498 Dune Road, Westhampton Beach, NY 11978

498 Dune Road, Westhampton Beach, NY 11978

$8,450,000 · 5 bed · 6 bath · 3,357 sq ft · built 2026 · MLS# 1062142 · Active

Newly completed at 498 Dune Road, this five-bedroom bayfront residence is a collaboration between The Up Studio and First Dunes, pairing classic Hamptons coastal architecture with expansive views, thoughtful detailing, and construction designed for waterfront living. Set between Moriches Bay and the Atlantic Ocean, the property features direct bay frontage, a new dock to be built, and access to a private deeded ocean walkway shared with the neighboring property directly across Dune Road. A tri-gabled facade, stained cedar shingles, substantial exterior trim, and black standing-seam metal roof establish the home's…

Single-family homes in the Westhampton Beach Union Free School District sold for a median of $2,200,000 (typically $1,375,000–$3,000,000) across 100 recorded sales between Oct 7, 2025 and Sep 29, 2026, up 16.7% on the 12 months before. This home's $8,450,000 list price sits in the luxury single-family tier for the Westhampton Beach Union Free School District.

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 13, 2026 8:15 pm. 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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Westhampton Beach Market Trend

The median sale price in Westhampton Beach has eased about 9% — about $1.35M in July through September 2026, against $1.48M in July through September 2025. Over the past 2 years, the three-month median peaked near $3.02M around January 2026. Homes took longer to sell: about 127 days on market, against 100 a year earlier.

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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.