20 Siefert Avenue, Miller Place, NY 11764

20 Siefert Avenue, Miller Place, NY 11764

$1,159,500 · 4 bed · 3 bath · 2,595 sq ft · built 2026 · MLS# 1029609 · Active

RARE OPPORTUNITY! Custom New Modern Farmhouse Construction TO BE BUILT– North of Old Country Road On Quiet Dead End Street Located in the Miller Place Park Homeowners Association with Private Beach Rights. Take Gully Landing Rd. to Sea Cliff Ave. park and walk down to the beach. Construction to begin fall of 2026 Open floor plan, two story foyer This brand-new 2,595 square foot Modern Farmhouse, thoughtfully designed with a classic curb appeal and a highly functional modern layout. Featuring 4 bedrooms, 2.5 bathrooms, a full 8’ basement with outside…

Single-family homes in the Miller Place Union Free School District sold for a median of $660,000 (typically $565,000–$795,000) across 190 recorded sales between Oct 10, 2025 and Oct 2, 2026, up 3.1% on the 12 months before. This home's $1,159,500 list price sits in the luxury single-family tier for the Miller Place Union Free School District.

ZIP 11764 has about 2.2 months of single family inventory — seller's market. Demand is outpacing supply, so homes sell quickly with firm pricing and limited room to negotiate.

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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Miller Place Market Trend

Miller Place has eased over the past 2 years — the median sale price is down about 7% year over year to roughly $700K, and time on market has lengthened. Should the pattern hold, the market may continue drifting toward balance.

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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.