Accessory dwelling unit cost — Lowell, MA
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
Total costs are influenced by the complexity of your site, the square footage of the unit, and the specific utility upgrades needed to support a new home. Choosing between a prefab unit and a custom build also changes your bottom line. We provide exact pricing confirmed free on the call.
Frequently asked in Lowell
What are the permit requirements for ADU construction in Lowell?
How do I find an ADU company in Lowell?
What is the cost to build an accessory dwelling unit in Lowell?
Are backyard accessory dwelling units allowed in Lowell?
What are the steps for accessory dwelling unit construction in Lowell?
Can I get an ADU quote for my home in Lowell?
Yes, you can easily get an ADU quote in Lowell. Just call the provided number. A licensed pro will listen to your needs and property details. They can often give you a preliminary idea of costs. For a precise quote, they'll schedule a site visit. It’s a no-obligation step.
What is the cost to build an accessory dwelling unit in Massachusetts?
Also serving nearby: Lawrence · Nashua · Cambridge · Newton · Lynn
More on this: HUD ADU resources — ADU policy and financing research.
Service area details
Serving all of Lowell — population 114,296; about 8,397 residents per square mile across 13.6 sq mi. ZIP codes covered include 01850, 01851, 01852, 01853, 01854.
Neighborhoods served in Lowell: The Acre, Centralville, Pawtucketville, South Lowell, The Highlands — and every surrounding area.
Areas we serve
Browse by state, then city.