# Building permits at 20112 Patterson Rd E, Pierce County, WA Five permits on record here. The newest, May 22: Convert existing 1404 sq ft 3-bedroom manufactured home to Accessory Dwelling Unit (1163 sq ft of living. Within a quarter mile, the county has issued no other permits since May 1. ## At this address | Date | Type | Work | Cost | Permit | |---|---|---|---|---| | May 22, 2026 | Alteration or repair | Convert existing 1404 sq ft 3-bedroom manufactured home to Accessory Dwelling Unit (1163 sq ft of living space) | Not listed | [1070416](https://nearbypermits.com/pierce-county/permit/1070416/) | | Aug 22, 2005 | Other | Construct/improve approach bp# 527450 | Not listed | [527461](https://nearbypermits.com/pierce-county/permit/527461/) | | Aug 10, 2005 | Alteration or repair | Install new 1404 sqft mobile home | Not listed | [527450](https://nearbypermits.com/pierce-county/permit/527450/) | | Aug 10, 2005 | New building | Temporary storage of mobile home | Not listed | [527449](https://nearbypermits.com/pierce-county/permit/527449/) | | Jul 8, 2005 | Other | Residential site development inspections (including drainage), reff bprs: 527450 | Not listed | [527463](https://nearbypermits.com/pierce-county/permit/527463/) | ## Within ΒΌ mi since May 1, 2026 0 permits in the circle. From our copy of the county's data (last 24 months). ## More on this street Other addresses on Patterson Rd E with permits, nearest house number first: - [19317 Patterson Rd E](https://nearbypermits.com/pierce-county/address/19317-patterson-rd-e/): newest permit Sep 30, 2026 - [19209 Patterson Rd E](https://nearbypermits.com/pierce-county/address/19209-patterson-rd-e/): newest permit May 5, 2025 - [19207 Patterson Rd E](https://nearbypermits.com/pierce-county/address/19207-patterson-rd-e/): newest permit Sep 14, 2026 - [18002 Patterson Rd E](https://nearbypermits.com/pierce-county/address/18002-patterson-rd-e/): newest permit Nov 5, 2024 --- Source: Pierce County Planning and Public Works permit data (https://open.piercecountywa.gov/d/nhnt-v7ka). Checked 2026-10-07 07:19 UTC. Nearby Permits, https://nearbypermits.com. JSON API and MCP server: https://nearbypermits.com/developers/ Map and all 5 permits at this address: https://nearbypermits.com/pierce-county/address/20112-patterson-rd-e/