⚠️ This information is for educational purposes. Always verify current regulations with the Grand Junction Planning Department before starting your project.
Grand Junction ADU Regulations at a Glance
Here are the key zoning rules for Accessory Dwelling Units in Grand Junction, Colorado. 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 | Required (1 space) |
| Owner Occupancy | Required |
Additional Local Requirements
- ADU in lower-density single-family zones
- Minimum 200 sq ft
- Maximum 25% lot coverage
- Building permit required
- ⚠️ CO has NO statewide ADU mandate — verify with city
📥 Get the Complete Grand Junction ADU Cheat Sheet
To get the step-by-step permit checklist and the official local contacts, download the Complete Grand Junction ADU Cheat Sheet.
Download the Grand Junction PDF Guide — $12Frequently Asked Questions About ADUs in Grand Junction
Can I build an ADU in Grand Junction?
Yes, Grand Junction allows ADUs under Colorado state law and local zoning ordinances. [ADDITIONAL_FAQ_1]
How big can my ADU be in Grand Junction?
The maximum size for an ADU in Grand Junction is 1,000 square feet, subject to setback and lot coverage requirements.
Do I need a permit for an ADU in Grand Junction?
Yes, all ADUs require a building permit from the Grand Junction Building & Safety Department.
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