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27 Castle Road, 
Piermont, NY 10968

$4,195,000


4

Beds


4

Baths


3,800

Sq Ft


Single Family

Active

Listed by

Richard W Ellis

Ellis Sotheby'S Intl Realty

Last updated:

August 18, 2026, 10:53 AM

MLS#

1017797

Source:

OneKey MLS

About This Home

27 Castle Road

KoiHaus, a mid-century modern home on 3.25 acres, tucked away on a secluded road near the banks of the Hudson River - just a stone's throw from the legendary 1890s McKim, Mead & White masterpiece, Lord's Castle. This architectural gem is a masterclass in organic design, orchestrating a brilliant dialogue between mid-century modern aesthetics and the spiritual heritage of Japanese landscaping. The landscape is as important as the architectural design. The landscape architect designed the gardens from inside out - through its 100 windows. There is harmony between the home's natural setting and the architectural design. The home rises from the site line as one approaches it, going past the 13ft tall steel elephant in the front yard that moves naturally with the wind. True to the legacy of Frank Lloyd Wright, KoiHaus utilizes clean lines and geometric shapes, that are softened by its Japanese gardens and landscape. The structure is composed of 5 interconnected boxes, wrapped in an exterior palette of concrete, stucco, stone and rich hardwood, all capped by a durable, 50-year roof. What truly defines the exterior, however, is its relationship with light. Its many windows of varying shapes and sizes, frame shifting natural portraits throughout the day. Every detail leans into sleek minimalism. Broad, flat moldings complement natural stone walls, while pocket doors are utilized throughout to maximize room volume and echo Japanese sliding screens. Premium finishes include polished bluestone countertops. KoiHaus' defining engineering feat is its split-foundation design. KoiHaus is technically inside, contrasted by rugged bluestone pathways and antural stone steps winding through the exterior gardens. Two independent structures joined by a dramatic glass-and-steel bridge. Beneath this bridge flows a continuous, sprawling koi pond that meanders under and around the house. From almost any vanage point, residents can look out to watch Nishikigoi - the "living newels" of Japan - swimming gracefully in their natural habitat. Or enjoy Nishikigoi outside from the garden. In Japanese philosophy, the koi represents perseverance, strength, harmony and transformation. Spanning approximately 5,800 sqft of meticulously planned living space, the estate balances grand-scale entertaining with intimate comfort: 1) Main & Upper Levels (3,700sqft): Features a massive chef's kitchen with a vast walk-in pantry, a dining room perfectly positioned for sunset views, and bamboo flooring throughout. 2) Walk-Out Lower Level (2,000sqft): This level is above-grade on 2 sides, large fitness room with a wall of windows (could funcrion as another den), home theater, wet bar room and full bath. A hot tub is conveniently located outside its back doors. 3) The Annex: A 1,000sqft semi-finished space with climate control offers endless customization options. Currently used as a practice room for the band! 6,800sqft total. Property Specifications: Total sqft: 5,800 + 1,000 sqft in the annex. Bedrooms: 4 (possible 6 to 7); Baths: 4. Outdoor living: 1,500sqft of premium IPE decking. Garage: 2 car with dual lifts to accommodate 4 vehicles. Climate Control: full zone heating and central air conditioning throughout. The structure was designed by the acclaimed bi-coastal architect Brian Spence, AIA (NYC & LA), and the landscape was designed by renowned Japanese garden expert Asher Browne. While KoiHaus feels like a world unto itself, it is remarkably connected. Located near the historic Hudson Riverfront village of piermont, it offers five-star dining, local marinas, vibrant farmers markets and a pristine 700-acre state park. Commuting is effortlessly simple: it is a mere 6 minutes to the Mario Cuomo Bridge (connecting to metro-North for a straight shot into Grrand Central) and just 15 minutes to the George Wasington Bridge into Manhattan. For the connoisseur of art, architecture and mindful living, it becomes instantly clear upon arrival: KoiHaus. Nothing Compares.

Home Facts

Single Family

4 Baths

4 Bedrooms

Built in 2006

Price Summary

4,195,000

$1,103 per Sq. Ft.

MLS #:

1017797

Last Updated:

August 18, 2026, 10:53 AM

Added:

a month ago


Rooms & Interior

Bedrooms

Total Bedrooms:

4

Bathrooms

Total Bathrooms:

4

Full Bathrooms:

4

Interior

Living Area:

3,800 Sq. Ft.


Structure

Structure

Architectural Style:

Mid-Century Modern

Building Area:

5,800 Sq. Ft.

Year Built:

2006


Lot

Lot Size (Sq. Ft):

137,650


Finances & Disclosures

Finances

Price:

$4,195,000

Price per Sq. Ft:

$1,103 per Sq. Ft.

Source:OneKey MLS
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Contact an Agent

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If a Coldwell Banker affiliated agent is not available in the area where I need assistance, I agree to be contacted by a real estate agent affiliated with another brand owned or licensed by Anywhere Real Estate (BHGRE®, CENTURY 21®, Corcoran®, ERA®, or Sotheby's International Realty®). I acknowledge that I have read and agree to the terms of use and privacy notice.