An accessory dwelling unit adds real value to a property in a market where space is limited and demand is high — rental income, a place for aging parents or adult children, or simply more usable square footage without moving. As a licensed ADU builder, US Pro Paint & Renovation designs and builds ADUs across the South Shore, Greater Boston, and Cape Cod, and in addition, manages site evaluation, permitting, construction, and finishes under one contract.
By JR Reis, Owner & President · Last updated July 2026
A fully standalone structure separate from the main house, therefore offering the most privacy and design flexibility for rental or multigenerational use.
An addition connected to the main home, often used for aging parents or adult children who want their own space while staying close.
We convert an existing garage into a livable unit which would be a cost-effective option, since the structure and foundation are already in place.
Converting a basement into a legal, code-compliant living unit with its own entrance, kitchen, and bathroom.
Building a new living space above an existing or new garage structure adds square footage, without expanding the home's footprint.
ADUs designed specifically for rental income, with layout and finish decisions that support durability and tenant turnover.
We assess your property layout, zoning requirements, utility access, and goals to determine the best ADU design for your space.
A detailed ADU layout is created, and we handle architectural drawings, code compliance, and permit applications for a smooth approval process.
We build a structurally sound foundation and frame the ADU with quality materials, installing plumbing, electrical, and HVAC to code.
Flooring, drywall, cabinetry, lighting, and fixtures are installed to create a beautiful, functional living space.
A rigorous inspection confirms safety, performance, and finish quality before the project is complete.
ADU construction in Massachusetts typically runs $150,000–$400,000+, depending on size, site conditions, and finish level.
Primary Service Area (South Shore — closest to our Hingham headquarters): Hingham, Quincy, Weymouth, Braintree, Cohasset, Scituate, Norwell, Hanover, and Marshfield.
Secondary Service Area (Greater Boston & Cape Cod): Cambridge, Newton, Plymouth, Wellesley, Needham, Dedham, and towns across Cape Cod.
See the full list of towns and cities we serve.
An accessory dwelling unit (ADU) is a secondary, self-contained living space on a residential property — a detached backyard cottage, an attached in-law suite, a garage conversion, or a basement unit — complete with its own entrance, kitchen, and bathroom.
Typically $150,000 to $400,000+, depending on size, site conditions, foundation type, and finish level. We provide free on-site consultations that include a realistic cost range before any design or permit work begins.
Yes — an ADU is widely considered one of the strongest home improvements for resale value, particularly in high-demand markets like the South Shore and Greater Boston, where housing inventory is tight. A well-built ADU adds rental income potential, multigenerational living flexibility, and measurable value to a property’s assessment.
Everything: site evaluation, architectural design, permit applications, foundation and framing, plumbing, electrical, HVAC, interior build-out, and final inspection. We handle every phase with one point of contact from consultation through turnover.
Are they licensed and insured in Massachusetts? Have they built ADUs in your specific municipality before? Who handles permits? What’s included in the contract scope? Do they use subcontractors, and who manages them? We’re fully licensed and insured, handle all permits in-house, and bring 23+ years of construction experience to the table.
Common options include home equity loans, HELOCs, cash-out refinancing, and construction loans. Some Massachusetts municipalities also offer ADU-specific financing or grant programs. We partner with financing providers and can help connect you with options that fit your situation.
Typically 6 to 12 months from initial consultation through move-in, depending on permit approval timelines, site complexity, and finish scope. We manage every phase under one contract so there’s a single point of contact throughout.
From zoning questions through final turnover, we manage the entire process under one contract — so you’re not coordinating between separate designers, permit expediters, and builders.
Get Your Free Estimate or call (617) 922-6305 to get started.
