Our Services

Home Additions Built for Massachusetts Homes

From bump-outs to full second-story additions — more space, thoughtfully executed.

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  • MA Licensed & Fully Insured
  • We Handle All Permits & Inspections
  • Serving All of Massachusetts
  • 5-Star Rated by MA Homeowners
Why Choose Kenmore?

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.

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IMAGE: Rear addition seamlessly integrated with existing New England colonial — matching roofline, new windows, landscaped yard
What We Build

Every Type, Built to the Highest Standard

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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.

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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.

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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.

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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.

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Mudroom & Entryway Additions

A dedicated mudroom keeps your home organized. We design custom mudroom additions with cubbies, bench seating, utility sinks, and laundry hookups.

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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.

Our Process

From First Call to Final Walkthrough

01

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.

02

Design & Engineering

Our design team produces drawings and coordinates with structural engineers for code-compliant plans specific to your property and municipality.

03

Permitting & Approvals

We submit all permit applications, manage the municipality's review process, and handle any revisions required by the building department.

04

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.

05

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

★★★★★

"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."

Michael & Karen D.
Rear Addition — Lexington, MA
★★★★★

"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."

The Hoffman Family
Second-Story Addition — Newton, MA
Common Questions

Home Additions — FAQ

Timeline depends on scope. A smaller bump-out may complete in 3–5 months from permit approval. A full second-story addition typically takes 8–14 months from initial design through final inspection. Permitting timelines vary significantly by municipality.
Home additions in Massachusetts typically run $200–$450 per finished square foot, depending on structural complexity, finish level, and site conditions. A 400 sq ft bump-out might start around $120,000; a full second story can run $400,000 or more. We provide detailed itemized estimates — never ballpark guesses.
Yes. All Massachusetts home additions require a building permit and inspections at multiple stages. Zoning review covers setbacks, lot coverage, and height restrictions. Kenmore handles all permit filings and inspection coordination.
In most cases, no. We plan additions to minimize disruption to occupied areas. During specific structural phases, some areas may be temporarily off-limits, but we work hard to keep your home livable throughout construction.
It depends on your home and neighborhood. In most Massachusetts markets, primary suite additions, kitchen expansions, and in-law suites generate the strongest ROI. We'll advise on value impact during our initial consultation.
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Ready to Begin Your Home Additions Project?

Our complimentary consultation reviews your goals, assesses your property, and outlines a clear path — so you can make an informed decision.