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749 S Main St

Barnstable, MA 02632

10 beds
8 baths
8,834 sqft
~2 acre lot
$820 per sqft
1924 build
– on site

Before Cape Cod was a popular vacation destination, Helen J. Quinn, heiress to the Grand Union grocery chain, purchased almost 20 acres of land by the Centerville River. This property was Mrs. Quinn's personal estate, later dubbed 'Sandcastle' for its sandy English stucco exterior. Brilliantly designed for hosting family or guests, the layout is timeless, with formal spaces on the entry side of the property and sunny, glassed-in rooms the length of the water side, offering 180 degree views of Craigville River and Nantucket Sound. With 8 bedrooms in the main house and a full, 1400-sq ft apartment above the separate 4 bay carriage house, there's space for everyone. A deep water dock connected to ''the best boathouse on the river,'' makes day trips to Nantucket possible, or store a launch to zip across the river for sunbathing on the white sands of Long Beach. A brand new sea wall and elevated back yard were installed summer 2024.

Listing courtesy of MLSPIN / Katie Clancy / William Raveis Real Estate & Homes Services

Last checked: Checking… • Last updated Mar 25, 2025 •

MLS# 73163694 —

This home is listed in more than one place. See it here.

The Building

Year Built:

1924
Year Built Details:

Actual
Year Built Source:

Public Records
Architectural Style:

Tudor
Roof:

Shingle
Basement:

Finished
Foundation Details:

Concrete Perimeter
Exterior Features:

Patio
Patio And Porch Features:

Patio
Building Area Total:

8834
Building Area Units:

Square Feet
Building Area Source:

Other

Interior

Rooms Total:

16
Flooring:

Wood
Fireplace:

true
Fireplaces Total:

8

Room Dimensions

Living Area:

8834
Living Area Source:

Other

Location

Directions:

GPS directions are reliable.
Latitude:

41.635939
Longitude:

-70.354505

The Property

Parcel Number:

M:185 L:012001,2205387
Property Type:

Residential
Property Subtype:

Single Family Residence
Property Attached:

false
Lot Size Units:

Acres
Lot Size Area:

1.79
Lot Size SqFt:

77972
Lot Size Acres:

1.79
Zoning:

RD
View:

Scenic View(s)
View:

true
Other Structures:

Guest House
Waterview:

Yes
Waterview Features:

River
Waterfront:

true
Waterfront Features:

Waterfront
Farm Land Area Units:

Square Feet
Road Frontage Type:

Public

Listing Agent

Contact info:

Taxes

Tax Year:

2023
Tax Annual Amount:

50456
Tax Assessed Value:

6049900

Beds

Bedrooms Total:

10

Baths

Total Baths:

7
Total Baths:

8
Full Baths:

6
Half Baths:

2
Master Bath Features:

Yes

The Listing

Home Warranty:

false
Sub Agency Relationship Offered:

No

Heating & Cooling

Heating:

Steam
Heating:

true
Cooling:

Heat Pump
Cooling:

true

Utilities

Sewer:

Private Sewer
Water Source:

Public

Appliances

Appliances:

Gas Water Heater

The Community

Senior Community:

false
Spa:

false
Pool Private:

true
Pool Features:

Pool - Inground Heated
Association:

false

Parking

Garage:

true
Attached Garage:

false
Garage Spaces:

4
Carport:

false
Parking Total:

6
Parking Features:

Detached
Covered Spaces:

4

Monthly cost estimate

Asking price

$7,250,000

Expense	Monthly cost
Mortgage	$38,821
Taxes	$4,204
Insurance	$1,993
Utilities	$566 See report
Total	$45,584/mo.^*
	^*This is an estimate

Explore the Area

My Commute

From

Walk Score®

Provided by WalkScore® Inc.

Bike Score®

Provided by WalkScore® Inc.

Transit Score®

Provided by WalkScore® Inc.

Soundscore™

Provided by HowLoud

Air Pollution Index

Provided by ClearlyEnergy

Sale history

Date	Event	Source	Price	% Change
2/17/25 Feb 17, 2025	Price Changed	MLSPIN	$7,250,000	-14.7%
9/10/24 Sep 10, 2024	Price Changed	MLSPIN	$8,500,000	-14.1%
12/14/23 Dec 14, 2023	Price Changed	MLSPIN	$9,900,000	-10.0%

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This house located in Mid Cape, Barnstable, MA 02632 is currently for sale for $7,250,000. 749 S Main St is a 8,834 square foot house with 10 beds and 8 baths that has been on Estately for 553 days. 749 S Main St is in the Mid Cape neighborhood of Barnstable and has a WalkScore® of 6, making it car-dependent.

Listing Courtesy of: MLSPIN and William Raveis Real Estate & Homes Services.

The property listing data and information set forth herein were provided to MLS Property Information Network, Inc. (MLSPIN) from third party sources, including sellers, lessors and public records, and were compiled by MLS Property Information Network, Inc. The property listing data and information are for the personal, non commercial use of consumers having a good faith interest in purchasing or leasing listed properties of the type displayed to them and may not be used for any purpose other than to identify prospective properties which such consumers may have a good faith interest in purchasing or leasing. MLS Property Information Network, Inc., Estately and its subscribers disclaim any and all representations and warranties as to the accuracy of the property listing data and information set forth herein. Users may not reproduce or redistribute the data found on this site. The data is for viewing purposes only. All information provided is deemed reliable but is not guaranteed by Estately or MLSPIN and should be independently verified.