21 Bay 3rd Street, Islip, NY 11751

Islip
Local realty services provided by:Better Homes and Gardens Real Estate Dream Properties
21 Bay 3rd Street,Islip, NY 11751
$599,995
  • 2 Beds
  • 1 Baths
  • 1,188 sq. ft.
  • Single family
  • Active
Upcoming open houses
  • Sun, Aug 09
    12:00 pm - 02:00 pm
Listed by: steven j. rainone cbr sres, maryann rainone
Office: netter real estate inc
MLS#:1023939
Source:OneKey MLS

Price summary

  • Price:$599,995
  • Price per sq. ft.:$417.82

About this home

Welcome to this charming 1930 Cape Cod located mid-block in the desirable St. Marks neighborhood south of Montauk Highway. Filled with character and thoughtful updates, this home features original built-ins in the kitchen, dining room, and primary bedroom, hardwood floors in the living and dining room, and a beautifully renovated bathroom with classic octagon ceramic tile. Four energy-efficient split units provide heating and air conditioning, complemented by smart thermostats, a new gas heating system, separate hot water heater, and 200-amp electric service. Flexible bonus spaces offer the perfect home office and playroom/Den. Enjoy front and rear in-ground sprinklers, low taxes, and an unbeatable location just minutes from Islip Beach, the marina, parks, shopping, restaurants, and the Long Island Railroad. A wonderful opportunity to own a home that blends timeless charm with today's modern conveniences.

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Home facts

  • Year built:1929
  • Subdivision & Development:St. Marks
  • Listing ID #:1023939
  • Added:1 day(s) ago
  • Updated:August 06, 2026 at 05:45 PM

Rooms and interior

  • Bedrooms:2
  • Total bathrooms:1
  • Full bathrooms:1
  • Rooms Total:6
  • Dining Description:Formal Dining
  • Kitchen Description:Cooktop, Galley Type Kitchen, Oven, Range, Refrigerator
  • Basement:Yes
  • Basement Description:Full, Partially Finished
  • Living area:1,188 sq. ft.

Heating and cooling

  • Cooling:Ductless
  • Heating:Hot Water, Natural Gas, Steam

Structure and exterior

  • Year built:1929
  • Building area:1,188 sq. ft.
  • Lot area:0.15 Acres
  • Architectural Style:Cape Cod
  • Construction Materials:Frame
  • Levels:2 Story

Schools

  • High school:Islip High School
  • Middle school:Islip Middle School
  • Elementary school:Maud S Sherwood Elementary School

Utilities

  • Water:Public
  • Sewer:Public Sewer, Sewer Available

Finances and disclosures

  • Price:$599,995
  • Price per sq. ft.:$417.82
  • Tax amount:$10,711 (2025)

Features and amenities

  • Appliances:Cooktop, Dryer, Oven, Refrigerator, Washer
  • Laundry features:Dryer, Washer, Washer/Dryer Hookup
  • Amenities:Entrance Foyer

Parking

  • Parking description:Detached, Driveway, Garage, Off Street
  • Garage:Yes
  • Garage spaces:1
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