Basement In-Law Apartment

In-law Apartments in Your Basement Near Islip, Smithtown, Brookhaven

In-Law Apartment

Best addition option. Need extra living space? Finishing your basement can cost just half of what you'd pay to build an addition.

An in-law apartment can be the perfect solution for older relatives who you want to remain close to you. Kuhn Construction installs beautiful, new in-law apartments that will not only provide you with extra space, but will enhance the overall value of your home and keep your basement healthy.

In-law basement apartments is a beneficial alternative to creating an addition on your home, saving you the hassle, expense and time consumption.

We build in-law apartments for basements throughout the Suffolk & Nassau County area. Call us today for a free quote on your basement finishing project!

Basement in-law apartment ideas

Transforming an unfinished basement into an apartment or suite definitely qualifies as a major home makeover. When choosing to work with Kuhn Construction, you can be confident that all code and safety requirements will be met in this new space along with friendly, attentive service. You’ll also benefit from our expert design consultation that will help you customize your basement apartment to suit the needs of in-laws or other residents. Here are a few design ideas for an in-law apartment:

Barrier Free Bathroom

An accessible bathroom can be a good idea for an in-law apartment. Photo courtesy of Kohler.

Barrier-free bathroom

Older people and individuals with disabilities often require special features in a bathroom, such as grab bars and curbless shower stalls.

Fortunately, a wide range of bathroom fixtures are available for differently abled folks.

It’s less expensive to incorporate these fixtures during new bathroom construction than to retrofit them at a later date.


Adding a doorway helps to isolate basement noise and provide privacy.

Enclosed interior stairway

Privacy and soundproofing are important when you create a basement apartment.

That’s why you might want to enclose the bottom of the basement’s interior stairway.

This treatment creates an entry vestibule at the base of the stairs – an extra layer of separation between the apartment and the house.

A SaniDry™ dehumidifier will keep your basement dry and mold-free

Temperature & humidity control

No matter who is living in your basement apartment, you'll want them to be comfortable. An economical way to provide heat in a basement apartment is to install electric baseboard units that can be controlled by a thermostat. But to hold that heat in and reduce your heating costs, you'll need to insulate your basement's foundation walls with rigid foam insulation.

The best way to keep humidity levels in check is to rely on a SaniDry® dehumidifier from Basement Systems. This ENERGY STAR® dehumidifier is designed to automatically maintain the humidity level you select, while also removing dust and other particulate irritants from basement air.

Looking for a price? Get a no cost, no obligation free estimate.

our service area

We serve the following areas

  • Albertson
  • Atlantic Beach
  • Baldwin
  • Bellmore
  • Carle Place
  • Cedarhurst
  • East Meadow
  • East Rockaway
  • Elmont
  • Floral Park
  • Franklin Square
  • Freeport
  • Garden City
  • Glen Cove
  • Glen Head
  • Glenwood Landing
  • Great Neck
  • Greenvale
  • Hempstead
  • Hewlett
  • Hicksville
  • Inwood
  • Island Park
  • Jericho
  • Lawrence
  • Levittown
  • Long Beach
  • Lynbrook
  • Malverne
  • Manhasset
  • Merrick
  • Mineola
  • New Hyde Park
  • Oceanside
  • Old Westbury
  • Point Lookout
  • Port Washington
  • Rockville Centre
  • Roosevelt
  • Roslyn
  • Roslyn Heights
  • Sea Cliff
  • Seaford
  • Uniondale
  • Valley Stream
  • Wantagh
  • West Hempstead
  • Westbury
  • Williston Park
  • Woodmere
Our Locations:

Kuhn Construction
417 Main St
Islip, NY 11751
Service Area
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