Custom 3-season and 4-season sunroom additions built to match your Holmdel home — real construction, not a bolted-on kit. You talk to Adam, the owner, from first walk-through to final inspection.
Holmdel’s homes — from wooded estate lots to established colonial neighborhoods — reward a sunroom that’s built as a true addition, matched to the existing rooflines, siding, and trim. We design each room to read as part of the house, not an afterthought clipped onto the back, so it adds real living space and real resale value.
Whether you want a bright 3-season room for spring through fall or a fully insulated 4-season addition you can heat and use in January, we’ll help you choose based on how you actually plan to live in the space — morning coffee, a year-round sitting room, or a sunlit spot for the kids.
A 3-season room for spring-through-fall, or a fully insulated 4-season addition you can heat and use in January. We help you pick based on how you’ll actually use it.
We build sunrooms that match your Holmdel home’s rooflines and finishes — a true addition, not a prefab kit clipped to the back wall.
Sunrooms are a permitted structural addition in NJ. We manage zoning, the construction permit, and inspections with the Holmdel office from start to finish.
Every sunroom is engineered and finished to match your home and your climate goals.
A sunroom is a structural addition under the NJ Uniform Construction Code, so it needs a construction permit and zoning review through the Holmdel township office — including setback and lot-coverage checks on larger wooded lots. We handle the full permitting process and inspections so the project moves cleanly from drawings to finished room.
You work directly with Adam, the owner — no call centers, no franchise reps. He’ll come look at your property and give you an honest quote, free of charge.
Request a Free QuoteBased in Old Bridge, NJ, Legion Build serves homeowners across central New Jersey and the Jersey Shore.
Cost depends on size, whether it’s a 3-season or insulated 4-season build, foundation work, and finishes. Three-season rooms are the more affordable starting point; 4-season additions cost more because of insulation, HVAC, and full-code construction. Our sunroom cost calculator gives a quick range, or Adam can give you an exact number on-site.
A 3-season room is great spring through fall but isn’t built to be heated efficiently in deep winter. A 4-season sunroom is fully insulated with energy-efficient glass and its own heating and cooling, so it’s comfortable year-round in New Jersey. We help you pick based on how you’ll use it.
Yes. Sunrooms are a permitted structural addition in NJ. We file the construction permit, handle zoning and setback review with Holmdel township, and manage all inspections.
That’s the point of building it as a real addition. We match rooflines, siding, and trim so the sunroom looks original to the home rather than like a prefab kit.
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