"Kenmore built a rear addition that added a proper kitchen and mudroom to our 1970s colonial. The process was organized from start to finish — they handled permits, stayed on schedule, and the craftsmanship is excellent. Best investment we've made in this house."
Home Additions Built for Massachusetts Homes
From bump-outs to full second-story additions — more space, thoughtfully executed.
Home Additions Built for Massachusetts Homes
A well-designed home addition can fundamentally change how your family lives — without the cost, disruption, and uncertainty of moving. Kenmore Construction Group builds additions of all scales across Massachusetts, managing structural engineering, permitting, and finish carpentry under one roof.
Every addition starts with an honest conversation about what your property can support, what local zoning allows, and what your budget will realistically achieve. We don't oversell scope — we help you build the right addition for your specific situation.
Start a ConversationEvery Type, Built to the Highest Standard
Second-Story Additions
Maximize square footage without losing yard space. Ideal for ranch and cape-style homes, second-story additions allow us to add multiple bedrooms, bathrooms, and a primary suite in a single project.
Rear Bump-Out Additions
Extend a specific room — kitchen, living area, or primary suite — with a precisely designed bump-out that maintains your home's proportions and architectural character.
Garage Additions
Attached or detached, single or double, with optional finished living space above. We integrate garage additions cleanly with your existing roofline and exterior materials.
Sunroom & Three-Season Rooms
Bring natural light deep into your home with a glass-wrapped sunroom or screened porch addition that opens your living space to the outdoors.
Mudroom & Entryway Additions
A dedicated mudroom keeps your home organized. We design custom mudroom additions with cubbies, bench seating, utility sinks, and laundry hookups.
In-Law Suite Additions
Attached or semi-detached suites provide genuine privacy for multi-generational living — and create rental income potential under Massachusetts ADU law.
From First Call to Final Walkthrough
Site Assessment & Design Brief
We meet on-site, walk the property, assess structural constraints, and develop a design brief aligned with your goals and budget.
Design & Engineering
Our design team produces drawings and coordinates with structural engineers for code-compliant plans specific to your property and municipality.
Permitting & Approvals
We submit all permit applications, manage the municipality's review process, and handle any revisions required by the building department.
Construction
Your dedicated project manager oversees every trade on your project. You receive regular updates, direct access to your PM, and clear communication on every decision.
Final Walkthrough & Punch List
We don't close a job until the formal punch list is complete to your satisfaction. You sign off — then we sign off.
What Our Clients Say
"We wanted a second story but were nervous about the disruption. Kenmore managed the whole project while we lived below. Communication was excellent the entire time. The result is stunning."
Home Additions — FAQ
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ADU Construction
Add a separate living unit to your property for rental income or multigenerational living.
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Combine your addition with a whole-home renovation for a comprehensive transformation.
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One team managing design and construction — fewer surprises, tighter timelines.
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