$4,999,999

15 Emmet Dr Head Of The Harbor, NY 11790

11 beds
5 full, 2 partial
9,411 sqft
4.1 acres
$531 / sqft
House

Property details

About 15 Emmet Dr

Step into a world of timeless elegance and unparalleled prestige at The Mallows — the crown jewel of the North Shore and one of the most exclusive waterfront estates in Head of the Harbor Village. Originally commissioned by the illustrious Astor family and masterfully designed by acclaimed architect Charles Platt, this historic masterpiece sprawls across 4+ acres of exquisitely landscaped grounds with over 300 feet of private beachfront on Stony Brook Harbor, offering commanding west-facing sunset views that stretch across the Long Island Sound to Connecticut. This is more than a residence — it’s a statement. A sanctuary where Gilded Age grandeur meets refined modern luxury. From the moment you arrive, you're greeted by an enchanting cobblestone driveway and sweeping limestone patio that set the stage for a resort-style lifestyle. Outdoor amenities rival the finest private clubs—a heated saltwater pool, hot tub, private tennis court, waterfront gazebo, and serene gardens including a vegetable garden and charming chicken coop, all thoughtfully curated for entertaining and tranquility alike. Inside, the estate unfolds with 11 bedrooms, 5.5 bathrooms, and 14 fireplaces, all artfully restored to preserve the home’s stately character while embracing contemporary sophistication. A 3-bedroom guest cottage offers additional space for hosting in luxury. Every inch of this estate speaks to craftsmanship and distinction: soaring 9.5-foot ceilings, rich custom millwork, an elegant library, and a breathtaking glass conservatory off the primary suite, framed by hurricane-rated Marvin windows and doors. A four-season glass room seamlessly extends from the family room, offering panoramic harbor views year-round. Entertain in grandeur with a professional-grade chef’s kitchen equipped with Viking appliances, Sub-Zero refrigeration, and a gas range—adjacent to a formal dining room designed for unforgettable gatherings. Additional luxuries include a three-level elevator, a sprawling wine cellar, and every detail one would expect in a world-class estate. Perfectly positioned just moments from Stony Brook Yacht Club, Avalon Nature Preserve, Stony Brook Village, and LIRR access, this remarkable estate also falls within the award-winning Three Village School District. The Mallows is more than a home — it’s a generational legacy, an iconic waterfront retreat, and a once-in-a-lifetime opportunity to own the most coveted estate on the North Shore.

Highlights

Home typeSingle Family Residence
HeatingOil, Forced Air
StatusActive
CoolingCentral Air
Size9,411 sqft
Lot size4.1 Acres
Year built1906
ParkingAttached, Driveway, Garage, Off Street, Private
MLS #835698
Garage3 spaces
WaterfrontBeach, Waterfront, Water Access
ViewWater
Private poolYes

Summary

  • MLS Number: 835698
  • MLS Name: ONEKEY2
  • Office Name: Frontline Realty Group LLC
  • Office Phone: (631) 938-1481

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

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. Properties displayed may be listed or sold by various participants in the MLS.

IDXThe data relating to real estate for sale on this web site comes in part from the Broker Reciprocity Program of the OneKey™ MLS. Real Estate listings held by brokerage firms other than this broker are marked with the Broker Reciprocity logo and detailed information about them includes the name of the listing brokers. This information is provided exclusively for consumers’ personal, non-commercial use, that it may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing.

The source of the displayed data is either the property owner or public record provided by non-governmental third parties. It is believed to be reliable but not guaranteed.

Information Copyright 2025, OneKey™ MLS. All Rights Reserved.
Data displayed may be a portion of, and not a complete set of all listings published in the MLS.

This advertisement does not suggest that the broker has a listing in this property or properties or that any property is currently available.
Last updated on: 3/15/2025, 10:11:49 AM Eastern. If you have any questions regarding the accuracy of this data, please contact us at help@rockethomes.com.

Get an agent. Get a mortgage. Save big.¹

drone / aerial view featuring a water view

$4,999,999

15 Emmet Dr

Sell your home with Rocket and save even more!

Seller rebate

0.5% sale price²

Price information

Property sales

We're sorry, we currently don't have property sales data for this listing.

Tax history

We're sorry, we currently don't have tax history data for this listing.

Nearby schools

6

William Sidney Mount Elementary School

Public District KG-6

1.7 mi

50 Dean Ln

7

Saint James Elementary School

Public Magnet KG-5

2.3 mi

580 Lake Ave

7

Nassakeag Elementary School

Public District KG-6

2.3 mi

490 Pond Path

School ratings are a score out of 10, where 10 is the highest and 1 is the lowest.

All data from GreatSchools

Neighborhood

The neighbors living near this home have an average income of $149,074. Most Head Of The Harbor, NY residents have annual incomes $200k+. The majority of families are married, no kids. Residents of this area typically have post secondary degree education.

How much money do the neighbors make?

14%
<35k
18%
35k-100k
33%
100k-200k
35%
200k+

What level of education do the neighbors have?

High School Diploma
Post Secondary Degree
Masters Degree
Doctorate

What types of families live nearby?

23%
Single, No Kids
2%
Single, with Kids
47%
Married, No Kids
28%
Married, with Kids

Are the neighbors home owners or renters?

Home Owners
Renters

How old are people in this area?

12%
<11 yrs old
10%
12-17 yrs old
11%
18-34 yrs old
43%
35-64 yrs old
24%
65+ yrs old

What do the neighbors do for fun?

  • Skiing/snowboardingSkiing/snowboarding
  • Men's TennisMen's Tennis
  • TennisTennis

Where do the neighbors shop?

  • NordstromNordstrom
  • BloomingdalesBloomingdales
  • Brooks BrothersBrooks Brothers

Where do the neighbors go to eat?

  • California Pizza KitchenCalifornia Pizza Kitchen
  • Bonefish GrillBonefish Grill
  • QdobaQdoba

What do the neighbors drive?

  • BMWBMW
  • LexusLexus
  • AcuraAcura

What do the neighbors listen to?

  • Talk/PersonalityTalk/Personality
  • NewsNews
  • SportsSports
All data provided by Home Junction and Claritas

Frequently asked questions

About 15 Emmet Dr

This home is located at 15 Emmet Dr in Head Of The Harbor, NY and zip code 11790 in the Town of Smithtown neighborhood. This 9,411 square foot home, which was built in 1906, sits on a 4.10 acre lot. Features: 11 bedrooms, 7 bathrooms. It has been listed on Rocket Homes since March 14, 2025 and is currently priced at $4,999,999.

From Rocket Homes Real Estate and based on county public records data.

More resources