Detached Garage Construction Cost in Tacoma, WA
Based on 52 detached garage construction building permits filed in Tacoma between 2025 and 2026, the typical declared project value is $37,062, with most landing between $25,000 and $56,349. These are real records from Tacoma's public building-permit data, declared job values, not contractor estimates or AI guesses.
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Detached Garage Construction values over time in Tacoma
Median declared value moved from $25,000 in 2025 to $40,113 in 2026, up 60% over that span. Each year below is computed from the filings that actually cleared in Tacoma.
Recent detached garage construction permits in Tacoma
Actual filings from Tacoma's public permit records. Declared job values, not final paid prices.
| Filed | Declared value | Work described |
|---|---|---|
| 2026-05-21 | $95,000 | Convert existing 744 sf detached garage to DADU of SFD. |
| 2026-05-14 | $27,856 | 400 SF DETACHED GARAGE at SFD. (Related SDEV26-0044) ***NO PLUMBING & MECHANICAL INCLUDED |
| 2026-04-21 | $40,113 | Install a new 24'x24' detached garage in rear of SFD. (Related SDEV26-0078 for Erosion Con |
| 2026-04-15 | $27,856 | New detached garage construction of SFD. |
| 2026-04-02 | $29,053 | Carter Torgeson is building an accessory detached garage (448SF) with a sheet metal exteri |
| 2026-03-23 | $100,000 | Convert a detached garage into an accessory dwelling unit in rear of SFD. **Plumbing and m |
| 2026-03-10 | $57,709 | Construct 2 car detached garage in rear of SFD. No plumbing or mechanical. (Related SDEV25 |
| 2026-02-24 | $56,605 | Construct 836 sqft detached garage in rear of SFD. ***FRR26-0050 - APPROVED - 05/01/2026 - |
| 2026-01-29 | $11,950 | Crew will install 3 piles to stabilize retaining wall and 3 anchors to support retaining w |
| 2025-11-17 | $56,264 | Construction of a Detached Garage (747 SQFT and Deck and Porch Area (180SQFT) at SFD *** |
| 2025-11-10 | $56,096 | Demolition of existing structures and construction of a new garage at SFD ***No plumbing |
| 2025-11-07 | $25,000 | Demo 1345 sqft SFR (separate permit to demo detached garage) |
| 2025-10-28 | $15,000 | Demolition and removal of the entire detached garage of SFD. |
| 2025-09-09 | $15,500 | REMODEL TO EXSITING BASEMENT AT SFD. Includes plumbing and mechanical per approved plans. |
| 2025-07-23 | $32,815 | Build detached garage at new SFD. Related BLDRN25-0030 - SFD, and SDEV25-0090. |
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A permit's declared value is the job cost the owner or contractor stated when they pulled the permit. It tracks the real cost of the work but can run a bit under what was actually paid, since it often leaves out some labor and finish costs. Treat the range as a grounded starting point. What detached garage construction actually costs in Tacoma comes down to home size, materials, and scope.
Where this comes from
Every figure is pulled from Tacoma's public building-permit records and classified by the work described. Nothing is estimated or AI-generated. How the data works. The moment a Tacoma homeowner adds a real receipt, this page upgrades to show what neighbors actually paid next to these permit values.
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