations to existing minor communication utility (for T-Mobile) per plans. | $15,000 | [6466794-CN](https://nearbypermits.com/seattle/permit/6466794-CN/) |
| Jul 20, 2011 | Alteration or repair | Add additional sector to existing minor communications utility.Replace two antennas to side of existing penthouse per plan | $25,000 | [6284053-CN](https://nearbypermits.com/seattle/permit/6284053-CN/) |
| Dec 29, 2010 | Alteration or repair | Alter 1st 2nd and 3rd floors of existing Retail (Forever 21) per plan | $1,120,000 | [6257261-CN](https://nearbypermits.com/seattle/permit/6257261-CN/) |

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Source: Seattle Department of Construction and Inspections permit data (https://cos-data.seattle.gov/d/76t5-zqzr). Checked 2026-10-01 23:30 UTC. Nearby Permits, https://nearbypermits.com. JSON API and MCP server: https://nearbypermits.com/developers/