Seller's Agent in 2025
Joanna Dresser
LandVest, Inc.
(617) 584-6855
1 in this area
44 Total Sales
A secluded treasure nestled on a private island. In the 1950s, Paul Mellon, heir to the famous banking family that established the National Gallery of Art in Washington D.C., and his wife Bunny chose this setting for a summer retreat. They created a home of elegance, comfort and great beauty, where they entertained world leaders, movie stars and industrialists. Bunny shaped the gardens and landscape, creating an exquisite blend of native plantings and trees. The 7,300-square-foot main house is integrated into the land, with its eight bedrooms offering views of either the sea or the gardens. Natural pathways wind through the property, connecting the main house to cottages—including a former art studio converted into a private suite—and lead to a beach house, where the Mellons hosted President John F. Kennedy and Jacqueline. With over 500 feet of waterfront, a private dock, and access to a private island, now serving as a protected bird sanctuary, this is an island haven like no other.
Last Buyer's Agent
Non Member
Non Member Office
| Date | Type | Sale Price | Title Company |
|---|---|---|---|
| Deed | $835,000 | -- | |
| Deed | $525,000 | -- | |
| Deed | $390,000 | -- |
| Date | Status | Loan Amount | Loan Type |
|---|---|---|---|
| Open | $626,250 | Purchase Money Mortgage | |
| Previous Owner | $350,000 | Purchase Money Mortgage |
| Date | Event | Price | List to Sale | Price per Sq Ft | Prior Sale |
|---|---|---|---|---|---|
| 12/23/2025 12/23/25 | Sold | $20,000,000 | -16.1% | $2,736 / Sq Ft | |
| 10/23/2025 10/23/25 | Pending | -- | -- | -- | |
| 06/10/2025 06/10/25 | For Sale | $23,850,000 | +22.3% | $3,263 / Sq Ft | |
| 12/31/2012 12/31/12 | Sold | $19,500,000 | -32.2% | $2,829 / Sq Ft | View Prior Sale |
| 12/31/2012 12/31/12 | Pending | -- | -- | -- | |
| 12/01/2011 12/01/11 | For Sale | $28,740,000 | -- | $4,169 / Sq Ft |
| Year | Tax Paid | Tax Assessment Tax Assessment Total Assessment is a certain percentage of the fair market value that is determined by local assessors to be the total taxable value of land and additions on the property. | Land | Improvement |
|---|---|---|---|---|
| 2025 | $9,447 | $1,022,400 | $405,600 | $616,800 |
| 2024 | $8,612 | $983,100 | $405,600 | $577,500 |
| 2023 | $7,849 | $874,100 | $378,700 | $495,400 |
| 2022 | $7,531 | $674,800 | $266,300 | $408,500 |
| 2021 | $7,772 | $663,700 | $291,500 | $372,200 |
| 2020 | $7,816 | $637,500 | $305,000 | $332,500 |
| 2019 | $7,964 | $651,700 | $318,200 | $333,500 |
| 2018 | $7,684 | $610,800 | $321,000 | $289,800 |
| 2017 | $7,533 | $602,600 | $321,000 | $281,600 |
| 2016 | $7,430 | $602,600 | $321,000 | $281,600 |
| 2015 | -- | $649,700 | $307,900 | $341,800 |
Seller's Agent in 2025
Joanna Dresser
LandVest, Inc.
(617) 584-6855
1 in this area
44 Total Sales
K
Seller Co-Listing Agent in 2025
Kelly Crosby
LandVest, Inc.
(774) 487-7574
1 in this area
6 Total Sales
N
Buyer's Agent in 2025
Non Member
Non Member Office
Seller's Agent in 2012
John Cotton
Sotheby's International Realty
(508) 776-0009
1 in this area
83 Total Sales
Source: MLS Property Information Network (MLS PIN)
MLS Number: 73388659
APN: BARN-000335-000000-000019