Accessory dwelling unit near me — Boulder, CO
Last updated: September 24, 2026
What affects the price
Building an ADU involves variables that shift your total investment. The footprint size and complexity of the architectural design are primary factors. Are you planning a detached unit that requires new utility trenching, or is this a garage conversion that uses existing plumbing? Site accessibility, soil conditions, and your choice of finishes—like luxury flooring versus standard options—also play significant roles. Permitting fees vary widely depending on your local municipality and current zoning requirements. Exact pricing confirmed free on the call.
About this service
If you are searching for an ADU near you, you are likely looking for local expertise to help you evaluate your property's potential. You need this when you are ready to assess whether your specific lot has enough space, the right setbacks, and proper utility access to legally support a new structure. We help homeowners verify their site feasibility and discuss the best design options that fit the character of your neighborhood and your personal needs.
Frequently asked in Boulder
What is the average accessory dwelling unit cost in Boulder?
What accessory dwelling unit services are available?
Accessory dwelling unit services include everything from initial design and planning to obtaining permits and full construction. Professionals in Boulder can handle all aspects of your ADU project. They ensure compliance with local regulations and deliver high-quality results tailored to your needs.
What does accessory dwelling unit mean in Boulder?
In Boulder, an accessory dwelling unit (ADU) refers to a secondary, independent living space on a single-family residential lot. It can be attached or detached from the main house. ADUs provide flexible housing options and are regulated by local zoning ordinances.
Are there accessory dwelling unit grants in Boulder?
How much does an ADU permit cost in Boulder?
What is a prefabricated accessory dwelling unit?
A prefabricated ADU is built in sections off-site in a factory and then transported to your Boulder property for assembly. This method can often expedite construction and provide cost certainty. The pros we work with can assess if a prefab ADU is a suitable option for your project.
What is ADU housing in Boulder?
ADU housing in Boulder refers to the secondary living units built on single-family lots. These can range from small studios to larger multi-bedroom units. They offer versatile solutions for homeowners, whether for family, guests, or rental income.
Also serving nearby: Longmont · Westminster · Arvada · Thornton · Lakewood
More on this: HUD ADU resources — ADU policy and financing research.
Service area details
Serving all of Boulder — population 105,898; about 3,937 residents per square mile across 26.9 sq mi. ZIP codes covered include 80301, 80302, 80303, 80304, 80305, 80306, 80307, 80308.
Neighborhoods served in Boulder: Downtown Boulder, University Hill, Newlands, Gunbarrel — and every surrounding area.
Areas we serve
Browse by state, then city.