Skip main navigation
For sale
  • $1,995,000

    310 Mt Holly Road, Katonah, NY 10536

    7beds
    3,300sqft
    Single Family Residence, Residential
    Built in 1850
    4 Acres Lot
    $-- Zestimate®
    $605/sqft
    $-- HOA

    What's special

    Historic stone wallsClassic white horse fencing
    Bellwether Farm - A Rare Compound Opportunity in the Heart of Bedford Horse Country. Bellwether Farm presents a singular opportunity to create a fully bespoke country estate on Mt. Holly Road, one of Northern Westchester’s most coveted addresses in the heart of Bedford-Katonah horse country. Approached along an idyllic country road, the property arrives like a page out of time: four pastoral acres of open meadow framed by classic white horse fencing, structures that trace their roots to the early 19th century, and the unhurried feeling of a European farmstead. Together they form the foundation for a multi-building compound just an hour from NYC, within the Katonah-Lewisboro School District. The property comprises approx. 3,300 sq ft across three existing structures - the Barn, Carriage House, and Milk House - alongside a gutted Main House ready to be replaced with a custom primary residence. This grandfathered multi-structure configuration, no longer possible under current zoning, offers rare flexibility for living, hosting, and creative work across a thoughtfully composed compound. Plans for a modern farmhouse of approx. 3,600 sq ft are available as a point of departure, and a seven-bedroom septic is already approved. The property's architect and builder are on hand, or a buyer may engage their own design and team. The Barn, featuring historic details like wavy glass diamond-paned windows and classic barn doors, includes a fully renovated legal two-bedroom apartment above - with updated kitchen and full bath - and an unfinished studio below with half bath and laundry, suited as a wellness space, creative studio, or lounge. New electrical, Bosch HVAC, mini-splits, and whole-house generator are in place. A 26-foot glass wall, designed to maximize light and meadow views, is fabricated and ready for installation. Reimagined from the foundation up, the Carriage House blends historic craftsmanship with contemporary architecture - original hand-hewn beams, antique brick floors, and wavy glass windows alongside new large-scale commercial glass, cedar shake siding, a standing seam metal roof, and updated electrical and HVAC - ready to be finished as a home office, creative studio, or guest cottage. Completion plans for both are approved by the Town of Bedford. The charming Milk House, compact and rich in character, features antique brick floors and original wavy glass windows beneath a new standing seam metal roof - ideal as a writer's studio or garden retreat. Once a thriving working farm, the land remains essentially untouched - open pasture, long meadow views, and historic stone walls that speak to generations of quiet, unhurried life. A gravel motor court lends an arrival that feels entirely of the place. Bellwether Farm is a rare chance to build something entirely your own - a country estate with room for guests, and creative pursuits, each in its own dedicated setting, in one of the Hudson Valley's most beautiful and sought-after enclaves. Construction drawings and approved completion plans available upon request.
    8 days
    |
    3,506
    |
    150
    |

    Zillow last checked: 7 hours ago

    Listing updated: March 27, 2026 at 01:39pm

    Listing by:

    Serhant LLC 646-480-7665,

    Samuel Berek 917-239-7018,

    Jake Garay 914-772-2603,

    Serhant LLC

    Source: OneKey® MLS as distributed by MLS GRID,MLS#: 947648MLS Logo

    Tour with a local agent

      Facts & features

      Interior

      Bedrooms & bathrooms
      • Bedrooms: 7
      • Bathrooms: 6
      • Full bathrooms: 4
      • 1/2 bathrooms: 2
      Heating
      • Baseboard, Electric
      Cooling
      • Ductless, Electric
      Appliances
      • Included: Dishwasher, Dryer, Freezer, Gas Oven, Gas Range, Microwave, Refrigerator, Stainless Steel Appliance(s), Washer, Gas Water Heater
      • Laundry: Washer/Dryer Hookup
      Features
      • Built-in Features, Eat-in Kitchen, Entrance Foyer, Natural Woodwork, Open Floorplan, Open Kitchen, Pantry, Primary Bathroom, Recessed Lighting, Smart Thermostat, Storage
      • Attic: Full
      Interior area
      • Total structure area: 3,300
      • Total interior livable area: 3,300 sqft

      Property

      Parking
      • Total spaces: 7
      • Parking features: Covered, Driveway, Garage
      • Garage spaces: 4
      • Carport spaces: 3
      • Has uncovered spaces: Yes
      Lot
      • Size: 4 Acres
      Details
      • Parcel number: 2000039020000010000009
      • Special conditions: None

      Construction

      Type & style
      • Home type: SingleFamily
      • Architectural style: Carriage House,Modern
      • Property subtype: Single Family Residence, Residential
      Materials
      • Shingle Siding
      Condition
      • Actual
      • Year built: 1850
      • Major remodel year: 2024

      Utilities & green energy

      • Sewer: Septic Tank
      • Utilities for property: Propane

      Community & HOA

      HOA
      • Has HOA: No
      Location
      • Region: Katonah

      Financial & listing details

      • Price per square foot: $605/sqft
      • Tax assessed value: $89,320
      • Annual tax amount: $24,688
      • Date on market: 3/26/2026
      • Cumulative days on market: 8 days
      • Listing agreement: Exclusive Right To Sell

        Estimated market value

        Not available

        Estimated sales range

        Not available

        Not available

        Price history

        Price history
        DateEventPrice
        3/26/2026Listed for sale$1,995,000$605/sqft
        Source: OneKey® MLS as distributed by MLS GRID #947648 Report a problem
        12/6/2025Listing removed$1,995,000$605/sqft
        Source: OneKey® MLS as distributed by MLS GRID #919406 Report a problem
        6/19/2025Listed for sale$1,995,000+47.8%$605/sqft
        Source: OneKey® MLS as distributed by MLS GRID #878608 Report a problem
        11/30/2023Sold$1,350,000$409/sqft
        Source: Public Record Report a problem
        7/15/2018Listing removed$1,950$1/sqft
        Source: William Raveis Real Estate #4825466 Report a problem
        6/26/2018Price change$1,950-2.5%$1/sqft
        Source: William Raveis Real Estate #4825466 Report a problem
        6/4/2018Listed for rent$2,000+2.6%$1/sqft
        Source: William Raveis Real Estate #4825466 Report a problem
        3/20/2018Listing removed$1,950$1/sqft
        Source: William Raveis Real Estate #4808319 Report a problem
        3/1/2018Listed for rent$1,950+11.4%$1/sqft
        Source: William Raveis Real Estate #4808319 Report a problem
        10/18/2013Listing removed$1,750$1/sqft
        Source: Ginnel Real Estate #3330497 Report a problem
        10/5/2013Listed for rent$1,750$1/sqft
        Source: Ginnel Real Estate #3330497 Report a problem

        Public tax history

        Public tax history
        YearProperty taxesTax assessment
        2024-- $89,320 +32.8%
        2023-- $67,265 +10.5%
        2022-- $60,895
        2021-- $60,895
        2020-- $60,895 0%
        2019-- $60,900
        2018-- $60,900
        2017-- $60,900
        2016-- $60,900
        2015-- $60,900
        2014-- $60,900
        2013-- $60,900
        2012-- $60,900
        2011-- $60,900
        2010-- $60,900
        2009-- $60,900
        2008-- $60,900
        2007-- $60,900
        2006-- $60,900
        2005-- $60,900
        2004-- $60,900
        2003-- $60,900
        2002-- $60,900
        2001-- $60,900
        2000-- $60,900
        1999-- $60,900

        Find assessor info on the county website

        Monthly payment

        Estimated monthly payment
        All calculations are estimates and provided by Zillow, Inc. for informational purposes only. Actual amounts may vary.
        HOA fees may include property taxes on listings classified as Co-Ops. Contact the listing agent and/or owner for fee details.
        Mortgage interest rates are dependent on a number of factors, including credit score, down payment, and repayment length. Interest rate data provided by Zillow Group Marketplace, Inc. as of 1/1/1970 from various mortgage lenders with which we have lead or other similar arrangements; the Estimated Payment is an average of those rates.
        See how much you could borrow to make a competitive offer.

        Climate risks

        Neighborhood: 10536

        Getting around

        3 / 100
        Car-Dependent
        5 / 100
        Somewhat Bikeable

        Nearby schools

        GreatSchools rating
        Schools provided by the listing agent
        • Elementary: Increase Miller Elementary School
        • Middle: John Jay Middle School
        • High: John Jay High School

        Source: OneKey® MLS as distributed by MLS GRID. This data may not be complete. We recommend contacting the local school district to confirm school assignments for this home.

        Local experts in 10536

        Similar homes

        Skip to the end of the carouselSkip to the beginning of the carousel