# Building permits at 3645 E 22nd Ave W, Seattle, WA The biggest project within a quarter mile since May 1: an $8M alteration or repair at 3919 18th Ave W, permitted Jul 29. One permit on record here. The newest, Dec 12, 2025: Construct alterations to townhouse Unit E in existing townhouse. Within a quarter mile, the city has issued 9 more permits since May 1. Two are for new buildings, the nearest 540 ft away. ## At this address | Date | Type | Work | Cost | Permit | |---|---|---|---|---| | Dec 12, 2025 | Alteration or repair | Construct alterations to townhouse Unit E in existing townhouse per plan | $16,145 | [7112443-CN](https://nearbypermits.com/seattle/permit/7112443-CN/) | ## Within ¼ mi since May 1, 2026 9 permits in the circle. From our copy of the city's data (last 24 months). ### This block (250 to 1,000 ft), 3 permits | Date | Address | Distance | Type | Work | Cost | Permit | |---|---|---|---|---|---|---| | Aug 24, 2026 | [3814 24th Ave W](https://nearbypermits.com/seattle/address/3814-24th-ave-w/) | 540 ft NW | New building | Construct east one-family dwelling per plan (Allow housing for two new detached dwelling units per land use code. Existing detached dwelling to remain. Construct (2) one-family dwellings per plan. Review & process for (2) records under 7120935-CN) | $418,548 | [7137276-CN](https://nearbypermits.com/seattle/permit/7137276-CN/) | | Aug 24, 2026 | [3812 24th Ave W](https://nearbypermits.com/seattle/address/3812-24th-ave-w/) | 580 ft NW | New building | Construct middle one-family dwelling per plan (Allow housing for two new detached dwelling units per land use code. Existing detached dwelling to remain. Construct (2) one-family dwellings per plan. Review & process for (2) records under 7120935-CN) | $417,432 | [7120935-CN](https://nearbypermits.com/seattle/permit/7120935-CN/) | | Aug 7, 2026 | [3814 23rd Ave W](https://nearbypermits.com/seattle/address/3814-23rd-ave-w/) | 320 ft NW | Alteration or repair | Construct additions and alterations for existing one family dwelling per plan. | $27,826 | [7134853-CN](https://nearbypermits.com/seattle/permit/7134853-CN/) | ### Farther (1,000 ft to ¼ mi), 6 permits | Date | Address | Distance | Type | Work | Cost | Permit | |---|---|---|---|---|---|---| | Sep 14, 2026 | [3501 26th Pl W](https://nearbypermits.com/seattle/address/3501-26th-pl-w/) | 0.22 mi SW | Alteration or repair | Construct alterations to multifamily (Arrive) at eastside foundation on ground floor of existing apartment building per plan. | $35,000 | [7140506-CN](https://nearbypermits.com/seattle/permit/7140506-CN/) | | Sep 1, 2026 | [3425 25th Ave W](https://nearbypermits.com/seattle/address/3425-25th-ave-w/) | 0.25 mi SW | Alteration or repair | Voluntary seismic retrofit to portions of existing apartment at the east of level 1 per plan. | $35,000 | [7140534-CN](https://nearbypermits.com/seattle/permit/7140534-CN/) | | Aug 20, 2026 | [3601 26th Pl W](https://nearbypermits.com/seattle/address/3601-26th-pl-w/) | 0.21 mi SW | Alteration or repair | Construct alterations and voluntary seismic retrofit to existing apartment building per plan. | $35,000 | [7140508-CN](https://nearbypermits.com/seattle/permit/7140508-CN/) | | Aug 6, 2026 | [1900 W Nickerson St](https://nearbypermits.com/seattle/address/1900-w-nickerson-st/) | 0.24 mi NE | Demolition | Demolish existing commercial building to slab on grade per plan. | $4,700,000 | [7144448-DM](https://nearbypermits.com/seattle/permit/7144448-DM/) | | Jul 29, 2026 | [3919 18th Ave W](https://nearbypermits.com/seattle/address/3919-18th-ave-w/) | 0.24 mi NE | Alteration or repair | Construct alterations to existing commercial building per plan. Mechanical review is included. | $8,000,000 | [7126475-CN](https://nearbypermits.com/seattle/permit/7126475-CN/) | | Jul 2, 2026 | [3520 27th Pl W](https://nearbypermits.com/seattle/address/3520-27th-pl-w/) | 0.23 mi SW | Alteration or repair | Construct voluntary seismic improvements to a multi-family building per plans | $35,000 | [7126293-CN](https://nearbypermits.com/seattle/permit/7126293-CN/) | --- Source: Seattle Department of Construction and Inspections permit data (https://cos-data.seattle.gov/d/76t5-zqzr), City of Seattle. Checked 2026-10-07 03:19 UTC. Nearby Permits, https://nearbypermits.com. JSON API and MCP server: https://nearbypermits.com/developers/ Map, the one permit at this address and 9 nearby: https://nearbypermits.com/seattle/address/3645-e-22nd-ave-w/