Home Additions in South Shore MA

Need more space? We build quality home additions that blend seamlessly with your existing home. From sunrooms and family rooms to second-story additions, we handle design and construction to expand your living space.

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Our Home Additions Projects

See 7 completed home additions projects across South Shore Massachusetts.

1,500 Sq Ft Master Suite Addition — Whitman, MA
14 photos

1,500 Sq Ft Master Suite Addition

Whitman, MA

1,500 square feet of new spaceMaster suite with bathroomFamily room addition
Attached Garage Addition with Cedar Shake — South Shore, MA
7 photos

Attached Garage Addition with Cedar Shake

South Shore, MA

Attached one-car garageGray cedar shake sidingCarriage-style garage door
Two-Car Garage Addition — Whitman, MA
8 photos

Two-Car Garage Addition

Whitman, MA

Two-car garageLiving space aboveFull foundation work
Second Floor Addition - Cape to Colonial — West Roxbury, MA
7 photos

Second Floor Addition - Cape to Colonial

West Roxbury, MA

Cape to colonial conversionFull second floor additionGray vinyl siding
Home Addition — Dorchester, MA
9 photos

Home Addition

Dorchester, MA

Seamless integrationExpanded living spaceArchitectural matching
Kitchen Addition with Full Interior Remodel — Bridgewater, MA
10 photos

Kitchen Addition with Full Interior Remodel

Bridgewater, MA

Kitchen additionWhite shaker cabinetsFarmhouse sink
First Floor Addition with New Siding — Mansfield, MA
5 photos

First Floor Addition with New Siding

Mansfield, MA

First floor additionTan vinyl sidingLarge picture windows
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When your family outgrows your home, an addition lets you stay in the neighborhood you love while gaining the space you need. At 4 Generations, we design and build additions that look like they've always been part of your home—matching rooflines, siding, and architectural details seamlessly. From small bump-outs to second-story additions, we manage the entire process from design through construction and finishing.

South Shore Expertise

South Shore zoning varies significantly by town. Setback requirements, lot coverage limits, and height restrictions all affect what's possible on your property. We research these constraints early in the design process so you know what's feasible before investing in detailed plans. Many towns require Conservation Commission approval for properties near wetlands—common on the South Shore—and we navigate these processes regularly.

Why Choose 4 Generations for Home Additions?

  • Stay in your neighborhood—avoid moving costs and disruption
  • Custom design to meet your exact needs
  • Add significant home value with well-designed space
  • Single contractor accountability from foundation to finishes

Our Services Include:

  • Room additions
  • Second story additions
  • Sunrooms & porches
  • In-law suites
  • Garage conversions
  • Bump-outs

Ready to Get Started?

Contact us today for a free, no-obligation estimate. We'll discuss your project, answer your questions, and provide a detailed quote.

Get Free Home Additions QuoteCall (781) 424-8463

Quality Materials We Use

  • Foundations matched to soil conditions
  • Roof systems integrated with existing structure
  • Siding and trim matched to existing home
  • Energy-efficient windows and insulation
  • Complete mechanical systems (HVAC, electrical, plumbing)

Home Additions FAQs

Common questions about our services.

How much does a home addition cost?
Additions typically cost $200-400 per square foot, depending on complexity and finishes. A 400 sq ft family room addition might run $80,000-160,000. Second-story additions cost more due to structural requirements. We provide detailed estimates after assessing your property and needs.
Do I need to move out during construction?
Usually not. Most additions are built while you live in the home. We maintain dust barriers, work reasonable hours, and keep the site safe. The connection phase—when we open walls between old and new—is the most disruptive but typically lasts only a few days.
How do you match an addition to my existing home?
We carefully match rooflines, siding profiles, window styles, and trim details to your existing home. For older homes with discontinued materials, we source close matches or use complementary materials that blend with the original architecture.

Related Services

Explore our other offerings.

RoofingSidingKitchen RemodelingBathroom Remodeling

Ready for Your Home Additions Project?

Get a free estimate from the South Shore's trusted contractor.

Get Free QuoteCall (781) 424-8463

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