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Land with Home for Sale in Katonah, New York

310 Mount Holly Rd, Katonah, NY 10536

$5,500,000
4 acres
Active sale
ago
Est $28,436/mo

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, structures that trace their roots to the early 19th century, and the unhurried feeling of a European farmstead - all just an hour from NYC. Bellwether Farm offers something vanishingly rare - the ability to build a primary residence entirely to your own vision, on land already home to a remarkable collection of historic structures. Architectural plans exist for a modern farmhouse of approx. 3,600 sq ft (plus unfinished lower level), featuring dramatic vaulted ceilings, a full wall of glass opening to sweeping meadow views, and clean proportions that sit comfortably within the landscape. The design envisions four bedrooms and three baths, as reflected in the renderings. A seven-bedroom septic is approved and construction drawings are in hand, providing a clear path toward completion. The property's architect and builder are available to collaborate, or a buyer may engage their own design and team. What distinguishes Bellwether Farm is a grandfathered multi-structure configuration no longer achievable under current Bedford zoning. The result is a thoughtfully composed compound comprising approx. 3,300 sq ft across three buildings - the Barn, Carriage House, and Milk House - offering rare flexibility for living, hosting, and creative work that a single-structure residence simply cannot. The Barn, featuring historic details like wavy glass diamond-paned windows and classic barn doors, includes a stylish two-bedroom apartment above and unfinished studio below, suited as a wellness space, creative studio, or lounge. Ready to occupy from day one, the apartment is an ideal base while overseeing construction. The Carriage House, with hand-hewn beams, antique brick floors, and new large-scale commercial glass, awaits final transformation as home office, creative studio, or guest cottage, with living and kitchenette on the main floor and lofted sleeping quarters above. Completion plans for both are approved by the Town of Bedford. The charming Milk House sits quietly apart - perfect for 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. Mature plantings frame an effortless setting for entertaining, future gardens, and pool placement. A gravel motor court lends a graceful 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 creativity, each in its own dedicated setting, in one of the Hudson Valley's most beautiful and sought-after enclaves. Renderings shown. Details available upon request.

6,900
Sq feet
7
Beds
4
Full baths
2
1/2 baths
2026
Built

Location

Street address
310 Mount Holly Rd, Unit A
School district
Katonah-Lewisboro
Elevation
550 feet
Coordinates
41.2742, -73.6356

Property details

Acreage
4 acres
MLS #
MLSLI 976632
Posted

Property taxes

2025
$24,668

Open houses

DateBeginsEndsAppt neededRemarks
Apr 4, 202612:00 PM2:00 PMNo

Details and features

Listing

Type
Residential
Subtype
Single Family Residence

Exterior

Parking
Driveway, Garage
Structures
Guest House

Structure

Condition
Under Construction
Style
Modern, Ranch
Basement
Storage Space, Unfinished, Walk-Out Access
Water
Well
Sewer
Septic Tank
Heating
Forced Air, Heat Pump, Propane
Cooling
Central Air, Ductless, Electric
Materials
Frame, Shake Siding

Interior

Room Count
27
Rooms
Basement, Bathroom x 6, Bedroom x 7, Dining Room
Fireplaces
Yes
Appliances
Convection Oven, Dishwasher, Dryer, Gas Oven, Gas Range, Microwave, Oven, Refrigerator, Stainless Steel Appliance(s), Washer
Features
Breakfast Bar, Built-In Features, Cathedral Ceiling(s), Eat-In Kitchen, Entrance Foyer, First Floor Bedroom, First Floor Full Bath, Formal Dining, High Ceilings, His and Hers Closets, Kitchen Island, Natural Woodwork, Open Floorplan, Open Kitchen, Primary Bathroom, Recessed Lighting, Walk-In Closet(s), Washer/Dryer Hookup

Property utilities

CategoryTypeStatus
GasPropaneConnected

Nearby schools

NameTypeDistrict
Increase Miller Elementary SchoolElementaryKatonah-Lewisboro
John Jay Middle SchoolMiddleKatonah-Lewisboro
John Jay High SchoolHighKatonah-Lewisboro

Listing history

DateEventPriceChangeSource
Mar 26, 2026New listing$5,500,000MLSLI
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This 4-acre property is located at 310 Mount Holly Rd Unit A in Katonah, NY 10536. The property is available for sale for $5,500,000. It has a 6,900 sq ft 7 bedroom, 4 bath house built in 2026.

Checked 2 hours ago — Updated

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