Discover an extraordinary 320+ acre legacy property in Putnam County — a former summer camp steeped in history and now poised for its next chapter with absolute privacy and limitless potential.
Spanning 8 separate tax lots, the offering includes nearly 50 acres of commercially zoned land across 3 parcels and approximately 270 acres of residentially zoned land across the remaining 5.
The crown jewel is the 95.63-acre flagship parcel, entered from Ballyhack Road, where a pristine 20-acre private lake with a lakefront lodge overlooking.
A brand-new, never-used $7 million state-of-the-art sewage treatment plant.
The lake has a newly updated dam and semi-developed waterfront.
Dozens of the original camp structures that still stand, all in various stages of disrepair.
Waterfront pavilion and dining hall to the left.
Areas to dine behind the dining hall.
One of the prior beachfront locations.
Side of the lakefront lodge.
At one time the camp had over 70 buildings. Building #6 was the recreational hall, or lakefront lodge.
One of the mosaics from Camp Cummings still remains on one of the buildings.
Behind the pavilion was the inground pool. Additional structures behind for changing rooms.
Another Dining hall with a stage in the center.
House of worship with dormitory behind.
Recreation and education building.
Counselor cabins.
The sewage treatment plant is capable of servicing 60-65 homes sits ready on site.
It has a current SPDES permit and 100% redundant backup system for development endeavors.
Generator for the STP.
Miles of established trails wind through the property.
Beyond the private lake, the land is enriched by two tributaries of the East Branch Croton River and approximately 1,640 feet of direct frontage on the river itself — a renowned stretch for kayaking and canoeing within the pristine Great Swamp watershed.
At the Ballyhack entrance, a charming 3-bedroom ranch home serves as the ideal caretaker’s residence or gatehouse.
Front of the post card from the Educational Alliance Camp.
Back of the post card.
Surrounded by nature's embrace, every acre beckons for recreation and adventure, defining the perfect escape for those seeking solitude, sport, and serenity.
Discover an extraordinary 320+ acre legacy property in Putnam County a former summer camp steeped in history and now poised for its next chapter with absolute privacy and limitless potential. Spanning 8 separate tax lots, the offering includes nearly 50 acres of commercially zoned land across 3 parcels and approximately 270 acres of residentially zoned land across the remaining 5. The crown jewel is the 95.63-acre flagship parcel, entered from Ballyhack Road, where a pristine 20-acre private lake with a newly updated dam and semi-developed waterfront awaits. Miles of established trails wind through the property, passing dozens of the original camp structures that still stand in various stages of disrepair a lakefront lodge, large dining halls, recreation and education buildings, dormitories, medical facilities, and even an inground pool all evoking a bygone era while inviting imaginative reuse or redevelopment. A brand-new, never-used $7 million state-of-the-art sewage treatment plant capable of servicing 60-65 homes sits ready on site, complete with current SPDES permit, full generator, and 100% redundant backup system. An additional entrance can be reclaimed from Old Route 22 via one of the commercial parcels, offering outstanding accessibility and development flexibility. Beyond the private lake, the land is enriched by two tributaries of the East Branch Croton River and approximately 1,640 feet of direct frontage on the river itself a renowned stretch for kayaking and canoeing within the pristine Great Swamp watershed. At the Ballyhack entrance, a charming 3-bedroom ranch home serves as the ideal caretaker’s residence or gatehouse. Rolling topography, mature woodlands, and dramatic elevations create a landscape that feels worlds away, yet the property remains remarkably convenient to major highways and Metro North train stations for easy access to and from NYC. Surrounded by nature's embrace, every acre beckons for recreation and adventure, defining the perfect escape for those seeking solitude, sport, and serenity. The possibilities for development and use are vast with the permitted and special uses available with this multi-zoned, multiple-parcel property. A sample of permitted uses in C1 zoning include: research and development, veterinary hospitals, greenhouses and nurseries, restaurants, health or fitness clubs, recreational sports facilities, business and professional offices, banks, drive-in and fast food establishments. A sample of special uses include: light manufacturing, retail centers, warehouses, conference and cultural centers, membership club, nursery schools and day care centers. Rarely does a canvas of this scale, privacy, natural beauty, and built-in modern utilities come available. This is more than land it’s a once-in-a-generation opportunity to shape something truly remarkable.
Details
MLS #
938337
Listing Type
For Sale
Sub-Type
Resale
Status
Active
Days On Site
285
Listing Provided By
McGrath Realty Inc | Brian McGrath
Features
Acreage
320.43
Water Front
Yes
Property View
Lake, Mountain(s), Trees, Woods,
Exterior
Lot Features
Level, Near Public Transit, Near School, Near Shops, Part Wooded, Private, Rolling Slope, Secluded, Split Possible, Views, Waterfront
Utilities
Utilities
See Remarks
Sewer
Other
Taxes
Tax Year
2025
Tax Assessed Value
6806800
Tax Annual Amount
200365
Area Information
State
NY
County
Putnam County
City
Brewster
Zip Code
10509
Community Name
Lake Charles
School District
Brewster High School
Elementary School
John F. Kennedy
High School
Brewster High School
Listing VS Median (in Lake Charles)
Price: $14,900,000
low | high
Med: $0
On site: 285
low | high
Med:
Sourced by Back At You
Market Activity 10509
Date
Sales
Avg $ Per SqFt
Min Sale Price
Max Sale Price
Med Sale Price
Date: Jul 2026
Sales: 2
Avg $ Per SqFt: $350.16
Min Sale Price: $415,000
Max Sale Price: $440,000
Med Sale Price: $427,500
Date: Jun 2026
Sales: 9
Avg $ Per SqFt: $274.81
Min Sale Price: $330,000
Max Sale Price: $1,530,000
Med Sale Price: $625,000
Date: May 2026
Sales: 14
Avg $ Per SqFt: $347.06
Min Sale Price: $369,750
Max Sale Price: $3,925,000
Med Sale Price: $642,000
Date: Apr 2026
Sales: 27
Avg $ Per SqFt: $284.41
Min Sale Price: $245,000
Max Sale Price: $1,200,000
Med Sale Price: $500,000
Date: Mar 2026
Sales: 12
Avg $ Per SqFt: $318.56
Min Sale Price: $139,999
Max Sale Price: $800,000
Med Sale Price: $380,000
Date: Feb 2026
Sales: 8
Avg $ Per SqFt: $300.09
Min Sale Price: $375,000
Max Sale Price: $675,000
Med Sale Price: $517,500
Date: Jan 2026
Sales: 8
Avg $ Per SqFt: $319.57
Min Sale Price: $155,000
Max Sale Price: $780,000
Med Sale Price: $487,500
Date: Dec 2025
Sales: 7
Avg $ Per SqFt: $201.6
Min Sale Price: $2,150
Max Sale Price: $1,100,000
Med Sale Price: $550,000
Date: Nov 2025
Sales: 10
Avg $ Per SqFt: $347.61
Min Sale Price: $220,000
Max Sale Price: $995,000
Med Sale Price: $507,500
Date: Oct 2025
Sales: 14
Avg $ Per SqFt: $253.94
Min Sale Price: $206,000
Max Sale Price: $1,200,000
Med Sale Price: $484,000
Date: Sep 2025
Sales: 7
Avg $ Per SqFt: $273.98
Min Sale Price: $330,000
Max Sale Price: $760,000
Med Sale Price: $415,000
Sourced by Back At You
Jul 2026
Sales:
2
Avg $ Per SqFt:
$350.16
Min Sale Price:
$415,000
Max Sale Price:
$440,000
Med Sale Price:
$427,500
Jun 2026
Sales:
9
Avg $ Per SqFt:
$274.81
Min Sale Price:
$330,000
Max Sale Price:
$1,530,000
Med Sale Price:
$625,000
May 2026
Sales:
14
Avg $ Per SqFt:
$347.06
Min Sale Price:
$369,750
Max Sale Price:
$3,925,000
Med Sale Price:
$642,000
Apr 2026
Sales:
27
Avg $ Per SqFt:
$284.41
Min Sale Price:
$245,000
Max Sale Price:
$1,200,000
Med Sale Price:
$500,000
Mar 2026
Sales:
12
Avg $ Per SqFt:
$318.56
Min Sale Price:
$139,999
Max Sale Price:
$800,000
Med Sale Price:
$380,000
Feb 2026
Sales:
8
Avg $ Per SqFt:
$300.09
Min Sale Price:
$375,000
Max Sale Price:
$675,000
Med Sale Price:
$517,500
Jan 2026
Sales:
8
Avg $ Per SqFt:
$319.57
Min Sale Price:
$155,000
Max Sale Price:
$780,000
Med Sale Price:
$487,500
Dec 2025
Sales:
7
Avg $ Per SqFt:
$201.6
Min Sale Price:
$2,150
Max Sale Price:
$1,100,000
Med Sale Price:
$550,000
Nov 2025
Sales:
10
Avg $ Per SqFt:
$347.61
Min Sale Price:
$220,000
Max Sale Price:
$995,000
Med Sale Price:
$507,500
Oct 2025
Sales:
14
Avg $ Per SqFt:
$253.94
Min Sale Price:
$206,000
Max Sale Price:
$1,200,000
Med Sale Price:
$484,000
Sep 2025
Sales:
7
Avg $ Per SqFt:
$273.98
Min Sale Price:
$330,000
Max Sale Price:
$760,000
Med Sale Price:
$415,000
MLS Number: 938337
Brian McGrath – (845) 721-0940 – bmcgrath@mcgrathrealtyinc.com
MLS Internet Data Exchange (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, and that the data is deemed reliable but is not guaranteed accurate by the OneKey® MLS
MLS Number: 938337
Brian McGrath – (845) 721-0940 – bmcgrath@mcgrathrealtyinc.com