Adams County Colorado ADUs: What Homeowners Need to Know
Adams County now allows accessory dwelling units (ADUs) in many areas. ADUs are small, independent homes on the same lot as a main house. They can be attached, detached, or inside an existing home.
Where Are ADUs Allowed?
You can build ADUs in most unincorporated residential zones. However, some neighborhoods with HOAs may restrict them. Always check your local covenants before planning an ADU.
What Are the Size Limits?
ADUs must be smaller than the main house. The maximum size is 1,200 square feet or 40% of the main home’s size, whichever is less. Detached ADUs must also meet setback and height requirements.
Who Can Live in an ADU?
Anyone can live in an ADU. You can rent it out or use it for family. However, you cannot sell the ADU separately from the main house.
What About Parking?
You must provide one off-street parking space for the ADU. This is in addition to parking required for the main house.
How Do You Apply?
First, check your property’s zoning. Then, submit a building permit application with site plans and construction details. The county will review your plans for compliance.
Other Important Rules
You must connect the ADU to water and sewer. Short-term rentals, like Airbnb, are not allowed in ADUs. The property owner must live on the lot, either in the main house or the ADU.
Conclusion
ADUs offer flexible living options in Adams County. They can help families, provide rental income, or support aging in place. Before you start, review all county rules and talk to planning staff. This ensures your ADU project goes smoothly from start to finish. See the Adams County Website to learn more and reach out to our experts at EVstudio any time to help you move your project forward.









