Accessory Dwelling Units: What Homeowners Should Know
Accessory Dwelling Units (ADUs) — also referred to as granny flats, casitas, or in-law suites — are smaller, independent residential units located on the same lot as a single-family home. As an experienced ADU contractor serving Cañon City, Florence, Penrose, and the surrounding areas in Fremont County, Custer County, Pueblo County, and Park County, Mountain View Builders works with homeowners looking to add functional living space to their properties.
ADUs offer a practical solution to the growing demand for affordable housing. They can serve a range of purposes, including providing living space for family members, generating rental income, or creating a private office or studio. Colorado's House Bill 1152, recently signed into law by Governor Jared Polis, now requires most local governments to allow ADU construction on single-family home properties, making Colorado the fifth state to pass significant ADU legislation.
The Benefits of Building an ADU
There are several reasons homeowners consider adding an accessory dwelling unit to their property:
- Increased Housing Options: ADUs provide flexible housing for families, seniors, and renters. Whether it's aging parents wanting to stay close to family, young adults seeking independence, or renters in high-demand areas, a granny flat or in-law suite can accommodate a variety of living arrangements without requiring new land development.
- Rental Income: Homeowners can generate additional income by renting out their ADU. This can help offset mortgage payments, property taxes, and maintenance costs — particularly useful in higher-cost areas.
- Multigenerational Living: ADUs allow families to share a property while maintaining privacy and independence. This setup supports aging relatives and young adults without sacrificing personal space.
- Sustainable Development: Building on already developed land minimizes the need for new land use, preserves green spaces, and makes use of existing utilities and infrastructure.
- Increased Property Value: A well-designed ADU can improve a property's market appeal and resale value, particularly in areas with strong housing demand.
Colorado's ADU Legislation: Key Provisions
House Bill 1152 introduces several important changes that affect how ADUs can be built across Colorado. Understanding these provisions can help homeowners plan their projects more effectively:
- Minimum Size and Setbacks: The law allows ADUs of at least 800 square feet and reduces side and rear setbacks to 5 feet. This makes it more feasible to add a detached ADU or backyard cottage even on smaller lots.
- Parking Requirements: Off-street parking is no longer required for ADUs, removing a common barrier to construction, especially in urban settings.
- Owner Occupancy: Mandatory owner occupancy requirements have been eliminated, though municipalities may choose to enforce an optional owner developer requirement. This allows more flexibility in how ADUs are developed and used.
- Homeowners' Associations: The law supersedes HOA rules that previously prohibited ADUs, opening up ADU development in areas where it was previously restricted.
There are some exemptions to the legislation, including properties that cannot support additional water and sewer infrastructure or those located on historic properties.
Mountain View Builders brings over 18 years of construction industry experience to ADU projects in the region. Founded by Josh Esquibel, the team focuses on delivering quality craftsmanship and attention to detail across a range of ADU types — whether that's a garage conversion, a casita, or a fully detached unit. They serve homeowners across Fremont County, Custer County, Pueblo County, and Park County who are looking to make the most of their property through thoughtful ADU construction.