Room additions and in-law suites in Central Islip, NY — second stories, rear extensions, accessory dwellings. Licensed GC, 631-741-0199.
Central Islip is home to a lot of multigenerational families, and the demand for in-law suites and accessory living spaces here is real and consistent. The existing housing — ranches, Capes, the occasional split — often has room on the lot or in the roofline to add meaningful living space without moving to a bigger house.
Milton's Construction has been building additions in central Suffolk for four decades. We handle everything from a modest rear room extension to a full second-story addition or detached accessory dwelling unit, all permitted through the Town of Islip Building Division and built by our in-house crew.
The most common requests we see in Central Islip are rear extensions to open up a cramped first floor, dormer additions on Capes to make the upstairs livable, full second-story additions on ranches, and in-law suites that give a family member independent living space while staying on the same property.
In-law and accessory suites here typically include a private entrance, a bedroom, a bathroom and a kitchenette or small kitchen. We design and build the space to meet Town of Islip zoning and building code requirements, including egress, fire separation and separate electrical metering where required.
Every addition in Central Islip goes through the Town of Islip Building Division — site plan review, building permit, framing inspection, rough mechanical inspections and final certificate of occupancy. We manage every step of that process, including working with your surveyor if an updated plot plan is needed.
Addition costs vary considerably based on size, story count and finish level. A single-room rear addition typically starts in the sixties; a full second story or in-law suite with kitchen and bath runs higher. We provide a free written estimate with line-item detail so you know exactly what you're committing to.
In most cases yes. We review your lot, existing footprint and Town of Islip zoning during the estimate visit. Many properties in Central Islip can accommodate either an attached addition with a private entrance or a detached accessory structure, depending on lot size and setbacks.
A straightforward single-room addition runs three to five months from permit approval to final inspection. A second-story addition or in-law suite with full bath and kitchen takes five to eight months. We give you a realistic schedule in writing before work starts.
Yes, completely. We prepare or coordinate the drawings, file the application, respond to any building department comments, and schedule and attend every required inspection through to the certificate of occupancy.
Get a free, no-obligation estimate for your project today.
