Single Family
521 Barrett Hill Road
Active · Carmel · Putnam County, NY 10541
- Bedrooms
- 3 Beds
- Bathrooms
- 2 Baths
- Year built
- 1825
- Est. monthly taxes
- $1,685.21
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About this home
Half Moon Farm delivers an idyllic Hudson Valley escape just one hour from Manhattan. Set on over three serene acres, this meticulously updated 19th-century farmhouse seamlessly connects historic authenticity with modern luxury for buyers seeking a private country retreat or turnkey farm property. Originally built in the early 1800s, the historically registered three-bedroom, two-bathroom residence features restored original wood floors, light-filled interiors, and classic architectural proportions. A welcoming entry opens to a sunlit living room with a wood-burning fireplace, custom built-ins, and a quiet reading nook. Double doors lead directly to a covered patio framed by climbing grapevines and honeysuckle that invites hummingbirds into the surrounding organic herb and flower gardens. The property offers established plantings of rosemary, oregano, thyme, basil, lavender, dill, chives, sage, and lemon balm set alongside roses and butterfly bushes with rich, organically maintained soil. The kitchen pairs rustic charm with modern efficiency, featuring butcher block countertops, custom cabinetry, stainless steel appliances, and an expansive pantry with exceptional storage. A finished lower level adds flexible living space with radiant heated floors, a recreation area, and direct walkout access to the landscaped backyard. Outdoors, mature 200-to-300-year-old maple trees and historic stonework surround a secluded bluestone saltwater pool set within a former sheep paddock. The grounds double as a thriving natural sanctuary frequently visited by native wildlife, including eagles, screech owls, rabbits, indigenous tortoises, and wild turkeys. Auxiliary structures like a sizable garden shed and flexible acreage provide prime potential for future guest cottages or secondary outbuildings. Located moments from the Sedgewood Club beachfront and golf course, Half Moon Farm represents an opportunity to own an eco-conscious Hudson Valley retreat within convenient commuting distance of New York City.
Listing snapshot
- Days on site
- 22 days
- Listed on MLS
- Oct 6, 2026
- Full baths
- 2
- Half baths
- 0
- Annual property tax (MLS)
- $20,222.5
- Tax year
- 2025
- Area source (MLS)
- CubiCasa
- Listing brokerage
- Four Seasons Sothebys Intl
- MLS ID
- KEY1059397
- Last updated
- Oct 7, 2026
General features
- Property type
- Single Family
- Property subtype
- Single Family Residence
- Year built
- 1825
- Garage
- Yes
- Garage spaces
- 1
- Total parking
- 3
- Parking
- Off Street, Parking Lot, Private
- Water source
- Well
- Sewer
- Septic Tank
- Utilities
- Cable Available, Electricity Connected, Propane
Interior features
- Basement
- Finished, Walk-Out Access
- Heating
- Ducts, Forced Air, Radiant Floor
- Cooling
- Central Air
- Interior
- Beamed Ceilings, Chefs Kitchen, Crown Molding, Eat-in Kitchen, Entrance Foyer, Original Details, Pantry, Smart Thermostat, Soaking Tub, Storage, Walk Through Kitchen
- Appliances
- Dishwasher, Dryer, Gas Range, Refrigerator, Stainless Steel Appliance(s), Washer, Oil Water Heater, Water Softener Owned
- Flooring
- Hardwood, Tile
- Fireplace
- Yes
- Fireplaces
- 1
Exterior features
- Architectural style
- Colonial, Farmhouse
- Construction materials
- Wood Siding
- Exterior
- Garden
- Private pool
- Yes
Schools (MLS)
- Elementary school
- Austin Road Elementary School
- Elementary school district
- Mahopac
- Middle school
- Mahopac Middle School
- Middle school district
- Mahopac
- High school
- Mahopac High School
- High school district
- Mahopac
School information is provided by the MLS. Confirm attendance eligibility with the school district.
Recent activity
- Listing updated from MLS
- First seen on this site
- MLS status changed
Location
Estimate monthly payment
Estimated monthly principal & interest—
Monthly property taxNot provided
Monthly association / maintenance feesNot provided
Estimated monthly total of entered costs—
Listing data is supplied by the MLS and may change without notice.
