Home Additions — South Jersey, NJ

More Space. Same Home. Better Life.

Home Addition Contractor in South Jersey, NJ

Moving is expensive, disruptive, and you still might not end up with exactly what you need. A home addition gives you the space you want without leaving the neighborhood you chose, the school district you're in, or the home you've already made your own. Legacy Contracting designs and builds home additions across South Jersey — room additions, in-law suites, sunrooms, second floors, and finished basements that add real square footage and real value.

We handle every phase: design consultation, permits, foundation, framing, mechanicals, insulation, drywall, and finish work. One contractor, one crew, one phone number. We spend your money like it's our own — because we know what it took to earn it.

Call or text (856) 519-5822 to schedule a free consultation.

Home addition contractor South Jersey NJ – room additions, sunrooms, in-law suites
Addition Photo

Our Addition Services

Room addition contractor South Jersey NJ

Room Additions

Garage conversion South Jersey NJ

Garage Conversions

Sunroom addition South Jersey NJ

Sunrooms & Conservatories

In-law suite addition South Jersey NJ

In-Law Suites & Extensions

Serving All of South Jersey

We build home additions throughout Camden, Gloucester, and Burlington counties — Moorestown, Cherry Hill, Runnemede, Mount Laurel, Marlton, Voorhees, Medford, Washington Township, Sewell, Mullica Hill, Haddon Heights, and surrounding communities.

Frequently Asked Questions — Home Additions

How much does a home addition cost in South Jersey?

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A basic room addition typically starts around $150–$250 per square foot. A full second-story addition or in-law suite with its own bathroom and mechanicals will be higher. We give you a detailed, transparent estimate before anything starts — no surprises.

How long does a home addition take?

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A straightforward room addition typically takes eight to fourteen weeks from permit approval to final walkthrough. Larger projects like second-story additions or in-law suites can run four to six months. We build a realistic schedule before breaking ground.

Do home additions require permits in New Jersey?

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Yes — any structural addition to a home in New Jersey requires a permit. We handle the permit application, coordinate required inspections, and make sure the project is fully code-compliant.

Do you handle the full project or just framing?

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Full project — foundation through finish. We coordinate all trades (electrical, plumbing, HVAC) and handle everything from demolition of the existing wall to the final coat of paint. You don't need to manage multiple contractors.

Ready to add space to your home?

Call (856) 519-5822 or send us a message — free consultation, no obligation.

Ready to Build?

Same crew, same standards, same accountability on every job. We spend your money like it's our own — because we know what it took to earn it.

Get a Free Estimate

What South Jersey Homeowners Are Saying

5.0Average Rating
Rated across Google & Facebook

Well done guys. Thanks for the friendly service and saving not only my deck but my house. Would absolutely recommend Legacy to anyone looking for quality work done right.

Fabulous job. Very detail oriented and efficient. The crew was professional from start to finish and the final product exceeded expectations. I would not hesitate to recommend them.

Great work and the final product was beautiful. They communicated clearly throughout — we always knew what was happening and when to expect the crew.

Great service, super friendly. They treated my home like it was their own — that's exactly what you want from a contractor. I'll definitely use them for other jobs in the future.

Great group of people. Never had a bad experience. Hired them twice — both times the crew showed up on time, worked clean, and left the property in better shape than they found it.

Experience was refreshingly informal — the team kept things casual and clear. No sales pressure, no runaround. They quoted it, built it, and it looks exactly like we discussed.