# Building permits at 9426 Olson Pl SW, Seattle, WA One permit on record here. The newest, Aug 13, 2025: Construct middle/east two-family dwelling (Lot D). Within a quarter mile, the city has issued no other permits since May 1. ## At this address | Date | Type | Work | Cost | Permit | |---|---|---|---|---| | Aug 13, 2025 | New building | Construct middle/east two-family dwelling (Lot D) per plan. [Establish use as single-family single-family with attached accessory dwelling unit and detached accessory dwelling unit per land use code. Construct one- and two-family dwellings per plan. Review and processing for (9) construction records | $729,687 | [7013339-CN](https://nearbypermits.com/seattle/permit/7013339-CN/) | ## Within ΒΌ mi since May 1, 2026 0 permits in the circle. From our copy of the city's data (last 24 months). --- Source: Seattle Department of Construction and Inspections permit data (https://cos-data.seattle.gov/d/76t5-zqzr). Checked 2026-10-05 15:29 UTC. Nearby Permits, https://nearbypermits.com. JSON API and MCP server: https://nearbypermits.com/developers/ Map and the one permit at this address: https://nearbypermits.com/seattle/address/9426-olson-pl-sw/