SoldOct 13, 2026

Listed by Steven Rainone and Maryann Rainone from Netter Real Estate Inc

, 

Bought with Maria Zaffarese

Source: OneKey #1023939

21 Bay 3rd Street, Islip, NY, 11751

$612,500

2
1
1
1436 sq. ft.
6098 sq. ft.

SingleFam

•

28 days on the market

Sold: Oct 13, 2026

What's around 21 Bay 3rd Street

About this property

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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