27 Castle Road
Piermont, NY, 10968 $ 4,195,000
Bedrooms4 Baths4.0 Sq 3,800 Monthly Estimate*
$ 26,488
for $4,195,000 with 4 bedrooms and 4 full baths. This 3,800 square foot home was built in 2006 on a lot size of 3.16.
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.
See more
FeaturesInteriorInterior Amenities First Floor Bedroom First Floor Full Bath Chefs Kitchen Dry Bar Eat-in Kitchen Entrance Foyer Formal Dining High Ceilings Kitchen Island Pantry Primary Bathroom Soaking Tub Stone Counters Storage Was
Basement See Remarks Walk-Out Access
Flooring Wood
Total Fireplaces 2
Fireplace Features Electric Wood Burning
Basement Features See Remarks Walk-Out Access
Basement (Y/N) Y
Window Features Wall of Windows
Fireplace Y/N Y
Half Baths 0
Total Bedrooms 4
Total Baths 4
See more
GeneralSewer Septic Tank
Heating Hot Water Steam
Cooling Central Air
Utilities Electricity Connected Natural Gas Connected Water Connected
Appliances Dishwasher Dryer Oven Range Refrigerator Washer
Garage Spaces 4
Patio/Porch Features Deck Patio Porch
Architectural Style Mid-Century Modern
Construction Materials Stone Stucco Wood Siding
Year Built 2006
View Trees/Woods
Property Subtype Single Family Residence
Tax Year 2025
Parcel Number 392489-075-013-0001-004-002-0000
County Rockland County
Property Type Residential
HOA N
Garage Y/N Y
Total Rooms 14
Full Baths 4
High School Tappan Zee High School
City Orangetown
Senior Community Y/N N
High School District South Orangetown
Carport Y/N N
Spa Features Bath
Elementary School William O Schaefer Elementary School
Property Attached Y/N N
Tax Annual Amount 35765
Middle/Junior High School South Orangetown Middle School
Building Area Units Square Feet
Standard Status Active
Middle/Junior School District South Orangetown
Elementary School District South Orangetown
Tax Assessed Value 500400
See more
ExteriorExterior Amenities Garden
Parking Features Attached Garage Attached Garage
Water Source Public
Total Parking 4
Parking Spaces 4
Spa N
Building Area Total 5800
Waterfront Y/N N
See more
* Excluded FeaturesList ByRichard W EllisListing Agent
Ellis Sotheby's Intl RealtyBroker
Affordability Calculator
- Monthly Principal & Interest
- $26,488
- Monthly Property Taxes
- $2,980
- Monthly Home Insurance
- --
Default based on a 30-year fixed rate of 6.49% with 20% down. The estimated payment is offered for convenience and is not an offer of credit. Due to market fluctuations, interest rates are subject to change at any time and without notice. Your individual rate may vary. Rates may differ for FHA, VA or jumbo loans.
Learn more about how to save NearbySingle family listings in Piermont, NY
Average List Price $1,502,173
Percent of Sale Price 64%
About Piermont, NY 2,392 Population
-1% Since 2002
$ 109,388 Median Income
51.03 Median Age
18% Households with Children
Trends Information provided by ATTOM Data Solutions.
4101304 Elementary School
4100917 Middle School
Tappan Zee High School High School
Pricing History| Date | Price | Price Change | Description |
|---|
| 7/14/2026 | $4,195,000 | | Listed Price |