Homes with in law suites — Billings, MT
Last updated: September 24, 2026
What affects the price
Building an ADU is a major project, and the final bill depends on a few key things. Site prep is a big factor; if your land is sloped or needs extensive utility connections, costs go up. The materials you choose—from siding to kitchen finishes—also change the math significantly. Whether you’re building a detached unit or converting an existing garage shifts the permit requirements and structural work needed. We provide exact pricing confirmed free on the call.
About this service
A home with an in-law suite includes a private, self-contained living area for family members, often attached to the main residence. If you want to keep aging parents or adult children close while maintaining everyone's privacy, this is the solution. We help you design these spaces to blend with your current home layout.
Frequently asked in Billings
What are the options for a detached accessory dwelling unit in Billings?
What is involved in ADU construction in Billings?
Who are the accessory dwelling unit companies in Billings?
Can I get a prefab ADU in Billings?
Who is an ADU builder in Billings?
What are affordable ADU options in Billings?
Where can I find accessory dwelling unit homes in Billings?
Also serving nearby: Salt Lake City · West Valley City · Sandy · West Jordan · Fort Collins
More on this: HUD ADU resources — ADU policy and financing research.
Service area details
Serving all of Billings — population 120,864; about 2,652 residents per square mile across 45.6 sq mi. ZIP codes covered include 59101, 59102, 59103, 59104, 59105, 59106, 59107, 59108.
Neighborhoods served in Billings: Blue Creek, Lockwood, Billings Heights, Pompeys Pillar, Custer — and every surrounding area.
Areas we serve
Browse by state, then city.