9 Millfarm Lane, Water Mill, NY 11968

$5,495,000 · 4 bed · 6 bath · 4,384 sq ft · built 2015 · MLS# 1060873 · Active

Millfarm Lane on Reserve Perfectly positioned on Millfarm Lane, one of Water Mill's most desired and consistently appreciating locations, this classic Hamptons traditional home captures the absolute best of Hamptons living. Positioned on a pristine 0.73-acre lot, abutting a 20+ acre forever-protected agricultural reserve. The home's layout is perfectly aligned with a highly coveted southeastern backyard exposure, bathing the primary living spaces in brilliant natural light and guaranteeing maximum, unobstructed sun across the pool during peak summer months. Ready for immediate luxury living today and for generations to come, the…

Single-family homes in the Southampton Union Free School District sold for a median of $3,150,000 (typically $1,695,000–$5,140,000) across 95 recorded sales between Oct 9, 2025 and Sep 29, 2026, up 27.4% on the 12 months before. This home's $5,495,000 list price sits in the upper single-family tier for the Southampton Union Free School District.

ZIP 11968 has about 10.8 months of single family inventory — strong buyer's market. A heavily oversupplied market — buyers hold the upper hand, and sellers often offer price cuts or concessions to compete.

At about $9,944 a year, this home's property tax runs roughly 66% above the $6,000 typical for Southampton 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