Westchester's Priciest Home Just Listed at $16M — Here's What It Signals

A fully renovated, 13,481-square-foot estate on Premium Point in Mamaroneck, New York listed on October 3, 2026, for $15,995,000 — making it the highest-priced active residential listing in Westchester County. The property, co-listed by Zach and Heather Harrison of Compass, sits on 1.35 acres inside a 24-hour guard-gated peninsula community and offers views of both Long Island Sound and Premium Mill Pond from nearly every room.

What the Property Is and What It Just Sold for Renovation Costs

The eight-bedroom home was renovated earlier this year by Cum Laude Group, described by the listing agents as one of Westchester's premier luxury builders. While portions of the original stone structure were preserved, the renovation was essentially a ground-up rebuild: new slate roof, copper detailing, entirely new mechanical systems, and a full interior overhaul. The home now carries a builder warranty — a relatively rare offering at this price point and one worth noting as a comp benchmark.

Interior features include a chef's kitchen with marble countertops and two islands, custom white oak cabinetry, a butler's pantry, coffered ceilings in the dining room, a wine room, a third-floor recreation room, an elevator, and a sculptural staircase. The primary suite includes a marble fireplace, dual walk-in closets, and a marble bath with water views. A two-story pool house doubles as a guest suite, and the grounds include a heated outdoor pool, spa, and a covered waterfront terrace with an outdoor kitchen. There is also a heated and cooled three-car garage and a dedicated fitness level.

The listing agents describe it as one of the enclave's so-called "Big Four" properties — a designation based on elevation, scale, water frontage, and privacy within Premium Point.

What a $16M Comp Does to the Westchester Luxury Market

At just under $16 million, this listing sets a new public benchmark for the county. That matters for sellers across Westchester's upper price tiers — not just those selling nine-figure estates, but anyone in the $2M–$8M range where buyer expectations are shaped by what they see at the top of the market.

When a renovated, warranted, amenity-rich property enters at this price, it recalibrates what buyers think premium construction and waterfront access are worth. Sellers of older or partially updated homes in desirable Westchester submarkets — Larchmont, Rye, Scarsdale, Bedford — may find that buyers now have a sharper reference point for what "move-in ready" and "water views" actually command. That can cut both ways: it validates high prices for truly finished product, and it sharpens scrutiny of anything that falls short.

The listing agents identified three likely buyer profiles: Manhattan residents seeking a high-spec suburban primary home with easy city access; existing Westchester residents trading up to waterfront living; and affluent buyers with multiple residences who want a distinctive, well-located property. That third category — the peripatetic luxury buyer — is worth watching. When discretionary buyers compete across geographies, Westchester's proximity to Greenwich and Midtown Manhattan becomes a genuine differentiator, and a well-publicized listing like this one draws outside attention to the corridor.

What Sellers in Westchester Should Take From This Listing

If you are planning to sell in Westchester County in the next six to eighteen months, here is what this listing tells you about the current market.

Renovation quality is the new location premium. This property's value case rests heavily on the builder-grade renovation and the accompanying warranty. Buyers at every price point in this market are increasingly allergic to deferred maintenance and partial updates. If your home needs work, the calculus on pre-listing renovation is shifting: doing it right, with documented quality, is now a marketable asset — not just a nice-to-have.

Water and views command measurable premiums that are now publicly anchored. Sellers with any water feature, privacy attribute, or meaningful view should work with their agent to document and quantify that premium against updated comps. This listing makes those conversations easier and more defensible.

The gated-community and security angle is gaining traction. Premium Point's 24-hour guard gate is mentioned prominently in the listing narrative — and that is not an accident. Post-pandemic buyer preferences for privacy and controlled access have held. If your community or property has security features, they belong in your listing story.

Builder warranties at resale are a legitimate differentiator. If you renovated recently and your contractor offers a transferable warranty, document it. A small but growing segment of luxury buyers is treating warranty coverage the way commercial buyers treat inspections — as a condition of serious consideration.

Sellers wondering where their own property fits relative to a $16M comp can use Local Home Buyers USA's instant-offer tool to get a data-grounded baseline — useful context before any listing conversation.