2453 D Union Boulevard #4A, Islip, NY 11751

2453 D Union Boulevard #4A, Islip, NY 11751

$235,000 · 2 bed · 1 bath · 750 sq ft · built 1968 · MLS# 1018874 · Active

Welcome to this spacious and well-maintained co-op offering comfortable, low-maintenance living in a beautifully landscaped community. This bright residence features a functional layout with generously sized rooms, abundant natural light, hardwood flooring, and ample closet space throughout. The kitchen offers plenty of cabinet and counter space, while the open living and dining areas provide the perfect setting for everyday living and entertaining. The community is professionally maintained and features manicured grounds, walking paths, and convenient amenities for residents to enjoy. Ideally located near shopping, restaurants, parks, public transportation, and major…

Co-ops in the Islip Union Free School District sold for a median of $275,000 (typically $230,000–$300,000) across 36 recorded sales between Oct 9, 2025 and Oct 1, 2026, up 3.8% on the 12 months before.

ZIP 11751 has about 3.7 months of co-op inventory — seller's market. Demand is outpacing supply, so homes sell quickly with firm pricing and limited room to negotiate.

OneKey MLS (recorded LI sales, trailing 12mo) + actual tax

Listings courtesy of OneKey® MLS as distributed by MLS GRID.

Based on information submitted to the MLS GRID as of October 10, 2026 9:45 pm. All data is obtained from various sources and may not have been verified by broker or MLS GRID. Supplied Open House Information is subject to change without notice. All information should be independently reviewed and verified for accuracy. Properties may or may not be listed by the office/agent presenting the information.

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Islip Market Trend

Islip's monthly median has swung between $370K and $800K over the past 2 years — volatility that usually reflects a thin or mixed market rather than one steady trend. Recently, homes have been selling in about 33 days.