The Trusted ADU Builder in MetroWest Massachusetts
MetroWest ADU, by Remodart Corp, designs, permits, and builds accessory dwelling units that add living space, house family, and generate rental income — backed by 26+ years of licensed Massachusetts construction experience.
Looking for an experienced ADU builder in MetroWest Massachusetts? MetroWest ADU, operated by Remodart Corp, specializes exclusively in accessory dwelling unit design, permitting, and construction for homeowners across Marlborough, Natick, Framingham, Sudbury, Wellesley, and the surrounding MetroWest towns. Whether you're adding a detached backyard cottage, converting a garage, finishing a basement, or building an in-law suite, our team manages the entire process — from zoning review through final inspection — so your project stays on schedule and code-compliant from day one.
Backed by Remodart Corp's 26+ years as a fully licensed and insured Massachusetts general contractor (HIC-194346, CS-116371), MetroWest ADU brings established project management, transparent communication, and craftsmanship to a building category that rewards experience: navigating local zoning, Massachusetts building code, and the state's 2025 ADU regulations.
ADU Types We Design & Construct
Every property is different — we help you choose the ADU type that fits your lot, budget, and goals.
Detached ADU
A standalone backyard cottage or studio, fully independent from the main house — ideal for rental income or private guest space.
Garage Conversion
Transform an existing garage into a fully livable unit — often the most cost-effective path to a compliant ADU.
Basement / Attic ADU
Finish unused basement or attic space into a self-contained unit with its own entrance, kitchen, and bath.
In-Law Suite
Attached or connected living space designed for aging parents or family members who want independence nearby.
Rental-Income Unit
Purpose-built ADUs designed to maximize long-term rental income and add resale value to your property.
Backed by 26+ Years of Licensed Massachusetts Construction
MetroWest ADU isn't a subcontractor network or a lead-generation site — it's a specialized ADU division of Remodart Corp, a fully licensed and insured general contractor that has managed roofing, additions, kitchens, and full renovations across Massachusetts for over 26 years.
That means your ADU project gets real project management: permitting expertise, code-compliant construction, and a single accountable team from first zoning check to final inspection.
Get a Free ConsultationFrom Zoning Check to Final Inspection
A clear, five-step process designed around Massachusetts' ADU permitting requirements.
Zoning & Feasibility Check
We review your lot, local bylaws, and the statewide ADU rules to confirm what's possible before any design work begins.
Design
We design the ADU around your goals — rental income, in-law living, or added space — and your property's constraints.
Permitting
Our team prepares and submits building, plumbing, electrical, and zoning applications, and manages the review process with your town.
Construction
Licensed crews build to Massachusetts code, with clear milestones and communication throughout.
Final Inspection
We coordinate final building inspections and occupancy sign-off, so your ADU is ready to use or rent.
Massachusetts' 2025 ADU Law: What Homeowners Should Know
In August 2024, Massachusetts enacted the Affordable Homes Act, and its ADU provisions took effect statewide on February 2, 2025. Under the law, homeowners in single-family zoning districts can now build one ADU — up to 900 square feet or 50% of the primary home's size, whichever is smaller — by right, without a special permit or discretionary zoning approval in most cases.
Local rules on setbacks, septic systems, and site plan review can still apply, which is why working with an experienced ADU builder who understands both the state law and your specific town's bylaws matters. MetroWest ADU handles this review as the first step of every project.
Serving Homeowners Across MetroWest Massachusetts
Ways to Fund Your ADU Project
An ADU is a long-term investment that can add rental income and home value. We'll walk you through the common financing paths homeowners use, and connect you with lenders experienced in ADU projects.
- Home equity loans or HELOCs
- Cash-out refinancing
- Renovation and construction loans
- Massachusetts ADU incentive programs (as available)
Ask Us About Financing
We're not a lender, but we can help you understand typical project costs upfront and point you toward financing options homeowners commonly use for ADU construction.
Talk to Our TeamWhat MetroWest Homeowners Say
"Add a real client review here about the design and permitting process."
— Homeowner, Natick MA
"Add a real client review here about communication and project timeline."
— Homeowner, Framingham MA
"Add a real client review here about the finished ADU and rental income results."
— Homeowner, Marlborough MA
Frequently Asked Questions
How much does an ADU cost to build in Massachusetts?
Cost depends heavily on ADU type, size, and site conditions — a garage conversion typically costs less than a new detached unit. We provide a detailed, itemized estimate after an on-site assessment during your free consultation.
How long does the ADU permitting and construction process take?
Timelines vary by town and project scope, but most projects move from initial zoning review through construction in several months. Massachusetts' 2025 by-right ADU law has shortened permitting timelines in many communities by removing special permit requirements.
Do I need a special permit to build an ADU?
In most single-family zoning districts, no. Since February 2, 2025, Massachusetts law requires municipalities to allow one ADU by right, up to 900 square feet or 50% of the primary home's size. Local rules on setbacks, parking, and septic can still apply.
Can an ADU generate rental income?
Yes. A well-designed ADU can be rented long-term, subject to your town's short-term rental rules and the terms of the state law. Many homeowners build an ADU specifically to offset their mortgage with rental income.
How do I finance an ADU?
Common options include home equity loans, HELOCs, cash-out refinancing, and renovation loans. We can walk through typical costs so you can discuss financing with your lender with clear numbers in hand.
Ready to Discuss Your ADU Project?
Schedule a free consultation with MetroWest ADU, by Remodart Corp, and get a clear picture of what's possible on your property.