Skip main navigation
Off market
  • Tax assessed value
    $6,882,000

    23 Old Westbury Rd, Old Westbury, NY 11568

    20beds
    --sqft
    Other
    Built in ----
    15.89 Acres Lot
    $-- Zestimate®
    $--/sqft
    $4,362 Estimated rent

    Home value

    Not available

    Estimated sales range

    Not available

    $4,362/mo

    Zestimate® history
    Loading
    Loading...

    Owner options

    List your home for rent

    $4,362/mo

    Rent Zestimate®

    Find your next renter with Zillow Rental Manager. Plus, with online applications, you can quickly screen prospective tenants – for free.

    Learn more

    $4,362/mo

    Rent Zestimate®

    Refinance and save

    $46,197/mo

    Est. payment

    Refinancing to a lower rate could help reduce your monthly payments and save thousands over the life of the loan.

    See today's rates

    $46,197/mo

    Est. payment

    Explore your selling options

    Work with a Zillow partner agent

    Leverage their expertise and Zillow's premium Showcase listings to get your home seen by more buyers.

    Get started

    List with your own agent

    Get your home in front of millions of buyers by listing it on Zillow.

    Learn how to do it

    Sell it yourself

    Take full control of how buyers see your home on Zillow by listing For Sale by Owner (FSBO).

    List your home

    What's special

    Two large barnsFull outdoor kitchenU-shaped horse stable

    Welcome to 23 Old Westbury Road, an extraordinary private compound set on approximately 16 acres of fully landscaped grounds in one of Long Island's most prestigious enclaves. At its heart stands a ~10,000 sq. ft. Mediterranean-style brick mansion of commanding presence, complemented by seven additional legal residences, 14 garages, two large barns, and a U-shaped horse stable. The estate offers resort-level amenities, including an Olympic-sized heated in-ground pool of nearly 90,000 gallons with jacuzzi, a full outdoor kitchen, and manicured gardens designed for grand entertaining and tranquil living alike. Zoned for two acres with non-conforming use, the property presents a rare opportunity to subdivide or reimagine, unlocking tremendous value for a buyer seeking not only a remarkable lifestyle but also a sound investment. Whether envisioned as a multi-generational compound, equestrian estate, income-producing asset, or backdrop for film and media productions, this property offers versatility at a scale seldom seen. Perfectly situated just 30 minutes from New York City and minutes from public transportation, 23 Old Westbury Road delivers privacy, prestige, and long-term potential—an unparalleled acquisition for both use and investment.

    This property is off market, which means it's not currently listed for sale or rent on Zillow. This may be different from what's available on other websites or public sources.

    Zillow last checked:

    Source: Nest Seekers International,MLS#: 4964763

    Facts & features

    Interior

    Bedrooms & bathrooms
    • Bedrooms: 20
    • Bathrooms: 30
    • Full bathrooms: 30
    Cooling
    • Central Air
    Appliances
    • Included: Dishwasher
    Features
    • Walk-In Closet(s)
    • Basement: combined apartment,Yes
    • Has fireplace: Yes

    Property

    Parking
    • Parking features: Garage
    • Has garage: Yes
    Features
    • Patio & porch: Patio
    • Exterior features: Barbecue
    • Has private pool: Yes
    Lot
    • Size: 15.89 Acres
    Details
    • Parcel number: 1000C001354

    Construction

    Type & style
    • Home type: SingleFamily
    • Property subtype: Other

    Community & HOA

    Community
    • Subdivision: Old Westbury
    Location
    • Region: Old Westbury

    Financial & listing details

    • Tax assessed value: $6,882,000
    • Date on market: 9/24/2025
    • Lease term: Contact For Details

    Price history

    DateEventPrice
    5/28/2026Price change$11,750,000-21.4%
    Source: OneKey® MLS as distributed by MLS GRID #914193 Report a problem
    3/28/2026Listing removed$2,500
    Source: Zillow Rentals Report a problem
    3/15/2026Listed for rent$2,500-16.7%
    Source: Zillow Rentals Report a problem
    9/23/2025Price change$14,950,000+7.6%
    Source: OneKey® MLS as distributed by MLS GRID #914193 Report a problem
    4/13/2025Price change$13,900,000+26.4%
    Source: OneKey® MLS as distributed by MLS GRID #L3432703 Report a problem
    7/31/2023Listed for sale$11,000,000-7.5%
    Source: OneKey® MLS as distributed by MLS GRID #3432703 Report a problem
    6/21/2023Listing removed--
    Source: OneKey® MLS as distributed by MLS GRID #3432703 Report a problem
    9/24/2022Listed for sale$11,888,000-14.5%
    Source: OneKey® MLS as distributed by MLS GRID #3432703 Report a problem
    1/12/2022Listing removed--
    Source: OneKey® MLS as distributed by MLS GRID #3309946 Report a problem
    5/19/2021Listed for sale$13,900,000
    Source: OneKey® MLS as distributed by MLS GRID #3309946 Report a problem
    11/10/2020Listing removed$13,900,000
    Source: Donna Demkowicz R E Corp #3162513 Report a problem
    11/9/2020Listed for sale$13,900,000
    Source: Donna Demkowicz R E Corp #3162513 Report a problem
    7/10/2020Listing removed$13,900,000
    Source: Donna Demkowicz R E Corp #3162513 Report a problem
    6/12/2020Listed for sale$13,900,000
    Source: Donna Demkowicz R E Corp #3162513 Report a problem
    4/18/2020Listing removed$3,000
    Source: Donna Demkowicz R E Corp #3207193 Report a problem
    4/15/2020Listing removed$13,900,000
    Source: Donna Demkowicz R E Corp #3162513 Report a problem
    3/25/2020Listed for rent$3,000+42.9%
    Source: Donna Demkowicz R E Corp #3207193 Report a problem
    1/6/2020Listed for sale$13,900,000
    Source: Donna Demkowicz R E Corp #3162513 Report a problem
    8/5/2017Listing removed$2,100
    Source: Donna Demkowicz, REALTOR #2959197 Report a problem
    7/29/2017Listed for rent$2,100-25%
    Source: Donna Demkowicz, REALTOR #2959197 Report a problem
    3/16/2017Listing removed$2,800
    Source: Douglas Elliman #2912000 Report a problem
    2/7/2017Listed for rent$2,800+12%
    Source: Douglas Elliman Real Estate #2912000 Report a problem
    11/29/2016Listing removed$2,500+25%
    Source: Douglas Elliman Real Estate #2894149 Report a problem
    5/15/2015Listing removed$2,000
    Source: Donna Demkowicz, REALTOR #2729609 Report a problem

    Public tax history

    YearProperty taxesTax assessment
    2024-- $6,882
    2023-- $6,882
    2022-- $6,882
    2021$129,333 +18.4%--
    2020$109,267 -20.2%$7,007
    2019$136,843 $7,007 -25%
    2018$136,843 -1.9%$9,342
    2017$139,461 +0.6%$9,342 -3%
    2016$138,677 +927.5%$9,629 -5%
    2015$13,496 -10.1%$10,136 -11.7%
    2013$15,005 -87.8%$11,474 -12%
    2011$123,213 +16.5%$13,039
    2010$105,756 $13,039 +0.8%
    2009-- $12,940 -46.6%
    2005-- $24,235 -38.3%
    2003-- $39,297 -51.6%
    2002-- $81,120
    2001-- $81,120
    2000-- $81,120
    Find assessor info on the county website

    Neighborhood: 11568

    Nearby schools

    GreatSchools rating