Iconic Gilded Age Manor on Long Island’s Gold Coast Returns to Market for Under $11 Million

Tucked behind a gated drive on more than 8 manicured acres in one of Long Island’s most prestigious enclaves, a 1916 manor estate has quietly returned to the market, now asking $10.75 million.

The historic residence at 393 Mill River Road, defined by its striking Old World architecture and grand proportions, has appeared on and off the market in recent years.

Its latest re-listing offers a renewed opportunity to own a rare piece of Gilded Age history that's been thoughtfully updated for modern living. The home is represented by Shawn Elliott of Nest Seekers International.

The roughly 13,000-square-foot estate is located in Muttontown, part of a coveted section of Long Island’s North Shore known as the Gold Coast—where wealthy industrialists such as J.P. Morgan and the Vanderbilts once held sprawling estates.

While the original owners of this property remain unknown, the sheer scale of the nine-bedroom residence, which also includes 12 bathrooms, speaks volumes about its early inhabitants.

Designed for both formal entertaining and everyday comfort, the floor plan makes it easy to imagine the grand gatherings once hosted within its walls. From the moment you step inside, original architectural details evoke a bygone era: intricate moldings, arched doorways, and hand-crafted millwork reflect early-20th-century craftsmanship, while modern infrastructure upgrades ensure seamless contemporary functionality.

One of the estate’s most striking spaces is the great room, where 16-foot ceilings and a dramatic stone fireplace create a sense of scale rarely found in 100-plus-year old homes. Designed to accommodate large gatherings, the room feels equally suited to elegant entertaining or quiet evenings by the fire. Nearby, a richly paneled library offers a more intimate retreat, complete with a wood-burning fireplace. 

The primary suite features its own sitting room, coffee bar, and a spa-style marble bath with radiant heated floors. Dual dressing rooms and generous proportions make it feel like a boutique hotel, while preserving the warmth and character of the original home.

And throughout the residence, historic charm is carefully balanced with modern convenience. Updated mechanical systems, elevator access, a fully equipped gym, and enhanced security features that include a panic room and walk-in vault reflect a comprehensive approach to modernization without compromising architectural integrity. Multiple garages provide space for at least five vehicles.

Outdoor amenities are equally compelling. The grounds feature a heated gunite pool, Har-Tru tennis court, putting green, and formal English gardens that unfold across the property’s lush, tree-lined acreage.

While this level of luxury isn’t for every buyer, the estate’s enduring appeal is unmistakable. With its blend of timeless architecture, thoughtful updates, and coveted acreage in a premier Long Island location, this 1916 manor stands as one of the region’s most significant residential offerings currently on the market.