5 Buckingham Court, Muttontown, NY 11791
$3,550,000 · 4 bed · 5 bath · 4,978 sq ft · built 2012 · MLS# 1016622 · Active
Experience refined luxury in the exclusive gated community of Stone Hill, where exceptional craftsmanship, resort-style amenities, and carefree living come together in one of Muttontown's most sought-after private enclaves. Set on over ¾ of an acre, this beautifully designed 5,000-square-foot residence offers 4 bedrooms+, 4.5 baths, and an impeccable blend of timeless elegance and modern comfort. A dramatic double-height foyer opens to a breathtaking great room with soaring ceilings, a wall of floor-to-ceiling windows, custom millwork, built-ins, and a striking double-sided stone gas fireplace. The chef's kitchen is beautifully appointed…
Single-family homes in the Syosset Central School District sold for a median of $1,315,000 (typically $1,050,000–$1,760,000) across 259 recorded sales between Oct 6, 2025 and Oct 2, 2026, up 7.7% on the 12 months before. This home's $3,550,000 list price sits in the luxury single-family tier for the Syosset Central School District.
ZIP 11791 has about 3.7 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 $53,017 a year, this home's property tax runs roughly 141% above the $22,000 typical for Syosset 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

Listings courtesy of OneKey® MLS as distributed by MLS GRID.
Based on information submitted to the MLS GRID as of October 11, 2026 4:30 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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Muttontown Market Trend
Muttontown has tightened over the past 2 years: the median sale price has advanced roughly 13% year over year to near $1.31M, and sales have generally been closing faster. That combination points to conditions favoring sellers — and if it continues, further firming is possible.
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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.
