Private Island Retreat on Oscawana
For Sale
$289,000
1 Maple and Lot 35 Dunderberg Rd Island, Putnam Valley, NY 10579
Land, Putnam Valley, NY
Property SizeContact for details
Lot Size0.50 Acres
Days on Market144
Property Features for 1 Maple and Lot 35 Dunderberg Rd Island
General Information
Property type
Land
Property subtype
Other
Zoning
R3
View
Water
Elementary school
Putnam Valley Elementary School
Middle school
Putnam Valley Middle School
High school
Putnam Valley High School
Elementary school district
Putnam Valley
Middle school district
Putnam Valley
High school district
Putnam Valley
Standard status
Active
APN
372800-062-010-0002-006-000-0000
Lot size
0.50 Acres
Taxes and HOA fees
Tax Year
2025
Tax Annual Amount
4049
Utilities
Water front features
Waterfront
Water front
1
Listing Agency:
Coldwell Banker Realty · Coldwell Banker Real Estate
(914) 245-3400
Listed By:
Thomas J. Santore · License #30SA0872839
(845) 590-5488
Added: Mar 31
Changed: Aug 20
Last Checked: Aug 21 at 2:06AM
MLS# 976394
Copyright © 2026 OneKey MLS. All rights reserved. All information provided by the listing agent/broker is deemed reliable but is not guaranteed and should be independently verified.
Investment Insights
Based on property information with market context.
This unique property features a private island on Oscawana Lake in Putnam Valley, offering a secluded escape. The offering includes two tax parcels that are being conveyed together: the island itself and a separate dock lot providing essential access. The island offers a natural setting and untouched character, inviting simple, meaningful use such as day trips, quiet afternoons, fishing, or relaxing evenings. This is strictly a recreational property to be enjoyed as is. The value lies in the experience rather than development intensity. The dedicated, deeded access enhances the island's value, making it a destination to reach and enjoy. Together, these two parcels create a singular opportunity.
Key Highlights
- Private island on Oscawana Lake with dedicated dock parcel.
- Two tax parcels included: island and dock lot, conveyed together.
- Deeded access to the island via private dock.
Property Analytics
Property Profile
Current Use
Location Intelligence
Trade Area within ½ mile
26
Businesses Nearby
Explore this area
Business Placement
Demographics for 10579, NY
8,633
Population
3,642
Households
2.4
Avg Household Size
45
Median Age
47%
College-Educated
96%
High-School Grad
34.7 sq mi
ZIP Area
249
Density / Sq Mi
$135,893
Median Household Income
$58,367
Median Earnings
$2,723
Median Rent
$515,000
Median Home Value
Questions? Ask Rey
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Frequently Asked Questions
What type of property is this?
Waterfront Land - Secluded island with dedicated dock for recreational use.
Where is this waterfront land located?
The property is located at 1 Maple and Lot 35 Dunderberg Rd Island Putnam Valley, NY.
What is the asking price?
The asking price for this property is $289,000.
What are key features of this property?
This property features: Private island on Oscawana Lake with dedicated dock parcel.; Two tax parcels included: island and dock lot, conveyed together.; Deeded access to the island via private dock.
