Room additions and second-story builds in North Massapequa, NY — dormers, in-law suites, rear extensions on Levitt-era Capes and ranches.
North Massapequa's tidy lots and postwar Capes were built for smaller households than most families run today. A dormer, a rear extension, or a full second story can double your usable square footage without moving — and without leaving a neighborhood you've already put down roots in. Milton's Construction has been framing additions on Long Island for four decades, including plenty of work on the same Levitt-era stock that fills these streets.
We design, permit, and build the entire project in-house. The Town of Oyster Bay Building Department handles approvals for additions in North Massapequa, and we manage every step of that process — from initial plans through final inspection.
The Cape Cod is the most natural candidate for a second-story addition on Long Island. The roofline is already there; it's a matter of framing out dormers or raising the full plate height to create proper headroom and bedroom space upstairs. We've done this on dozens of Capes — converting cramped half-stories into full second floors with two or three bedrooms, a bath, and real closet space.
In-law suites are another frequent request, particularly in North Massapequa where multigenerational households are common. We design these as rear additions or garage conversions with a separate entrance, living area, kitchenette, and bath. The Town of Oyster Bay has specific requirements for accessory dwelling structures, and we know exactly what's required to get approval.
Additions require architectural plans and a full building permit from the Town of Oyster Bay before any ground is broken. We coordinate with a local engineer or architect when drawings are required, pull the permit, and manage all inspections from footings through final. The process is more involved than a kitchen remodel, but we've run it enough times that we don't miss steps.
Costs depend heavily on scope — a single dormer is a very different project from a full second story or a rear extension with a bathroom. A free written estimate after a site visit gives you the real number. Call or text 631-741-0199.
Levitt-era Capes and ranches on tidy lots, widely expanded and dormered over the years. Adding on in North Massapequa means matching your existing roofline and siding and working within Nassau County setback and permit rules — all of which we handle.
Permits: Additions & Extensions that's structural or moves plumbing/electrical in North Massapequa, NY is permitted through the Town of Oyster Bay Building Department. We prepare the plans, file the application, and schedule every inspection for you. See our North Massapequa building permit guide for the full process. Upland and generally flood-free — the focus is modernizing and expanding post-war homes.
Yes. We assess the existing foundation and first-floor framing to confirm it can carry the load, make any needed reinforcements, and frame the full second story with proper exterior finish to match or complement the original house.
A building permit is required, typically with engineered or architectural plans showing the proposed work. We manage the application, submit required drawings, and handle all inspections through final approval.
A straightforward dormer can be framed and weathertight in a week to two weeks; finishing the interior adds time depending on scope. A full second story typically runs three to five months from permit to final. We give you a realistic schedule at the estimate stage.
Yes. We design and build in-law suites as rear additions or garage conversions with a private entrance, living area, kitchenette, and bath. We handle the Town of Oyster Bay approval process, which includes specific rules about accessory dwelling units.
Get a free, no-obligation estimate for your project today.