20 Beaumont Lane, Lake Grove, NY 11755

20 Beaumont Lane, Lake Grove, NY 11755

$700,000 · 4 bed · 3 bath · 2,376 sq ft · built 1971 · MLS# 1059431 · Active

Magnificent 4 bedroom 2 1/2 bath Colonial Features Front porch, Spacious Entry foyer, Living rm, Dining rm, Eat in Kitchen with gas Range and Stainless Steel appliances, Den with woodburning fireplace, Laundry area, Primary bedroom suite with full bathroom, 3 additional bedrooms and Full guest Bath. 2 Car attached garage, Oil heat. on a large property with mature landscaping.

Single-family homes in the Sachem Central School District sold for a median of $679,000 (typically $600,000–$750,000) across 523 recorded sales between Oct 7, 2025 and Oct 2, 2026, up 4.5% on the 12 months before. This home's $700,000 list price sits in the mid-market single-family tier for the Sachem Central School District.

ZIP 11755 has about 3.4 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 $14,561 a year, this home's property tax runs roughly 32% above the $11,000 typical for Sachem Central 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

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

Based on information submitted to the MLS GRID as of October 16, 2026 7:45 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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Lake Grove Market Trend

Comparing July through September 2026 with July through September 2025, the median sale price in Lake Grove has risen about 12%, from about $715K to $800K. Across the past 2 years, the monthly median has moved unevenly, anywhere from $568K to $960K. Homes also sold faster: about 27 days on market, against 28 a year earlier.