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MLS ID KEY1021590Last updated Sep 16, 2026

Single Family

3 Valentine Farm Court

Active · Oyster Bay · Nassau County, NY 11545

Bedrooms
7 Beds
Bathrooms
9 Baths
Year built
2003
Est. monthly taxes
$12,098.75
Property gallery0 / 48
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About this home

Old Brookville | Welcome to 3 Valentine Farm Court, where timeless architecture, exceptional craftsmanship, and an unmatched collection of luxury amenities define one of the North Shore's most impressive private estates. Positioned behind double iron gates at the end of a secluded cul-de-sac, this stately brick center hall colonial is situated on more than three meticulously landscaped acres, combining remarkable privacy with an extraordinary level of recreation and entertaining amenities. The residence is introduced by a spectacular two-story domed foyer showcasing a sparkling chandelier, intricate hand-painted ceiling details, and extensive custom millwork carried throughout every level of the home. Formal and informal living spaces are thoughtfully arranged, including an expansive formal living room, richly appointed mahogany library, inviting family room with one of three wood-burning fireplaces, formal dining room, powder room, and a spacious first-floor en-suite bedroom with separate exterior access. The custom kitchen is appointed with premium gas appliances, custom cabinetry, a center island with seating, an adjoining breakfast area, and an expansive butler's pantry connecting directly to the formal dining room. Extending from the main level, an elevated terrace with a built-in outdoor kitchen overlooks the estate grounds and pool complex below. The second level features five bedroom suites, each with their own full bathroom. Occupying its own wing of the home, the primary suite includes a private balcony overlooking the property, separate sitting room, two oversized walk-in closets, and an expansive en-suite bathroom with dual vanities and a jetted soaking tub. Designed as an exceptional recreational and entertaining space, the lower level features a custom wet bar, expansive gathering areas, a fully equipped fitness center, additional bedroom and full bathroom, oversized laundry room, and a below-grade indoor sports court with min. 15-foot ceilings—a rarely available amenity in residential construction. The outdoor amenities are equally impressive. The resort-inspired grounds are centered around an oversized gunite swimming pool with an integrated spa and water features, surrounded by expansive patios and mature landscaping. A fully equipped pool house includes a full bathroom, laundry facilities, and an indoor kitchen with a built-in grill opening directly onto the pool terrace. Completing the estate is a full-size sports court configured for both tennis and basketball, along with an oversized three-car garage equipped with vehicle lifts offering additional space for the car enthusiast. Representing an exceptional combination of scale, craftsmanship, and amenities on more than three private acres, 3 Valentine Farm Court presents a rare opportunity within one of the North Shore's most distinguished settings.

Listing snapshot

Days on site
59 days
Listed on MLS
Jul 29, 2026
Full baths
8
Half baths
1
Annual property tax (MLS)
$145,185
Tax year
2026
Area source (MLS)
Public Records
Listing brokerage
Douglas Elliman Real Estate
MLS ID
KEY1021590
Last updated
Sep 16, 2026

General features

Property type
Single Family
Property subtype
Single Family Residence
Year built
2003
Garage
Yes
Garage spaces
3
Parking
Driveway, Garage, Garage Door Opener, Off Street, Private
Water source
Public
Sewer
Cesspool
Utilities
Electricity Connected, Natural Gas Connected, Underground Utilities, Water Connected

Interior features

Basement
Finished, Full, Walk-Out Access
Heating
Natural Gas
Cooling
Central Air
Interior
First Floor Bedroom, First Floor Full Bath, Built-in Features, Central Vacuum, Chandelier, Crown Molding, Double Vanity, Eat-in Kitchen, Elevator, Entrance Foyer, Formal Dining, High Ceilings, Kitchen Island, Marble Counters, Open Kitchen, Original Details, Pantry, Primary Bathroom, Recessed Lighting, Speakers, Walk-In Closet(s), Washer/Dryer Hookup, Wet Bar
Appliances
Dishwasher, Dryer, Freezer, Gas Oven, Gas Range, Microwave, Refrigerator, Stainless Steel Appliance(s), Washer, Wine Refrigerator
Flooring
Hardwood, Tile
Fireplace
Yes
Fireplaces
3

Exterior features

Architectural style
Colonial
Construction materials
Brick
Exterior
Basketball Court, Tennis Court(s)
Private pool
Yes

Schools (MLS)

Elementary school
Glen Head Elementary School
Elementary school district
North Shore
Middle school
North Shore Middle School
Middle school district
North Shore
High school
North Shore Senior High School
High school district
North Shore

School information is provided by the MLS. Confirm attendance eligibility with the school district.

Recent activity

  1. Listing updated from MLS
  2. Price changed to $5,999,999
  3. First seen on this site
  4. MLS status changed

Location

Oyster Bay · Nassau County, NY 11545Show interactive map
3 Valentine Farm Court

Oyster Bay · Nassau County, NY 11545

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Estimate monthly payment

Loan detailsFixed-rate, fully amortizing loan. Edit the assumptions below; no market rate is supplied.
Property expenses (USD)
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Estimated monthly principal & interest—

Monthly property taxNot provided

Monthly association / maintenance feesNot provided

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Listing data is supplied by the MLS and may change without notice.