ADU Builder in Truro, MA
Mussato Building Group designs, permits, and builds ADUs in Truro, MA, from detached guest cottages to in-law suites and garage conversions. We are a family-owned general contractor founded in 2004, with more than 100 projects completed and a 5.0 rating from 21 Google reviews. Our base in South Yarmouth is about 32 miles away, and we work across Truro and North Truro.
- Family-owned since 2004
- Licensed + insured in MA
- 100+ projects completed
- 5.0 stars from 21 Google reviews
- BBB accredited
Building an ADU in Truro
Truro is one of the quietest towns on the Cape, and most of its land lies inside the Cape Cod National Seashore.
State law allows one ADU of up to 900 square feet by right on most single-family lots, and that includes Truro. What usually decides the project here is the lot and the septic system: an ADU with a bedroom adds to the bedroom count the system has to carry under Title 5, so we start with the Truro Board of Health.
Inside the Seashore district of Truro, zoning limits new structures more than elsewhere in town, so whether an ADU fits on a Seashore lot is the first thing we confirm.
In a town with many summer homes, an ADU often becomes the guest cottage that lets family visit Truro without crowding the main house.
“As the General Manager of Pretty Picky Properties I’ve had the pleasure of working with Joe and his team for nearly 10 years. Joe’s carpentry skills are unmatched. He’s always respectful, finishes on time, priced well, and transparent from start to finish. You will not regret hiring Mussato Building Group.”
ADU permits in Truro
We prepare the drawings, file the applications, and schedule the inspections. Here is what a project like this usually needs:
- Building permit from the Truro Building Department, and a certificate of occupancy at the end.
- Review by the Truro Board of Health of septic capacity under Title 5 if the ADU adds a bedroom.
- Zoning review of setbacks, height, and lot coverage under the Truro zoning bylaw.
- Conservation Commission review if the ADU is within 100 feet of a wetland, coastal bank, dune, or salt marsh.
- Flood-zone design if FEMA maps the lot in an AE or VE zone.
- Seashore district zoning review if the lot is inside the Cape Cod National Seashore.
- Detached ADUs and guest cottages
- Attached ADUs and in-law suites
- Garage and lower-level conversions
- Kitchens and bathrooms sized for small spaces
- Foundations, framing, and exteriors matched to the main house
- Heat, hot water, and electrical for a second dwelling
- Zoning, septic, and permit coordination
- Site work and paths between the houses
ADU Builder in Truro: FAQ
Can I build an ADU in Truro?
In most cases, yes. State law allows one ADU of up to 900 square feet, or half the size of the main house if that is smaller, by right on single-family lots in Truro. Setbacks, septic capacity, and conservation rules still apply, so we check your lot first.
Do you build ADUs in Truro and North Truro?
Yes. We build detached and attached ADUs all over Truro, including Truro and North Truro. Our base in South Yarmouth is about 32 miles away.
Will my septic system handle an ADU in Truro?
Truro homes are on septic systems, so a new bedroom always starts with the septic design. On septic, Title 5 sizes the system by bedroom count, so an ADU with a bedroom can mean a septic upgrade. The Truro Board of Health reviews it before the building permit.
Can I rent out an ADU in Truro?
Long-term rentals are allowed, and the town cannot require you to live on the property. Short-term rentals of an ADU can be restricted by the town, so check the Truro rules before you plan on summer rentals.
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