Wellesley, Massachusetts
Kitchen, Bath & ADU Remodeling in Wellesley
Boston KBA plans and builds kitchens, bathrooms, additions, ADUs and whole-home renovations in Wellesley. We bring careful planning and finish work to established homes on generous lots.

Representative photograph. Not a Boston KBA project.
Remodeling in Wellesley
Established homes ready for their next chapter.
Wellesley is known for its established neighborhoods, from Wellesley Hills and Wellesley Farms to the streets around Wellesley Square. Many homes are Colonials, Tudors and capes built in the first half of the twentieth century, with later additions.
Those houses often have good bones and generous lots, which makes them strong candidates for kitchen expansions, primary suites, finished lower levels and, now, accessory dwelling units.
We help Wellesley homeowners plan work that fits the character of the house and the expectations of the neighborhood.
Services in Wellesley
What we build in Wellesley.
Kitchens, primary bathrooms, additions and whole-home renovations are common here, along with basements and ADUs.
- Kitchen RemodelingComplete kitchens planned around how you cook, gather and live.
- Bathroom RemodelingFull bathroom renovations, from powder rooms to primary suites.
- ADU ConstructionDetached, attached and conversion ADUs, planned for Massachusetts rules.
- Whole Home RemodelingMulti-room renovations designed and built as one coherent project.
- Basement RemodelingFinished lower levels for living, working and guests.
- Home AdditionsAdditions that feel original to the house, inside and out.
Local planning
What to know before remodeling in Wellesley.
Wellesley has its own permitting process and a demolition review bylaw.
Permits
Building, electrical and plumbing permits are issued by the Town of Wellesley. Additions and structural work need plans.
Demolition review
Wellesley’s Demolition Review Bylaw can apply when a project demolishes all or part of an older building, and may add time before a permit is issued.
Zoning
Setbacks, height and lot coverage shape what additions are possible, and larger projects can trigger additional review.
ADUs in Wellesley
Under the 2025 state law, one ADU of up to 900 square feet, or half the size of the main home if smaller, is allowed by right in single-family zoning districts. Wellesley can still apply local rules such as setbacks and site plan review, so we check them for your lot.
Older homes
Many Wellesley houses predate 1978, so lead-safe work practices apply.
Neighborhoods
Remodeling across Wellesley.
We work throughout town.
- Wellesley HillsColonials, Tudors and Victorians near the Hills village center.
- Wellesley FarmsEstablished homes on larger lots.
- Wellesley SquareOlder homes close to the town center.
- Wellesley Lower FallsOlder houses near the Charles River.
Questions
Remodeling in Wellesley: common questions
Do I need a permit to remodel in Wellesley?
Most kitchen, bathroom, basement and addition projects need building, electrical and plumbing permits from the Town of Wellesley.
Does the Demolition Review Bylaw affect remodeling?
It can, when a project demolishes all or part of an older building. Most interior remodels are not affected. We check early so the schedule is realistic.
Can I build an ADU in Wellesley?
Under the 2025 state law, one ADU is allowed by right in single-family zoning districts, subject to reasonable local rules. We review your lot and Wellesley’s requirements before design.
Do you build additions in Wellesley?
Yes. Kitchen expansions, primary suites and mudrooms are common projects. We start with a zoning and feasibility review.
How much does a remodel cost in Wellesley?
It depends on the project type, scope, finishes and the condition of the house. Use the project planner to describe your project, and we will follow up with a personalized estimate.
Plan your Wellesley remodel.
Tell us about your home and your project. We will follow up to talk through scope, approvals and budget.