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27 Castle Road

Piermont, NY 10968
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Bed 4

Bed

Bath 4

Bath

SqFt3,800

Sqft

Acres3.16

Acres(Lot)

KoiHaus, a mid-century modern home on 3.16 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. KoiHaus is more than just a luxury residence; it is a living sanctuary where home and nature exist as one. The landscape is as important as the architectural design. The landscape architect designed the gardens from inside out - thru 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 13 ft tall steel elephant in the front yard, that moves naturally by 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 five 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, framing 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 feature is its split-foundation design. Technically it is 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 vantage point, residents can look out to watch Nishikigoi—the "living jewels" of Japan—swimming gracefully in their natural habitat. 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 (3,700 sqft): 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 (2,000 sqft): This level is above-grade on two sides, large fitness room with a wall of windows (could function as another den), home theater, wet bar room and full bath. A hot tub is conviently located outside its back doors. 3) The Annex: A 1,000 sqft semi-finished space w/climate control offers endless options. Currently used as a practice room for the band! 6,800sf total. Property Specifications: Total sqft: 5,800 + 1,000sqft in the annex. Bedrooms, 4 (possible 6 to 7). Baths, 4. Outdoor living, 1,500sqft of premium IPE decking. Garage: 2 car with duallifts to accommodate 4 vehicles. Climate Control: full zoone heating and central air conitioning 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 from 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 Grand Central) and just 15 minutes to the George Washington Bridge into Manhattan. For the connoisseur of art, architecture, and mindful living, it becomes instantly clear upon arrival: KoiHaus. Nothing Compares.

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Detail Ic Property Details

Property Type : Residential

Price : $4,195,000

AD Id : 88019379

MLS Id : 1017797

Beds : 4

Lot Size : 3.16 Acres

Living Area Size : 3,800

Year Built : 2006

Garage : 4

County : Rockland

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Feature Features

  • Bedroom Information

    Total beds: 4

    Bathroom Information

    Total Baths: 4 Full Baths: 4

    Room Information

    Rooms Total: 14 Basement: Walk-Out Access
  • Flooring Information

    Wood
  • Interior Features

    Dry Bar, Eat-in Kitchen, Entrance Foyer, High Ceilings, Kitchen Island, Pantry, Soaking Tub, Stone Counters, Storage Appliances: Dishwasher, Dryer, Oven, Range, Refrigerator, Washer
  • Heating & Cooling

    Has Heating: Yes Heating: Hot Water, Steam Has Cooling: Yes Cooling: Central Air

  • Building Information

    Year Built: 2006 Building Area Total: 5800 Construction Materials: Stone, Stucco, Wood Siding Patio And Porch Features: Deck, Patio, Porch Private Pool: No View: Trees/Woods
  • Exterior Features

    Exterior Features: Garden

  • Lot Information

    Lot Size Acres: 3.16 Lot Size Square Feet: 137650 Lot Description: Garden, Landscaped, Near Golf Course, Private, See Remarks, Views, Wooded

  • Listing Price Information

    Listing Price: $4195000

  • Tax Information

    Parcel Number: 392489-075-013-0001-004-002-0000 Annual Tax: $35765

  • Parking Information

    Parking Total: 4 Attached, Garage

    Garage Information

    Has Garage: Yes Has Attached Garage: Yes Garage Space: 4

  • School Information

    Elementary School: William O Schaefer Elementary School
    Junior High School: South Orangetown Middle School
    Senior High School: Tappan Zee High School
  • Utility Information

    Natural Gas Available, Electricity Connected, Natural Gas Connected, Water Connected
  • Location Information

    WaterSource: Public
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Nearby Home Value

Address Estimate Bed Bath Sq. Ft Lot Size
112 Paradise Avenue, Piermont, NY, 10968 $399,000 3 2 1,986 1,986 SqFt
35 Upper Ritie Street, Piermont, NY, 10968 $1,150,000 4 3 2,370 2,370 SqFt
45 Upper Ritie Street, Piermont, NY, 10968 $1,070,000 6 4 2,399 2,399 SqFt
870 Piermont Avenue, Piermont, NY, 10968 $1,195,000 5 4 3,420 3,420 SqFt

The data relating to real estate for sale on this website comes in part from the Internet Data exchange of OneKey MLS. IDX information is provided exclusively for consumers' 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 deemed reliable but not guaranteed. Copyright © 2026 OneKey MLS. All Rights Reserved

ByOwner last updated this listing 07/18/2026 @ 21:16

MLS: 1017797 LISTED BY: Richard Ellis, Ellis Sotheby's Intl Realty 845-353-4250 SOURCE: OneKey MLS

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