# Building permits at 1135 18th Ave E, Seattle, WA

1135 18th Ave E, Seattle has 3 building permits on record. The most recent, issued Jan 20, 2025, is for addition or alteration: Construct detached structure with garage site improvements and deck at grade per plan.

| Date | Type | Work | Cost | Permit |
|---|---|---|---|---|
| Jan 20, 2025 | Addition or alteration | Construct detached structure with garage site improvements and deck at grade per plan. | $36,526 | [6953257-CN](https://nearbypermits.com/seattle/permit/6953257-CN/) |
| Jul 21, 2010 | Addition or alteration | Closed as incomplete - expired permit. Construct new retaining wall at along east property line per plan. | $6,500 | [6251705-CN](https://nearbypermits.com/seattle/permit/6251705-CN/) |
| Jun 13, 2007 | Addition or alteration | Closed as incomplete - expired permit. Construct a 2-story addition in the rear and interior alterations at all levels including install new baths and 1st-floor front porch alterations at an existing single family dwelling per plans. | $150,000 | [6129251-CN](https://nearbypermits.com/seattle/permit/6129251-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 12:22 UTC. Nearby Permits, https://nearbypermits.com. JSON API and MCP server: https://nearbypermits.com/developers/