For sale

$7,700,000

Est. $45,566/mo —

•

4,069

sq ft

50 Popponesset Island Rd, Mashpee, MA 02649

About this home

The shortest bridge can take you the farthest away.At 50 Popponesset Island Road, across the signature one-lane bridge, something changes.The Pace… The Perspective… the connection to water and all that matters.Set on approximately .8 acre, this four-bedroom, 4,069-square-foot residence enjoys sweeping views across Popponesset Bay toward Nantucket Sound. From morning light on the bay to boats making their way toward the Sound and the changing colors of a Cape Cod sunset, water is the constant backdrop here.And it’s more than something to look at… A private dock puts Popponesset Bay, Nantucket Sound and the waters beyond at your door step. Step outside for a morning on the water, an afternoon cruise or an evening spent watching the sun settle across the Cape Cod landscape.The residence offers more than 4,000 square feet of living space, including two separate guest areas … an increasingly valuable feature for a Cape Cod property where family and friends inevitably want to visit.The house itself is ready for its next chapter. Its interiors provide an opportunity for a new owner to update and reimagine the home around today’s lifestyle and their own tastes. Please verify all information contained herein. The North side of the dock is leased through the end of November.

Single-familyProperty Type

1998Year Built

0.8 acresLot Size

$1,892Price/Sq.Ft.

3 garage spacesParking

Listed by Jack Cotton • Sotheby's International Realty

Listing updated: Aug 23, 2026 at 04:09am

Redfin checked: 3 minutes ago

•Source:MLS PIN #73565684

Payment calculator

$45,566 per month

Principal and interest$39,954

Property taxes

$4,008

HOA dues

Home insurance

$1,604

Utilities

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Open houses

No upcoming open houses.

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Around this home

Schools

K - 12
Preschool & daycare

Kenneth Coombs School

Public PreK-2 • Assigned • 3.0mi

Mashpee High School

Public 7-12 • Assigned • 3.2mi

5/10

Provided by GreatSchools

About Upper

Cape

Upper Cape, located between Buzzards Bay and Cape Cod Bay, is a coastal and village-centered Falmouth neighborhood with saltwater inlets and piney conservation land. The neighborhood’s character concentrates around Main Street in Woods Hole, where ferry docks, marine labs, and compact storefronts set a working-harbor rhythm. The Woods Hole Oceanographic Institution and the Woods Hole Science Aquarium act as cultural anchors, with The Knob adding a quiet shoreline counterpoint. Architecture leans toward shingled Cape cottages and weathered harbor-side buildings, with bikeable lanes linking beaches and ponds. Days track tides, ferry schedules, and the Shining Sea Bikeway’s steady flow. Small marinas and pocket parks keep the landscape open and maritime.

Provided by Walk Score and Local Logic

Offer insights

50 Popponesset Island Rd · $7,700,000

Strong offer

$7.74M and above

75% chance or better to win

Why $7.74M+ is a strong offer

DAYS ON MARKET

The average home goes pending in 24 days.

SALE-TO-LIST

Most homes are selling 1% below list price.

About offer insights

Property details

Interior
Exterior
Finance

Kitchen

Bathroom

Bedroom

Living

Interior features
9 total rooms
Wood, tile and carpet flooring
One fireplace

Bedrooms
Primary bedroom on the first floor (approx. 17 x 15)
Second bedroom on the first floor (approx. 13 x 12)
Third bedroom on the first floor (approx. 10 x 13)
Fourth bedroom on the second floor (approx. 14 x 11)

Bathrooms
4 full bathrooms
Primary bathroom present

Kitchen
Oven
Range
Microwave
Refrigerator
Trash compactor

Laundry & utility
Washer and dryer
Laundry located on the first floor
Gas water heater and water heater

Flooring
Tile
Carpet
Hardwood

Heating & cooling
Baseboard heating
Central air conditioning

Sale and tax history for 50 Popponesset Island Rd

Sale History
Tax History

Date

Event

Price

CCIMLS #22604070

Aug 19, 2026

Listed

$7,700,000

$1,892/sq ft

+36

The shortest bridge can take you the farthest away. At 50 Popponesset Island Road, across the signature one-lane bridge, something changes. The Pace... The Perspective... the connection to water and all that matters. Set on approximately .8 acre, this four-bedroom, 4,069-square-foot residence enjoys sweeping views across Popponesset Bay toward Nantucket Sound. From morning light on the bay to boats making their way toward the Sound and the changing colors of a Cape Cod sunset, water is the constant backdrop here. And it's more than something to look at... A private dock puts Popponesset Bay, Nantucket Sound and the waters beyond at your door step. Step outside for a morning on the water, an afternoon cruise or an evening spent watching the sun settle across the Cape Cod landscape. The residence offers more than 4,000 square feet of living space, including two separate guest areas ... an increasingly valuable feature for a Cape Cod property where family and friends inevitably want to visit. The house itself is ready for its next chapter. Its interiors provide an opportunity for a new owner to update and reimagine the home around today's lifestyle and their own tastes. Please verify all information contained herein. The North side of the dock is leased through the end of November.

MLS PIN #73565684

Aug 19, 2026

Listed

$7,700,000

$1,892/sq ft

Year

Property tax

Land + Additions

Assessment*

2023

$40,603 (+5.0%)

$4,498,200 + $1,293,900

$5,792,100

2022

$38,678 (+0.5%)

$3,657,300 + $1,076,800

$4,734,100

2021

$38,474 (+1.5%)

$3,294,400 + $947,500

$4,241,900

2020

$37,897 (+1.9%)

$3,168,300 + $1,000,800

$4,169,100

2019

$37,201 (+1.5%)

$3,168,300 + $942,300

$4,110,600

2018

$36,642 (−1.9%)

$3,168,300 + $939,500

$4,107,800

2017

$37,358 (+0.7%)

$3,168,300 + $896,800

$4,065,100

2016

$37,084 (+0.2%)

$3,168,300 + $845,100

$4,013,400

2014

$37,027

$3,134,900 + $808,300

$3,943,200

Public record

Beds

Baths

Stories

Lot width

—

Lot depth

—

Lot size

0.8 Acres

Year renovated

1999

Finished Sq. Ft.

4,069

Unfinished Sq. Ft.

—

Total Sq. Ft.

4,069

Year built

1998

Style

Single Family Residential

County

Barnstable County

APN

2344715

Parking Spaces

—

Basement

—

Accessible

—

HOA Dues

—

Garage

—

Features

—

Last updated by owner on Jul 20, 2023.

Climate risks

5/10 Flood Factor

Estimated 47-57% chance of a flood reaching the building in the next 30 years

1/10 Fire Factor

Unlikely to be in a wildfire in next 30 years

5/10 Heat Factor

7 days above 88° expected this year, 19 days in 30 years

8/10 Wind Factor

80% chance of strong winds in next 30 years

3/10 Air Factor

3 unhealthy days expected this year, 4 days in 30 years

Provided by First Street

Historical weather

Mashpee, MA • 02649

Average low and high temperatures (°F)

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Sun exposure

88/ 100

Very good sunlight

Sunscore

There appears to be minimal shading by surrounding buildings, terrain, and vegetation.

10.1 hrs

5.4 hrs

JuneDecember

Provided by Shadowmap

Redfin Estimate for 50 Popponesset Island Rd

$7,525,964

$174K under list price of $7.70M

Nearby comparable homes

The Redfin Estimate uses 6 recent nearby sales, priced between $1.6M to $3.9M.

SOLD JUL 9, 2026
$2,000,000 Last sold price
4 beds3.5 baths3,671 sq ft
26 Cobblestone Cir, Mashpee, MA 02648
$1347/sq ft
smaller lot
24 years newer
SOLD DEC 15, 2025
$2,400,000 Last sold price
4 beds2.5 baths2,348 sq ft
174 Waterway, Mashpee, MA 02649
$870/sq ft
smaller lot
37 years older
SOLD APR 29, 2026
$1,595,000 Last sold price
3 beds3.5 baths2,558 sq ft
4 Cobblestone Cir, Mashpee, MA 02649
$1268/sq ft
smaller lot
23 years newer
SOLD MAR 30, 2026
$3,350,000 Last sold price
4 beds4 baths3,691 sq ft
52 Old Dock Ln, Mashpee, MA 02649
$984/sq ft
larger lot
10 years older
SOLD OCT 27, 2025
$2,297,500 Last sold price
4 beds4.5 baths4,997 sq ft
58 The Hacking Cir, Mashpee, MA 02649
$1432/sq ft
larger lot
finished basement
SOLD JUL 20, 2026
$3,900,000 Last sold price
3 beds4.5 baths4,169 sq ft
140 Summersea Rd, Mashpee, MA 02649
$957/sq ft
smaller lot
11 years newer

Rental earnings

Est. $2,185 per month, based on comparable rentals

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(617) 397-3327