187 The Helm, East Islip, NY 11730
$5,970,000 · 5 bed · 8 bath · 7,024 sq ft · built 2017 · MLS# 1071099 · Active
Discover exceptional waterfront living in the prestigious Moorings community of East Islip. This magnificent Victorian-style estate sits on approximately 1.5 acres of beautifully landscaped grounds, offering elegance, privacy, and breathtaking water views. Featuring 5 bedrooms, 6 full bathrooms, and 2 half bathrooms, this remarkable residence boasts a grand entrance foyer, soaring ceilings, formal dining room, gourmet eat-in kitchen, spacious living areas, home office, and luxurious primary suite. An elevator provides convenient access throughout the home. The outdoor setting is equally impressive, featuring an in-ground heated saltwater pool, spa, expansive patio,…
Single-family homes in the East Islip Union Free School District sold for a median of $735,000 (typically $645,000–$890,000) across 173 recorded sales between Nov 7, 2025 and Oct 29, 2026, up 8.1% on the 12 months before. This home's $5,970,000 list price sits in the luxury single-family tier for the East Islip Union Free School District.
ZIP 11730 has about 2.3 months of single family inventory — seller's market. Demand is outpacing supply, so homes sell quickly with firm pricing and limited room to negotiate.
At about $45,486 a year, this home's property tax runs roughly 279% above the $12,000 typical for East Islip Union Free School District. Suffolk bills combine town, school and special-district levies, so two homes at the same price in neighboring districts can carry materially different taxes. Exemptions such as STAR, Senior or Veteran move the number as well — a new owner's bill is often not the same as the seller's.
OneKey MLS (recorded LI sales, trailing 12mo) + actual tax

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Based on information submitted to the MLS GRID as of November 6, 2026 7:30 am. 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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Single-family price trend · East Islip Union Free School District
Single-family homes in the East Islip Union Free School District sold for a median of $735,000 across 173 recorded sales between Nov 7, 2025 and Oct 29, 2026, up 8.1% on the median of the 12 months before. This is a year-over-year comparison of recorded sales, not a forecast.
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Looking for off-market opportunities or a property attorney's read on this listing? Contact Joseph DeVito — Lic. R.E. Associate Broker + NY-licensed real estate attorney.
