For Sale
Single family home for sale at 20 Old Stone Rd, Clarkstown, NY 10989 | MLS# 969160 | Listing updated on 2026-09-18
Photo 1 of Single family home for sale at 20 Old Stone Rd, Clarkstown, NY 10989 | MLS# 969160 | Listing updated on 2026-09-18
Photo 2 of Single family home for sale at 20 Old Stone Rd, Clarkstown, NY 10989 | MLS# 969160 | Listing updated on 2026-09-18
Photo 3 of Single family home for sale at 20 Old Stone Rd, Clarkstown, NY 10989 | MLS# 969160 | Listing updated on 2026-09-18
Photo 4 of Single family home for sale at 20 Old Stone Rd, Clarkstown, NY 10989 | MLS# 969160 | Listing updated on 2026-09-18
34+
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$2,895,000

Monthly Est:$14,409

  • Beds Icon3 Beds
  • Beds Icon
    3 Baths
  • Beds Icon6,100sqft

20 Old Stone Rd, Clarkstown, NY 10989

$14,409/moEst:

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  • Single Family Residence

  • Built in 1950

  • $-- HOA

  • 3.81 acres lot

  • $475/sq.ft

Description

Perched on Hook Mountain West and surrounded by 80 acres of protected parkland and open space, Llama Ridge is among the most private and commanding properties in the Hudson Valley. A short walk from the house, a breathtaking overlook reveals the full sweep of the Hudson River — a view that feels both earned and intimate. This is not simply a home. It is a setting for a life lived with intention: a place to create, to think, or simply to exist within one of the most beautiful natural landscapes in the Northeast.

THE ARCHITECTURE:
Llama Ridge is the newly completed work of Hudson Valley architect Douglas McClure, built by Eric Bosley. McClure’s guiding concept was a modern
reinterpretation of the New England connected farmstead — those rambling 19th- and early 20th-century structures where extended families joined barn and home by breezeway as their lives expanded. The result is a home of remarkable presence. Three crisp, contemporary volumes are arranged along the mountain ridge, each articulated with rows of finely detailed farmhouse windows. With its focus on clean lines and expansive views, the composition is striking from every angle, the geometry of the architecture playing against the organic drama of the landscape.

THE INTERIOR:
With south and west exposures, Llama Ridge is flooded with natural light throughout the day. The great room — an extraordinary 60-foot expanse anchored by custom tray ceilings that quietly organize the space — becomes a theater of shifting light and shadow as the sun moves across the sky, the slender mullions of the farmhouse windows casting ever-changing patterns on the walls and wide plank oak floors. Tall ceilings, a generous floor plan exceeding 6,100 square feet, and meticulously selected finishes combine to create interiors that feel both grand and intimately livable. Every detail reflects the standard of a premier luxury residence, newly completed and built for lasting distinction.

A RICH PROVENANCE:
The story of this mountain site is as layered and remarkable as the Hudson Valley itself. A modest Cape-style house and an older barn, believed to significantly predate it, occupied the land around the time of World War II. The barn later found new life as an off-the-beaten-path antique shop, drawing curious visitors up the mountain road in search of hidden treasures. In time, four llamas came to live on the mountain, roaming as a close-knit herd for years and drawing local schoolchildren up the road to meet them. Greenhouses on the northern side of the land were filled with orchids that flourished in this magical microclimate. The stone foundation of one greenhouse remains visible today, quiet evidence of the life this land has held — and perhaps a hint at what it might hold again.

THE LOCATION:
Llama Ridge borders Upper Nyack and sits within easy reach of some of the region’s most celebrated river towns, including Nyack, Piermont, Irvington, and Tarrytown. New York City is genuinely accessible — 45 minutes by car to Midtown, with convenient mass transit options as well.

Llama ridge is a singular property. More than a home, it’s a lifestyle.

  • Houzeo last checked: 12 minutes ago
  • Listing updated: September 18, 2026 at 3:46 pm
  • Listing Provided by: Richard W Ellis (914) 393-0438 | Ellis Sotheby's Intl Realty (845) 353-4250
  • Source: OneKey MLS-NY | MLS#: 969160 OneKey MLS-NY

Property Details

  • Status

    Active

  • Type

    Single Family Residence

  • No. of Stories

    -

  • County

    Rockland County

  • City

    Clarkstown

  • Neighborhood

    --

  • Year Built

    1950

  • HOA Fees

    -

  • Finished Area

    6,100 sqft

  • Lot Size

    3.81 acres lot

  • Basement Area

    - sqft

  • MLS Name

    OneKey MLS

  • MLS Number

    969160

  • MLS Status

    Active

  • Days on Market

    168

  • Cumulative Days on Market

    147

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Location

Facts & Features

Rooms

  • Bedrooms & bathrooms

    Bedrooms: 3

    Bathrooms: 3

  • Living Room

    Level: First

  • Dining Room

    Level: First

  • Kitchen

    Level: First

  • Bedroom 1

    Level: First

  • Bathroom 1

    Level: First

  • Bedroom 2

    Level: First

  • Bathroom 2

    Level: First

  • Primary Bedroom

    Level: Second

  • Primary Bathroom

    Level: Second

  • Auxiliary Room

    Level: Second

Interior

  • Flooring

    Hardwood

  • Heating

    Baseboard, Forced Air, Radiant

  • Appliances

    Dishwasher, Dryer, Oven, Range, Refrigerator, Washer

  • Sewer

    Septic Tank

  • Cooling

    Central Air

  • Window Features

    Casement, Floor To Ceiling Windows, Oversized Windows, Screens, Wall Of Windows

  • Exterior Features

    Garden

  • Interior Features

    First Floor Bedroom, First Floor Full Bath, Chefs Kitchen, Eat In Kitchen, Entrance Foyer, Formal Dining

Construction

  • Year Built

    Year Built: 1950

  • Home type

    Single Family Residence

  • Construction Materials

    Frame, Stucco

  • Property Condition

    Updated/remodeled

  • Architectural Style

    Barndominium, Contemporary

Utilities & Energy

  • Utilities

    Electricity Connected, Water Connected

  • Parking Features

    Detached, Driveway

  • Basement

    Crawl Space, Partial

  • Security Features

    Security System

  • Fireplace Features

    Wood Burning

  • Water Source

    Well

Other Features

  • Patio And Porch Features

    Patio, Wrap Around

Price History

DateEventPrice

08/05/2026

Source: mls_logoOneKey MLS-NY #KEY969160

Price Decreased

$2,895,000 -3.34%

$475/sqft

05/26/2026

Source: mls_logoOneKey MLS-NY #KEY969160

Price Increased

$2,995,000 +3.45%

$491/sqft

04/25/2026

Source: mls_logoOneKey MLS-NY #KEY969160

Listed for Sale

$2,895,000 -9.39%

$475/sqft

04/25/2026

Source: mls_logoOneKey MLS-NY #KEY969160

Price Increased

$3,195,000 +129.44%

$524/sqft

09/23/2024

Source: mls_logoOneKey MLS-NY #KEYH6273900

Price Increased

$1,392,500 +74.06%

$228/sqft

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Based on information from OneKey MLS, through Oct 10, 2026, 04:16PM. IDX information is provided exclusively for personal, non-commercial use, and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing. Information is deemed reliable but not guaranteed. © 2026 OneKey® MLS. All rights reserved.

Advertising Broker: Derek Greene | The Greene Realty Group