⚠️ This information is for educational purposes. Always verify current regulations with the Tacoma Planning Department before starting your project.
Tacoma ADU Regulations at a Glance
Here are the key zoning rules for Accessory Dwelling Units in Tacoma, Washington. These regulations apply as of 2026.
| Regulation | Requirement |
|---|---|
| Maximum Size | 1,000 sq ft |
| Property Setbacks | 5 ft rear, 5 ft side |
| Extra Parking Required | Not required (near transit) |
| Owner Occupancy | Not required |
Additional Local Requirements
- ADU allowed in most residential zones
- Minimum 200 sq ft
- Conversion of existing structures encouraged
- No minimum lot size for ADU
- Parking waived within 0.5 mile of transit (WA HB 1337)
📥 Get the Complete Tacoma ADU Cheat Sheet
To get the step-by-step permit checklist and the official local contacts, download the Complete Tacoma ADU Cheat Sheet.
Download the Tacoma PDF Guide — $12Frequently Asked Questions About ADUs in Tacoma
Can I build an ADU in Tacoma?
Yes, Tacoma allows ADUs under Washington state law and local zoning ordinances. [ADDITIONAL_FAQ_1]
How big can my ADU be in Tacoma?
The maximum size for an ADU in Tacoma is 1,000 square feet, subject to setback and lot coverage requirements.
Do I need a permit for an ADU in Tacoma?
Yes, all ADUs require a building permit from the Tacoma Building & Safety Department.
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