597 Old Country Road, Deer Park, NY 11729
$749,000 · 4 bed · 3 bath · 2,249 sq ft · built 1964 · MLS# 1051185 · Active
Welcome to this beautifully renovated 4-bedroom, 2.5-bath home, thoughtfully updated with a fresh, modern feel and a versatile layout. The interior has been freshly painted and features brand-new luxury vinyl plank flooring, elegant crystal chandeliers, and a kitchen equipped with stainless steel appliances, including a brand-new stove with a built-in air fryer and a brand-new dishwasher. The main level offers a bedroom with its own private bathroom, providing excellent flexibility for guests, a home office, or convenient first-floor living. Upstairs, the spacious primary bedroom is highlighted by cathedral ceilings and…
Single-family homes in the Half Hollow Hills Central School District sold for a median of $1,335,000 (typically $925,000–$1,700,000) across 322 recorded sales between Oct 7, 2025 and Oct 2, 2026, up 18.7% on the 12 months before. This home's $749,000 list price sits in the entry single-family tier for the Half Hollow Hills Central School District.
ZIP 11729 has about 2.7 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 $15,017 a year, this home's property tax runs roughly 21% below the $19,000 typical for Half Hollow Hills 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 11, 2026 2:30 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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Deer Park Market Trend
The past 2 years in Deer Park has been defined by stability: median sale prices have ranged only from $625K to $723K, holding near $668K without a single direction winning out. Recently, homes have been selling in about 29 days.
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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.
