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MLS ID KEY958234Last updated Oct 18, 2026

Single Family

660 Chicken Valley Road

Active · Oyster Bay · Nassau County, NY 11560

Bedrooms
6 Beds
Bathrooms
12 Baths
Year built
2004
Est. monthly taxes
$7,216
Property gallery0 / 48
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About this home

660 Chicken Valley Road | Locust Valley, Long Island Gold Coast Positioned within the most coveted enclave of Locust Valley on Long Island’s historic Gold Coast, 660 Chicken Valley Road is not merely a residence—it is a private estate of enduring significance, designed for a highly discerning buyer who values legacy, discretion, and uncompromising quality. Set across approximately 5.33 acres of secluded, manicured grounds and encompassing nearly 16,500 square feet of interior living space, the estate embodies a rare combination of architectural integrity, refined craftsmanship, and long-term asset strength—an offering seldom available in today’s market. Architectural Integrity & Engineering Excellence The residence far exceeds conventional residential standards, delivering exceptional structural durability and long-term stability. Every element—from roofing systems to drainage engineering, from acoustic insulation to thermal efficiency—has been executed to a near commercial-grade level, ensuring the property performs as beautifully as it presents over time. A fully integrated geothermal heating system, paired with advanced climate and humidity control, provides year-round comfort while preserving fine art, furnishings, and materials at an optimal level. Smart home integration allows full remote operation globally, supported by central vacuum, multi-zone climate control, and a whole-house generator—ensuring seamless living without compromise. Security and privacy are paramount, with dual gated access, an extended private drive, and discreet contingency features that elevate the estate to a level of true residential security. Interiors | Bespoke Craft, Quiet Luxury The interior experience is defined not by excess, but by precision. From hand-finished hardwood floors to finely executed crown moldings, each detail reflects a commitment to craftsmanship that is increasingly rare. The kitchen and service areas are appointed with best-in-class appliances—including Wolf, Sub-Zero, and Miele—integrated with custom millwork and carefully selected stone surfaces. These spaces function equally as a private culinary environment and a sophisticated setting for entertaining. The primary suite is conceived as a private retreat, featuring a fireplace, a fully appointed dressing room, and a spa-caliber bathroom with radiant heated floors, a freestanding soaking tub, and a multi-function shower system—delivering a daily experience of understated indulgence. Technology is seamlessly embedded throughout the home, integrating lighting, climate, and security into a unified system that supports effortless, modern living while preserving warmth and timeless character. Grounds | A Private Landscape of Distinction The estate grounds offer a level of scale and privacy rarely achieved. A defining feature is the approximately 2,000-foot cherry blossom-lined drive, creating a seasonal spectacle that transforms the approach into an experience of quiet grandeur—both cinematic and deeply personal. The landscape unfolds with expansive lawns, mature trees, and curated outdoor environments designed for both solitude and large-scale entertaining. Recreational amenities further enhance the lifestyle offering, positioning the estate as a true private resort. Location & Investment Perspective Locust Valley remains one of the most tightly held and supply-constrained markets on the Gold Coast. Properties of this caliber—combining land scale, construction quality, and privacy—are increasingly rare. This offering represents not only a primary or secondary residence, but a strategic long-term asset with strong preservation of value and generational appeal. 660 Chicken Valley Road is not defined by square footage alone, but by what it represents. It is a residence for those who understand that true luxury is not declared—it is recognized. Here, ownership is not simply acquired. It is inherited forward.

Listing snapshot

Days on site
59 days
Listed on MLS
Feb 3, 2026
Full baths
9
Half baths
3
Annual property tax (MLS)
$86,592
Tax year
2024
Area source (MLS)
Other
Listing brokerage
Daniel Gale Sothebys Intl Rlty
MLS ID
KEY958234
Last updated
Oct 18, 2026

General features

Property type
Single Family
Property subtype
Single Family Residence
Year built
2004
Garage
Yes
Garage spaces
4
Total parking
4
Parking
Garage
Water source
Well
Sewer
Other
Utilities
Cable Available

Interior features

Basement
See Remarks
Heating
Forced Air, Natural Gas, Radiant
Cooling
Central Air
Interior
First Floor Bedroom, Cathedral Ceiling(s), Eat-in Kitchen, Entrance Foyer, Formal Dining, Granite Counters, Marble Counters, Pantry, Primary Bathroom, Walk-In Closet(s), Wet Bar
Appliances
Other

Exterior features

Architectural style
Estate
Construction materials
Blown-In Insulation, Brick
Private pool
Yes

Schools (MLS)

Elementary school
Bayville Elementary School
Elementary school district
Locust Valley
Middle school
Locust Valley Middle School
Middle school district
Locust Valley
High school
Locust Valley High School
High school district
Locust Valley

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

Recent activity

  1. Listing updated from MLS
  2. First seen on this site
  3. MLS status changed

Location

Oyster Bay · Nassau County, NY 11560Show interactive map
660 Chicken Valley Road

Oyster Bay · Nassau County, NY 11560

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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

Estimated monthly total of entered costs—

Excludes insurance, mortgage insurance, special assessments and lender fees. MLS taxes may reflect abatements or exemptions and can change.

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