Homes with in law suites — 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
A home with an in-law suite includes a dedicated space designed for extended family members, often featuring a private entrance and small kitchenette. You need this when you want to keep aging parents or adult children close while maintaining everyone's personal privacy. The total cost to add such a suite fluctuates based on plumbing requirements and the complexity of the interior layout. Exact pricing confirmed free on the call.
Frequently asked in Boulder
Who are accessory dwelling unit contractors in Boulder?
What are backyard accessory dwelling units like?
Where can I find accessory dwelling unit builders in Boulder?
Can I get information on accessory dwelling units in New Hampshire?
What ADU services are available in Boulder?
What is a detached accessory dwelling unit?
Are affordable accessory dwelling units an option?
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, Pearl Street, University Hill, Mapleton Hill, Chautauqua — and every surrounding area.
Areas we serve
Browse by state, then city.