There’s something rare about owning a place that feels completely removed from everything—yet still within reach. Tucked within Oscawana Lake in Putnam Valley sits a true escape: a private island paired with its own dedicated dock parcel along the shoreline, offering a gateway to a different pace of life. This offering includes two tax parcels—62.10-2-6, the island itself, and 62.14-1-35, a separate dock lot that provides your essential access point. They are being conveyed together, inseparable by design, forming an experience that begins at the water’s edge and carries you across to your own secluded retreat. The journey is part of the story. You arrive at your private dock, step into a boat, and within moments, the mainland fades behind you. What replaces it is stillness—water gently moving against the shoreline, the sound of wind through trees, and a sense of ownership that’s increasingly hard to find. This is not just land; it’s separation, privacy, and presence. The island itself offers a natural setting shaped by time and untouched character. It invites simple, meaningful use—day trips, quiet afternoons, fishing at sunrise, or evenings watching the light settle across the lake. Whether you envision a rustic campsite, a gathering place or simply a personal refuge, the value here lies in the experience rather than development intensity. Importantly, this is being offered strictly as a recreational property to be enjoyed as it is. It’s about preserving what makes it special: the water, the isolation, and the freedom to enjoy it on your own terms. Properties like this are increasingly uncommon—especially with dedicated, deeded access included. Without the dock parcel, the island is just a view. With it, it becomes something far more meaningful: a destination you can reach, use, and truly call your own. Together, these two parcels create a singular opportunity—a place where the shoreline is just the beginning, and the real value lies just beyond it.
Lot/land
$289,000
1 Maple and Lot 35 Dunderberg Rd Island, Putnam Valley, NY 10579
--beds
--baths
0.5Acres
Land
Built in ----
0.5 Acres Lot
$-- Zestimate®
$--/sqft
$-- HOA
What's special
Private islandPrivate dock
- 196 days
- 641
- 47
Zillow last checked:
Listing updated:
Listed by:
Coldwell Banker Realty 914-245-3400,
Thomas J. Santore 845-590-5488
Source: OneKey® MLS as distributed by MLS GRID,MLS#: 976394
Facts & features
Property
Features
- Has view: Yes
- View description: Water
- Has water view: Yes
- Water view: Water
- Waterfront features: Waterfront
Lot
- Size: 0.5 Acres
Details
- Parcel number: 37280006201000020060000000
- Zoning: R3
- Special conditions: None
Utilities & green energy
- Sewer: None
Community & HOA
Location
- Region: Putnam Valley
Financial & listing details
- Tax assessed value: $319,300
- Annual tax amount: $4,048
- Date on market: 3/31/2026
- Listing agreement: Exclusive Right To Sell
Estimated market value
Not available
Estimated sales range
Not available
Not available
Price history
| Date | Event | Price |
|---|---|---|
| 3/31/2026 | Listed for sale | $289,000 |
Source: | ||
Public tax history
Tax history is unavailable.
Monthly payment
Climate risks
Neighborhood: 10579
Nearby schools
Schools provided by the listing agent
- Elementary: Putnam Valley Elementary School
- Middle: Putnam Valley Middle School
- High: Putnam Valley High School
Source: OneKey® MLS as distributed by MLS GRID. This data may not be complete. We recommend contacting the local school district to confirm school assignments for this home.




