Pierce County building & ADU permits
Recent permit activity, updated continuously.
Pierce County covers the Puget Sound region south of Seattle — unincorporated areas around Tacoma, Spanaway, Gig Harbor and Puyallup — and is permitted separately from the City of Tacoma. Its PALS permit system publishes a dedicated housing-type field that marks accessory dwelling units explicitly, so ADU projects are identified structurally rather than by keyword, including while they are still in review.
Igni is tracking 200 residential and building permits in Pierce County, WA — including 3 classified accessory-dwelling-unit (ADU) filings. The most active ZIP is 98391. The most recent filing Igni tracked was Aug 12, 2026. All records come from open.piercecountywa.gov (Socrata), an official government open-data feed, and are refreshed continuously.
200
Permits tracked
3
ADU permits
26
Distinct ZIP codes
Aug 12, 2026
Newest permit
Recent permits
A sample of the freshest permits in this jurisdiction — ZIP and city only (no street addresses).
| ZIP | Permit type | ADU type | Valuation | Applied |
|---|---|---|---|---|
| 98329 | Residential | — | $22,600 | Jul 21, 2026 |
| 98321 | Residential | Unknown | — | Jul 21, 2026 |
| 98444 | Residential | — | $539,599 | Jul 22, 2026 |
| 98444 | Residential | — | $386,757 | Jul 22, 2026 |
| 98373 | Residential | — | $473,440 | Jul 22, 2026 |
| 98580 | Residential | Detached ADU | $277,958 | Jul 22, 2026 |
| 98321 | Residential | — | $16,669 | Jul 22, 2026 |
| 98387 | Residential | — | $34,599 | Jul 22, 2026 |
| 98349 | Residential | — | — | Jul 22, 2026 |
| 98360 | Residential | — | $173,404 | Jul 22, 2026 |
| 98360 | Residential | — | — | Jul 22, 2026 |
| 98360 | Residential | — | $643,533 | Jul 22, 2026 |
| 98498 | Residential | — | $6,000 | Jul 22, 2026 |
| 98371 | Residential | — | $492,998 | Jul 23, 2026 |
| 98335 | Residential | — | $27,856 | Jul 23, 2026 |
| 98445 | Residential | — | $577,796 | Jul 23, 2026 |
| 98338 | Residential | — | $23,074 | Jul 23, 2026 |
| 98373 | Residential | — | $3,000 | Jul 23, 2026 |
| 98335 | Residential | — | $42,873 | Jul 24, 2026 |
| 98445 | Residential | — | $430,247 | Jul 24, 2026 |
Top ZIP codes by recent activity
ADU types in the recent set
Housing law — Washington
Washington's HB 1337 (2023) requires cities to allow at least two ADUs per lot in urban growth areas, bans owner-occupancy requirements, and limits parking and impact fees.
HB 1110 (2023) ends single-family-only zoning in larger cities, requiring duplex-to-sixplex middle housing scaled by city size, with Puget Sound cities phasing in compliance from 2025.
Data source
Sourced from open.piercecountywa.gov (Socrata). Public records (WA PRA).
Nearby cities — Washington
Learn more about ADUs & building permits
Background reading on accessory dwelling units, building permits, and how Igni turns Pierce County permit records into leads.
Pierce County permit data — FAQ
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Informational only, not legal advice. Headline counts reflect all permits Igni has tracked for this jurisdiction; the table shows recent activity. Housing law changes — verify current statutes before relying on this.