129 Shinnecock Avenue, Mastic, NY 11950

129 Shinnecock Avenue, Mastic, NY 11950

$485,000 · 3 bed · 1 bath · 1,075 sq ft · built 1971 · MLS# 1053252 · Active

Welcome to this charming 3-bedroom ranch-style home offering comfortable one-level living and an inviting open floor plan. Featuring one full bathroom and beautiful oak hardwood floors throughout, The full basement provides excellent additional space for storage, recreation, a workshop, or future possibilities. The property sits on a generous 60 x 120' lot and is connected to the public sewer system. Enjoy a convenient location close to parks, beaches, shopping and only 1 mile to the train station, making commuting convenient. Outdoor recreation is also right nearby, with the Forge River…

Single-family homes in the William Floyd Union Free School District sold for a median of $510,000 (typically $430,000–$580,000) across 494 recorded sales between Oct 6, 2025 and Oct 2, 2026, up 5.2% on the 12 months before. This home's $485,000 list price sits in the mid-market single-family tier for the William Floyd Union Free School District.

ZIP 11950 has about 2 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 $8,111 a year, this home's property tax is in line with the roughly $8,000 typical for William Floyd 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

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

Based on information submitted to the MLS GRID as of October 11, 2026 3:30 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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Mastic Market Trend

Over the past 2 years, Mastic has strengthened — the median sale price has risen roughly 6% year over year to around $575K, and homes have generally been selling faster. That combination points to conditions favoring sellers — and if it continues, further firming is possible.