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310 Mount Holly Road, Unit A, Katonah, NY 10536

$5,500,000
  • 310 Mount Holly Road, Unit A, Katonah, NY 10536 Main Photo

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New to the Market Active
BEDS7 BATHS4 full 2 partial SQUARE FEET6,900 MLS#976632
STATUSActive PROPERTY TYPEResidential - Single Family SCHOOLKatonah-Lewisboro

Property Description

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

310 Mount Holly Road, Unit A | MLS# 976632

This single family home located at 310 Mount Holly Road, Unit A, Katonah, NY 10536 is currently listed for sale with an asking price of $5,500,000. This property was built in 2026 and has 7 bedrooms and 4 full and 2 partial baths with 6900 sq. ft. Mount Holly Road, Unit A is located within the Katonah-Lewisboro school district. Search Katonah real estate on www.dansmalleyrealtor.com today.

Property Features

Property Type: Residential - Single Family
Basement: Yes
Basement: Storage Space, Unfinished, Walk-Out Access
Cooling: Central Air, Ductless, Electric
Garage: 5
Heating: Forced Air, Heat Pump, Propane
Home Style: Carriage House, Estate, Farmhouse, Modern, Ranch
Lot Size: 4.00 Acres
Taxes: $24,668
Year Built: 2026

Amenities

First Floor Bedroom
First Floor Full Bath
Breakfast Bar
Built-in Features
Cathedral Ceiling(s)
Eat-in Kitchen
Entrance Foyer
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

Feature Descriptions

Appliances: Convection Oven, Dishwasher, Dryer, Gas Oven, Gas Range, Microwave, Oven, Refrigerator, Stainless Steel Appliance(s), Washer
Days on Site: 3
Exterior: Frame, Shake Siding
Fireplace Y/N: Yes
Formal Dining: Yes
GarageY/N: Yes
HorseY/N: Yes
Number Of Kitchens: 3
On Market Date: 2026-03-26
Other Structures: Barn(s), Carport(s), Garage(s), Guest House, Residence, Shed(s), Workshop
Parking Features: Attached, Driveway, Garage, Private
Rental Term: Monthly
Rooms Total: 27
Seller Concession: Yes
Sewer: Septic Tank
Utilities: Electricity Connected, Propane, See Remarks, Trash Collection Private
Water: Well

Local Schools

High School: John Jay High School
Middle School: John Jay Middle School
Elementary School: Increase Miller Elementary School
School District: Katonah-Lewisboro

Estimate Your Payment

Estimated Payment

$ 31,470.83 per month $27,810.99 Principal & Interest $2,055.67 Property Tax $1,604.17 Homeowner's Insurance

Change Payment Information

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(Payments are an estimate and may vary by lender)

Listed By / Shown By

Listing By

Agency Name: Serhant LLC
Agency Phone: 646-480-7665

agent picture

Shown By

Agent Name: Dan Smalley
Agent Phone: Cell: (631) 469-8957
Agency Title: Coldwell Banker American Homes

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