Design-Build Remodeling in Wrentham, MA
Kitchens, bathrooms, basements, additions and ADUs for Wrentham homes — designed and built by one accountable team, from our office next door in Foxborough.
Wrentham is next door to our office.
Wrentham is the most rural of Foxborough’s neighbours — larger lots, older farmhouses alongside newer subdivisions, and almost no municipal sewer.
We work from 26 Patriot Place in Foxborough, and Wrentham sits on our western border. Being this close changes how a project actually runs — a site visit is a short drive rather than a scheduling exercise, and we already know how this particular building department works, which is never quite the same as the one in the next town.
ADUs in Wrentham: what the bylaw actually says
Wrentham has had an ADU bylaw since 2019 and amended it at the 2025 Annual Town Meeting to line up with the Affordable Homes Act, after the Attorney General's office asked for clarifications to the definitions and to how nonconforming lots and structures are reviewed. The town reports six ADU projects approved to date.
Wrentham is largely on septic, and that — not zoning — is usually what decides whether a unit is buildable. Under MassDEP's April 2025 guidance, your house and the new unit are treated as one system serving one facility, even if you build a separate system for the ADU. Title 5 counts 110 gallons per day per bedroom across both, so a three-bedroom house plus a one-bedroom unit is a four-bedroom load. If your existing system was sized for three, it needs upgrading before the unit can be permitted.
Parking. There is no commuter rail station in town, so the half-mile transit exemption is not available. Plan on providing the one additional off-street space the state rule requires.
Current as of September 2026, from the Wrentham Zoning Bylaw, amended at 2025 Annual Town Meeting. Bylaws change — confirm the detail with the Wrentham building department before you rely on it, or run your lot through our feasibility check and we will confirm it for you.
Sewer, septic, and what it means for your Wrentham project
Wrentham is overwhelmingly on septic, so assume Title 5 governs until proven otherwise. On a sewered lot, adding bedrooms is largely a zoning and structural question. On an unsewered one it is a Title 5 question first, and that is a harder constraint than most homeowners expect.
Title 5 sizes a septic system at 110 gallons per day per bedroom, and it counts the bedrooms in the house and any new unit together. Adding a bedroom — whether in a finished basement, an addition or an ADU — can push the total past what your system was designed for, and the upgrade has to happen before the permit issues, not after. We check this at feasibility, because finding out late is what turns a budget into a problem.
Remodeling services in Wrentham
One team carries the work from first sketch to final walkthrough — kitchen remodeling, bathroom remodeling, basement finishing, home additions, ADU design and construction, garage-to-ADU conversions and whole-home renovations, all under one design-build contract.
- Feasibility and zoning review before design begins
- Design, permitting and construction under one agreement
- Cost tested against the design as it develops, not after
- One point of contact from consultation through final walkthrough
Nearby towns we serve
From Foxborough we work across the towns on this side of Norfolk County, including Foxborough, Walpole, Sharon, Mansfield, Norfolk, and Plainville. See all towns we serve, or read the Massachusetts ADU guide for how the by-right rules work statewide.
Frequently asked questions
Can I build an ADU in Wrentham?
Yes. Wrentham has had an ADU bylaw since 2019 and amended it at the 2025 Annual Town Meeting to line up with the Affordable Homes Act, after the Attorney General's office asked for clarifications to the definitions and to how nonconforming lots and structures are reviewed. Plan on providing the one additional off-street space the state rule requires. We run the feasibility check before design so you know what your lot actually supports.
What is the permitting path in Wrentham?
Because Wrentham is largely unsewered, the Board of Health review is usually the gating item rather than the zoning review. We handle the filings and the coordination with the town as part of the project rather than leaving them to you.
Is Wrentham on sewer or septic?
Wrentham is commonly septic. It matters because Title 5 counts 110 gallons per day per bedroom across the house and any new unit together, so on an unsewered lot your existing system capacity can cap the number of bedrooms before zoning does.
Do you do kitchens and bathrooms in Wrentham, or only additions?
All of it. Kitchens, bathrooms, basements, additions, ADUs and whole-home renovations, with design and construction under one contract so there is no gap between the drawings and the build.
How does a project start?
With a design consultation — a conversation about the house, what you want it to do, and what is realistic on your lot. No obligation, and no pressure to commit to a number before you understand the scope.
Planning a Wrentham renovation?
Tell us about the house and what you want it to do. We will tell you what is possible on your lot — including when the answer is that it is not.
Schedule a Design Consultation →