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1 Masthead Ln

Dartmouth, MA 02747

4 beds
6 baths
7,891 sqft
~2 acre lot
$316 per sqft
1900 build
– on site

Extraordinary Dartmouth estate overlooking breathtaking Padanaram Harbor, and a short stroll to the beach. Exceptional home offers 4 bedrooms, 4 full baths, and 2 half bath. Crafted with impeccable quality, the home showcases beautiful Brazilian cherry hardwood floors throughout. The main living space centers around a dramatic 20-foot stone fireplace, with soaring ceilings and expansive windows that flood the home with natural light. Enjoy a home gym, sauna, and unmatched comfort. 2 total fireplaces and 2 gas stoves. An additional upstairs guest room doubles as a 5th bedroom or den. Front apartment with its own address (317 Gulf Rd) provides flexibility as an in-law suite or office, ideal for multigenerational living or business needs. Main home has 3 full bathrooms, 2 half baths. Front apartment has 1 full bathroom. Smart home automation was recently upgraded. A massive 12-car garage adds rare functionality to this serene coastal retreat. Luxury, space, and location converge!

Listing courtesy of MLSPIN / Kyle Seyboth / Century 21 The Seyboth Team

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

MLS# 73396499 —

The Building

Year Built:

1900
Year Built Details:

Actual
Year Built Source:

Public Records
Architectural Style:

Antique
Foundation Details:

Slab
Exterior Features:

Deck
Door Features:

French Doors
Patio And Porch Features:

Deck
Security Features:

Security System
Building Area Total:

7891
Building Area Units:

Square Feet
Building Area Source:

Public Records

Interior

Interior Features:

Central Vacuum
Rooms Total:

23
Fireplace:

true
Fireplaces Total:

2

Room Dimensions

Living Area:

7891
Living Area Source:

Public Record

Location

Directions:

Please use GPS.
Longitude:

-70.971492
Latitude:

41.582815

The Property

Property Type:

Residential
Property Subtype:

Single Family Residence
Property Attached:

false
Parcel Number:

M:0035 B:0014 L:0000,2779277
Zoning:

SRB
Lot Size Units:

Acres
Lot Features:

Corner Lot
Lot Size Area:

1.84
Lot Size SqFt:

80150
Lot Size Acres:

1.84
Waterfront:

false
Waterfront Features:

Bay
Farm Land Area Units:

Square Feet

Listing Agent

Contact info:

Taxes

Tax Year:

2025
Tax Book Number:

14609
Tax Annual Amount:

18283
Tax Assessed Value:

2123500

Beds

Bedrooms Total:

4

Baths

Total Baths:

5
Total Baths:

6
Full Baths:

4
Half Baths:

2

The Listing

Home Warranty:

false
Sub Agency Relationship Offered:

No

Heating & Cooling

Heating:

Radiant
Heating:

true
Cooling:

Ductless
Cooling:

true

Utilities

Sewer:

Public Sewer
Water Source:

Public

Appliances

Appliances:

Water Heater

The Community

Community Features:

Shopping
Association:

false
Spa:

false
Senior Community:

false

Parking

Parking Features:

Attached
Parking Total:

6
Attached Garage:

true
Garage:

true
Garage Spaces:

12
Carport:

false
Covered Spaces:

12

Monthly cost estimate

Asking price

$2,500,000

Expense	Monthly cost
Mortgage	$13,386
Taxes	$1,523
Insurance	$687
Utilities	$517 See report
Total	$16,113/mo.^*
	^*This is an estimate

Explore the Area

My Commute

From

Walk Score®

Provided by WalkScore® Inc.

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Air Pollution Index

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Sale history

Date	Event	Source	Price	% Change
6/25/25 Jun 25, 2025	Listed / Active	MLSPIN	$2,500,000	20.5% (8.7% / YR)
2/13/23 Feb 13, 2023		MLSPIN	$2,075,000	-9.5%
12/20/22 Dec 20, 2022		MLSPIN	$2,294,000

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This house located in Dartmouth, MA 02747 is currently for sale for $2,500,000. 1 Masthead Ln is a 7,891 square foot house with 4 beds and 6 baths that has been on Estately for 0 days.

Listing Courtesy of: MLSPIN and Century 21 The Seyboth Team.

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.