200 Cleft Road, Mill Neck, NY 11765

$7,200,000 · 6 bed · 9 bath · 8,923 sq ft · built 1926 · MLS# 987913 · Active

Dam House is a magnificent 8.66-acre waterfront estate presiding over brilliant sunsets and water views of Beaver Lake. Completed in 1926, the masterfully designed six - bedroom Colonial residence has a refined elegance and timeless charm. It is complemented by expansive bluestone and red-brick patios, a four-bedroom cottage, a one-bedroom pool house, a sparkling swimming pool and a hard surface tennis court. Shade, specimen and flowering trees proliferate the captivating gardens. Manicured shrubs and flowering perennials add to the landscaped beauty. Additional amenities include an irrigation system, an outdoor fireplace,…

Single-family homes in the Locust Valley Central School District sold for a median of $1,230,000 (typically $815,000–$2,400,000) across 141 recorded sales between Oct 7, 2025 and Oct 1, 2026, down 12.2% on the 12 months before. This home's $7,200,000 list price sits in the luxury single-family tier for the Locust Valley Central School District.

At about $72,221 a year, this home's property tax runs roughly 325% above the $17,000 typical for Locust Valley Central School District. Nassau assessments run on a multi-year cycle, so the assessed value behind this bill can lag what the home actually sells for today. A sale does not automatically reset it, and 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