Skip to main content

MLS ID KEY1064509Last updated Oct 26, 2026

Single Family

12 17th Avenue

Active · Islip · Suffolk County, NY 11779

Bedrooms
4 Beds
Bathrooms
2 Baths
Year built
1968
Est. monthly taxes
$1,059.33
Property gallery0 / 33
Loading photo…Photo unavailable

About this home

Welcome to this beautifully updated 4-bedroom, 2-bathroom Colonial in the highly sought-after Connetquot School District. This move-in-ready home features a bright and open main level with generous living spaces. Enjoy cooking in the gourmet eat-in kitchen boasting premium granite countertops, a large center island, and stainless steel appliances. The first floor is completed with a dedicated laundry room/home office and full bath with private side entrance. The second floor leads to four bedrooms with hardwood floors throughout, a large full bathroom and pull down attic. Additional living space is available in the versatile, finished basement—ideal for a gym/office or recreation area. Sliding doors lead to the fully fenced backyard retreat, featuring a semi-inground pool, an expansive concrete/paver patio with gazebo, perfect for entertaining. Some premium upgrades include - a newer roof, solar panels, a brand-new cesspool, 200-amp electrical panel, heating system/oil tank and new front bay windows. Enjoy modern comforts like recessed lighting, built-in surround sound, a new first-floor ductless split system, and a second-floor Central AC system (2025). Ideal location, just minutes away from the Ronkonkoma LIRR station, LIE and Smith Haven Mall for effortless commuting, shopping, and dining. Don't miss out on making this house your home sweet home!

Listing snapshot

Days on site
8 days
Listed on MLS
Oct 22, 2026
Full baths
2
Half baths
0
Annual property tax (MLS)
$12,712
Tax year
2026
Area source (MLS)
Public Records
Listing brokerage
BH&G R E Realty Connect
MLS ID
KEY1064509
Last updated
Oct 26, 2026

General features

Property type
Single Family
Property subtype
Single Family Residence
Year built
1968
Garage
Yes
Garage spaces
1
Parking
Driveway
Water source
Public
Sewer
Cesspool
Utilities
Cable Available, Electricity Connected

Interior features

Basement
Finished, Partial
Heating
Baseboard, Oil
Cooling
Central Air, Ductless
Interior
First Floor Full Bath, Eat-in Kitchen, Formal Dining, Granite Counters, Kitchen Island, Open Kitchen
Appliances
Dishwasher, Dryer, Electric Water Heater, Microwave, Range, Refrigerator, Stainless Steel Appliance(s), Washer
Fireplace
No

Exterior features

Architectural style
Colonial
Construction materials
Brick
Private pool
Yes

Schools (MLS)

Elementary school
Helen B Duffield Elementary School
Elementary school district
Connetquot
Middle school
Ronkonkoma Middle School
Middle school district
Connetquot
High school
Connetquot High School
High school district
Connetquot

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

Recent activity

  1. Listing updated from MLS
  2. MLS status changed
  3. First seen on this site

Location

Islip · Suffolk County, NY 11779Show interactive map
12 17th Avenue

Islip · Suffolk County, NY 11779

Google Maps directions

Estimate monthly payment

Loan detailsFixed-rate, fully amortizing loan. Edit the assumptions below; no market rate is supplied.
Property expenses (USD)
MLS amounts are prefilled when available and can be edited. Confirm what fees include. Unknown fee frequencies cannot be converted automatically.Property expenses: MLS values where available; missing values stay blank.

Estimated monthly principal & interest—

Monthly property taxNot provided

Monthly association / maintenance feesNot provided

Estimated monthly total of entered costs—

Excludes insurance, mortgage insurance, special assessments and lender fees. MLS taxes may reflect abatements or exemptions and can change.

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