
Home Additions in Provincetown, MA
Mussato Building Group designs and builds home additions in Provincetown, MA, matched to the house that is already there. 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 42 miles away, and we work across the West End, the East End, and the Commercial Street area.
- Family-owned since 2004
- Licensed + insured in MA
- 100+ projects completed
- 5.0 stars from 21 Google reviews
- BBB accredited
Adding on to a home in Provincetown
Provincetown sits at the very tip of the Cape, with historic houses close together on small lots between the harbor and the dunes.
In Provincetown, going up is often the only way to add space. Lots are small, houses sit close to the lot lines, and setbacks and lot coverage limit how far a footprint can grow, so a second floor, a dormer, or a small rear extension is often the practical choice.
The Historic District Commission reviews exterior changes in the historic district, and homes inside the Cape Cod National Seashore district face zoning limits on expansion. We draw the addition to those rules from the start, and plan deliveries for narrow streets.

“Mussato Building Group has been a loyal and trusted partner of ours for over ten years and one hundred projects. Their professionalism and quality of work are second to none. We look forward to working with them far into the future.”
Addition permits in Provincetown
We prepare the drawings, file the applications, and schedule the inspections. Here is what a project like this usually needs:
- Building permit from the Provincetown Building Department, with drawings that show how the addition ties into the existing structure.
- Zoning review of setbacks, lot coverage, and height, and a Zoning Board of Appeals hearing if the existing house does not meet today’s rules and the addition needs relief.
- Board of Health sign-off on the septic system when the addition adds a bedroom.
- Conservation Commission filing for work within 100 feet of a wetland, a pond, or a coastal bank.
- Historic District Commission approval of the exterior of the addition if the property is in the historic district.
- Room additions & second-floor additions
- Garage additions & conversions
- Sunrooms & enclosed porches
- In-law suites & bump-outs
- Living space & kitchen expansions
- Structural integration with existing home
- Permit coordination & code compliance
- Matching materials & finishes
Home Additions in Provincetown: FAQ
Do I need a permit for a home addition in Provincetown?
Yes. The Provincetown Building Department issues the building permit after a zoning review of setbacks, lot coverage, and height. We prepare the drawings and file the applications.
Do you build additions in the West End and the East End?
Yes. We build additions all over Provincetown, including the West End, the East End, and the Commercial Street area. Our base in South Yarmouth is about 42 miles away.
Can I add a second floor in Provincetown?
Often, within the height limit. In the historic district, the Historic District Commission reviews the design, and the existing framing and foundation have to carry the new floor. We check all three before drawing.
Can you match my existing siding, roof, and trim?
Yes. Matching the roof pitch, the siding and trim, and the windows of the existing house is how we build every addition.
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