Single Family

123 Old Post Drive

Active · Islip · Suffolk County, NY 11788

Asking price$895,000Estimate monthly payment Request a Showing

Bedrooms: 4 Beds
Bathrooms: 3 Baths
Year built: 1976
Est. monthly taxes: $1,248.92

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About this home

Welcome to 123 Old Post Drive, a spacious and beautifully maintained 4-bedroom, 3-bath Colonial set on an oversized property in the heart of Hauppauge. This inviting home features a formal living room, formal dining room, and a warm and comfortable family room with a wood-burning fireplace. The bright kitchen offers generous cabinetry, ample counter space, and stainless-steel appliances. Beautiful hardwood floors, Pella and Andersen windows, and generously sized rooms add to the home’s appeal. A fully finished basement provides valuable additional living and entertaining space, while the 2-car garage and generator hookup offer added convenience. Set on an oversized lot with plenty of room to enjoy the outdoors, this home offers the perfect combination of space, comfort, and classic charm.

Listing snapshot

Days on site: 35 days
Listed on MLS: Sep 23, 2026
Full baths: 2
Half baths: 1
Annual property tax (MLS): $14,987
Tax year: 2025
Area source (MLS): Plans
Listing brokerage: BERKSHIRE HATHAWAY
MLS ID: KEY1053764
Last updated: Oct 10, 2026

General features

Property type: Single Family
Property subtype: Single Family Residence
Year built: 1976
Garage: Yes
Garage spaces: 2
Parking: Driveway, Garage
Water source: Public
Sewer: Cesspool
Utilities: Cable Available

Interior features

Basement: Finished, Full
Heating: Baseboard
Cooling: Central Air
Interior: Eat-in Kitchen, Formal Dining, Primary Bathroom
Appliances: Dishwasher, Refrigerator
Fireplace: Yes
Fireplaces: 1

Exterior features

Architectural style: Colonial
Construction materials: Vinyl Siding
Private pool: No

Schools (MLS)

Elementary school: Bretton Woods Elementary School
Elementary school district: Hauppauge
Middle school: Hauppauge Middle School
Middle school district: Hauppauge
High school: Hauppauge High School
High school district: Hauppauge

School information is provided by the MLS. Confirm attendance eligibility with the school district.

Recent activity

Oct 10, 2026Listing updated from MLS
Oct 5, 2026Price changed to $895,000
Sep 23, 2026First seen on this site
Sep 23, 2026MLS status changed

Location

Islip · Suffolk County, NY 11788Show interactive map

123 Old Post Drive

Islip · Suffolk County, NY 11788

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Loan detailsFixed-rate, fully amortizing loan. Edit the assumptions below; no market rate is supplied.

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Property expenses (USD)

Annual property taxMonthly association / maintenance fees

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Listing data is supplied by the MLS and may change without notice.

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