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3 South RunCold Spring Harbor, NY 11724

For Sale

$1,990,000

Smart Buyer Rebate $19,900

Welcome to Terre Haute
The property was originally part of a 74-acre tract held by the Hewlett family for more than two centuries. When the land was finally opened for development, the wife of the builder personally followed the bulldozer onto the property and selected this exceptional parcel—the first parcel to be sold from the historic Hewlett tract.

That instinctive choice remains evident today.

The custom-built residence was deliberately positioned to embrace the property’s extraordinary natural topography. Its principal living spaces—the Living Room, Dining Room, Kitchen, and Porch—face the dramatic northern slope, allowing the architecture to open naturally toward the land while creating a remarkable sense of space and seclusion.

The bedrooms are oriented toward the steep western boundary, where the natural grade provides an uncommon degree of privacy from neighboring properties. Rather than relying on walls or landscaping alone, the home is protected by the land itself—a remarkable gift bestowed by the glacier millions of years ago.

The expansive lawn stretches gracefully across the property, offering an exceptional setting for outdoor entertaining, recreation, or an informal game of touch football. Generous off-street parking further enhances the property’s convenience.
Perched atop a commanding 2.55-acre hilltop at the end of a quiet cul-de-sac, this exceptional 3,300-square-foot residence offers 4/5 bedrooms, 3 full baths, and extraordinary 360-degree privacy, creating a true estate setting on one of Cold Spring Harbor’s most desirable multi-acre properties.

Enjoy seasonal harbor views through the trees, with the opportunity to add a second story and capture year-round panoramic harbor vistas. Combining luxury, privacy, and remarkable potential, this is a rare offering at an exceptional value.

A gracious, tree-lined entrance drive welcomes you to the beautifully positioned home, where a sun-drenched living room features hardwood floors and oversized windows framing tranquil, park-like surroundings. The main level includes a spacious primary en-suite, a guest bedroom, and a versatile office or den that can easily be converted into a fifth bedroom. Recessed LED lighting throughout.

The generous eat-in kitchen opens to a covered porch, providing the perfect setting for effortless indoor-outdoor living and entertaining.

The ground garden level features two additional bedrooms, a luxurious marble bath, and an expansive recreation and entertainment room—ideal for hosting and entertaining.

Ideally located just five minutes from the Cold Spring Harbor LIRR station, with easy access to Jericho Turnpike and the Long Island Expressway, the property is also moments from Eagle Dock Beach (dues required), scenic state park hiking trails, and is situated within the Cold Spring Harbor Central School District.

A rare opportunity to own an exceptional private estate offering the perfect blend of natural beauty, convenience, and unlimited potential.

Incredible Scenic Vistas with Complete Seclusion a Nature's Lovers Paradise.

Listed by Kenneth M. Coleman

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Signature Premier Properties

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631-692-4800

Last updated September 12, 2026

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Source: OneKey #1026452

Listing Facts

  • TypeSingle-family
  • NeighborhoodCold Spring Harbor
  • Bedrooms5
  • Bathrooms3
  • Days on Prevu60
  • Taxes$24,252/year
  • Size3,300 sqft
  • Price per sqft$603

Amenities

  • Dishwasher
  • Private Outdoor Space
  • Washer/Dryer
  • Air Conditioning
  • Parking

Location

Mortgage Calculator

Listing History

07/17/2026
Listed by Signature Premier Properties
$1,990,000
  1. 07/17/2026$1,990,000
    Listed by Signature Premier Properties

Property Details for 3 South Run

Exterior

Construction

  • Property Attached: Yes
  • Property Condition: Updated/Remodeled
  • Year Built: 1956
  • Architectural Style: Ranch
  • Construction Materials: Frame
  • Exterior Features: Garden, Lighting

Features

  • Patio And Porch Features: Deck, Patio, Porch
  • View: Open, Trees/Woods

Measurements

  • Building Area Units: Square Feet
  • Lot Features: Cul-De-Sac
  • Lot Size Acres: 2.55
  • Lot Size Square Feet: 108,528

Financial

Taxes

  • Parcel Number: 0400-131-00-01-00-028-000, 0400-131-00-01-00-029-0
  • Tax Annual Amount: $24,252.00
  • Tax Year: 2026

Interior

Features

  • Appliances: Dishwasher, Dryer, Electric Cooktop, Electric Oven, Refrigerator, Washer
  • Fireplace Features: Family Room, Living Room, Masonry, Wood Burning
  • Fireplace: Yes
  • Fireplaces Total: 2
  • Flooring: Hardwood, Wood
  • Interior Features: First Floor Bedroom, First Floor Full Bath, Entrance Foyer, Walk-In Closet(s)

Measurements

  • Living Area: 3,300
  • Living Area Source: Plans

Rooms

  • Basement: Finished, Full, Walk-Out Access
  • Has Basement: Yes
  • Bathrooms Full: 3
  • Bathrooms Total Integer: 3
  • Bedrooms Total: 5
  • Rooms Total: 10

Other

Location

  • Tax Block: 1
  • Tax Lot: 28, 29

Parking

Parking

  • Garage Spaces: 2
  • Garage: Yes
  • Parking Features: Driveway, Oversized, Private
  • Parking Total: 15

Schools

Elementary School

  • Elementary School: West Side School
  • Elementary School District: Cold Spring Harbor

High School

  • High School: Cold Spring Harbor High School
  • High School District: Cold Spring Harbor

Middle or Junior School

  • Middle Or Junior School: Cold Spring Harbor High School
  • Middle Or Junior School District: Cold Spring Harbor

Utilities

Equipment

  • Cooling: Central Air
  • Heating: Baseboard, Oil
  • Laundry Features: Laundry Room
  • Sewer: Cesspool
  • Utilities: Electricity Connected, Trash Collection Public, Water Connected
  • Water Source: Public

Frequently Asked Questions

How many bedrooms and bathrooms does this single-family home have?

There are 5 bedrooms and 3 bathrooms in this single-family home at 3 South Run.

What schools are nearby to 3 South Run?

Nearby schools include the West Side School Elementary School, Cold Spring Harbor High School Middle School, and Cold Spring Harbor High School.

Does this single-family home have parking?

Yes, there are 2 parking spaces available for 3 South Run.

What are the annual taxes for 3 South Run?

Annual taxes for this single-family home are estimated at $24,252.

How does 3 South Run compare to other single-family homes in Cold Spring Harbor?

This single-family home is listed 5% above the average price for single-family homes in Cold Spring Harbor and has been on the market for 16 more days than the typical home in this area.

What is the square footage on this single-family home?

According to the MLS, this listing is 3,300 sqft.

3 South Run is a 5-bedroom, 3-bath single-family home for sale in Cold Spring Harbor NY 11724. Available on Prevu for 60 days at $1,990,000. This home features 3,300 square feet of living space, located in Cold Spring Harbor. The median listing price for single-family homes in this area is $1,199,000. Nearby schools include West Side School Elementary School, Cold Spring Harbor High School Middle School, and Cold Spring Harbor High School. The home offers private outdoor space, dishwasher, air conditioning, parking, and washer/dryer. Browse more single-family home listings in Suffolk County.

The data relating to real estate for sale on this website comes in part from the IDX Program of OneKey™ MLS. 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. This information is provided exclusively for consumers’ personal, non-commercial use. Information Copyright 2026, OneKey™ MLS. All Rights Reserved.

Full MLS Disclaimers

Rebate estimate is indicative only and based on listing price and estimated buyer's agent commission paid by owner, if applicable. Final rebates are subject to Terms of Use and may vary due to final negotiated transaction terms.