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$1,495,000 Just Listed
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Property Description
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.
Full Property Details
Full Property Details for 521 Barrett Hill Rd
General
- Price: $1,495,000
- Taxes: $20,222
- Status: Active
- Type: Single Family
- Source: Long_Island
- MLS ID: 1059397
- Updated: 10/6/2026
- Added to Site: 6 day(s) ago
Interior
- Number of Rooms: 11
- Interior Features: Beamed Ceilings, Chefs Kitchen, Crown Molding, Eat-in Kitchen, Entrance Foyer, Original Details, Pantry, Smart Thermostat, Soaking Tub, Storage, Walk Through Kitchen
- Fireplace: Yes
- Number of Fireplaces: 1
- Fireplace(s): Wood Burning
- Appliances: Dishwasher, Dryer, Gas Range, Refrigerator, Stainless Steel Appliance(s), Washer, Oil Water Heater, Water Softener Owned
- Laundry Facilities: Yes
- Flooring: Hardwood, Tile
Rooms
Bathrooms
- Total Bathrooms: 2
- Full Bathrooms: 2
Bedrooms
- Total Bedrooms: 3
Other Rooms
- Laundry: In Basement, Laundry Room
Additional Information
- Pool: Yes
- Private Pool: Yes
- Pool Description: In-Ground, Outdoor Pool, Salt Water
Exterior
- Exterior Features: Garden
- Porch/Patio/Deck: Patio, Terrace
Parking
- Garage: Yes
- Garage Spaces: 1
- Total Spaces: 3
- Parking Features: Off Street, Parking Lot, Private
Location
- County: Putnam County
- Driving Directions: Use GPS to 521 Barrett Hill Rd, Mahopac.
School Information
- High School District: Mahopac
- Elementary School: Austin Road Elementary School
- Middle School: Mahopac Middle School
- High School: Mahopac High School
Heating & Cooling
- Central air: Yes
- Cooling Type: Central Air
- Heating Type: Ducts, Forced Air, Radiant Floor
Utilities
- Sewer: Septic Tank
- Water: Well
- Utility Description: Cable Available, Electricity Connected, Propane
Structural Information
- Architectural Style: Colonial, Farmhouse
- Detached/Attached: Detached
- Construction: Wood Siding
- Basement: Yes
- Basement Desc.: Finished, Walk-Out Access
- Unfinished Attic: Yes
- Sq. Ft. Source: CubiCasa
- Year Built: 1825
Lot Features
- Property View: Trees/Woods
- Lot Size (Acres): 3.13
- Lot Size (Sq. Ft.): 136,343
- Fence: Yes
- Fencing (Description): Partial, Perimeter
Financial Considerations
- Tax Amount: $20,222.5
Disclosures and Reports
- Special Conditions: None
- Property ID: 372000-042-000-0001-011-000-0000
Listed by Four Seasons Sothebys Intl
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Schools
Schools serving 521 Barrett Hill Rd
School District:Mahopac Central School District
| Name | Grades | Distance |
|---|---|---|
Austin Road Elementary School 390 Austin Road, Mahopac, NY 10541 | K-5 | 2.4 mi |
Mahopac Middle School 425 Baldwin Place Road, Mahopac, NY 10541 | 6-8 | 3.8 mi |
Mahopac High School 421 Baldwin Place Road, Mahopac, NY 10541 | 9-12 | 4.1 mi |
Disclaimer:
School attendance boundaries provided by ATTOM Data Solutions and are for reference only. Contact the school directly to verify enrollment eligibility.
Price & Sales History for 521 Barrett Hill Rd
Date
Details
Price
Change
Source
10/06/2026
Listed
$1,495,000
129.29%
MLS
3/19/2008
Sold
$652,000
—
Public Record
Disclaimer: Historical sales information is derived from public records provided by the county offices. Information is not guaranteed and should be independently verified.
Tax History
Tax History for 521 Barrett Hill Rd
Year
Property Taxes
Change
Tax Assessment
Change
2024
$20,132
—
$799,000
7%
2024
$20,132
274%
$746,700
5%
2020
$5,377
—
$711,100
11%
2020
$5,377
—
$640,600
6%
2020
$5,377
-71%
$603,800
2%
2016
$18,849
-1%
$592,000
3%
2020
$19,029
3%
$574,800
2%
2018
$18,482
3%
$563,500
4%
2017
$17,876
-6%
$541,800
64%
2016
$18,930
—
$330,000
—
2015
$18,844
2%
$330,000
—
2015
$18,490
2%
$330,000
—
2013
$18,112
—
$330,000
—
Disclaimer: Historical tax information is derived from public records provided by the county offices. Information is not guaranteed and should be independently verified.
Estimate the Cost
Estimate the Cost for 521 Barrett Hill Rd
521 Barrett Hill Road, Mahopac, NY 10541 (MLS# 1059397) is a Single Family property with 3 bedrooms and 2 full bathrooms. 521 Barrett Hill Road is currently listed for $1,495,000 and was received on October 06, 2026. Want to learn more about 521 Barrett Hill Road? Do you have questions about finding other Single Family real estate for sale in Mahopac? You can browse all Mahopac real estate or contact a Coldwell Banker agent to request more information.
