1230 S River St Marshfield MA 02050 | MLS #73577993

1230 S River St
Marshfield, MA, 02050
$2,495,000
4 Beds
3.5 Baths
4,850 SqFt
2.86 Acres
$2,495,000
1230 S River St
Marshfield, MA, 02050
MLS #73577993 image #0
Welcome to Seacrest, also known as the Coast Guard Mansion—an extraordinary estate set high on a commanding hilltop with sweeping panoramic views across the South River to the Atlantic Ocean beyond. More than a residence, Seacrest is a local landmark, a home that has stood witness to more than a century of history and now presents a remarkable opportunity.The estate’s distinctive design has been attributed to Richard Morris Hunt, the celebrated American architect of the Gilded Age whose work helped define some of the country’s most iconic estates. From the moment you arrive, Seacrest possesses a presence that is increasingly rare, grand yet inviting, architecturally significant yet wonderfully livable.Step inside and the craftsmanship immediately takes center stage. A magnificent wood central staircase rises from the entry hall to a dramatic upper walkway connecting the home’s two wings, creating an unforgettable architectural focal point. The spectacular great room soars to approximately twenty-foot ceilings, while the formal dining room is wrapped in rare tiger-eye maple paneling, lending warmth, depth, and character. A handsome mahogany-paneled office provides another richly detailed space.Extensive renovations and thoughtful updates have enhanced Seacrest while respecting the architecture that makes it so special. A significant renovation by respected South Shore architectural firm introduced a beautifully appointed custom center-island kitchen and reimagined primary suite, seamlessly blending modern comfort with the home’s original character. Numerous additional improvements and custom details throughout further elevate the property for today’s lifestyle.Offering approximately 4,880 square feet, twelve rooms, four bedrooms and four bathrooms, Seacrest provides an exceptional combination of grand entertainment spaces and comfortable private retreats. Its gracious proportions, extraordinary millwork, six fireplaces, custom windows, and irreplaceable architectural details create a home unlike anything being built today.Set on 2.86 private acres, the estate enjoys a timeless exterior and a spectacular elevated setting. Seacrest is more than a beautiful home. It is a piece of South Shore history—a landmark property where architecture, craftsmanship, privacy, and breathtaking coastal views come together in a way that simply cannot be recreated.

Property Details

Price:
$2,495,000
MLS #:
73577993
Status:
Active
Beds:
4
Baths:
3.5
Type:
Single Family
Subtype:
Single Family Residence
Listed Date:
Sep 16, 2026
Finished Sq Ft:
4,850
Total Sq Ft:
4,850
Lot Size:
124,582 sqft / 2.86 acres (approx)
Year Built:
1890
NeoclassicalSouth RiverScenic View(s)

Schools

Elementary School:
South River

Interior

Above Grade Finished Area
4850
Appliances
Oven, Dishwasher, Microwave, Refrigerator, Range Hood
Bathrooms
3 Full Bathrooms, 1 Half Bathroom
Cooling
Central Air
Fireplaces Total
6
Flooring
Wood, Tile, Flooring – Hardwood, Flooring – Stone/Ceramic Tile
Heating
Baseboard, Natural Gas, Fireplace(s)
Interior Features
Lighting – Overhead, Recessed Lighting, Den, Office, Bonus Room, Mud Room

Exterior

Architectural Style
Neoclassical
Community Features
Public Transportation, House of Worship, Marina, Public School, T-Station
Exterior Features
Porch – Enclosed, Deck – Roof, Patio
Open Parking Spaces
16
Parking Spots
16
Parking Total
16
Patio And Porch Features
Porch – Enclosed, Deck – Roof, Patio
Roof
Tile
View
Scenic View(s)
Waterfront Features
Ocean, River, 1/2 to 1 Mile To Beach, Beach Ownership(Public)
Window Features
Insulated Windows

Financial

Tax Year
2026
Taxes
$23,372
Need more info?
Ask a Question
Ready to go see it?
Schedule a Showing
Marie Andrews

Marie Andrews

Realtor®, Broker/Owner, GBREB, Notary Public

Marie Andrews is an award-winning, licensed real estate broker with licenses in Massachusetts and Florida. She has been selling real estate in the greater Boston area for over 20 years. Over the past two decades, Marie has worked for Century 21 Advanced Realty, building a reputation as a multi-million dollar producer. She has developed an extensive network of investors, lenders, and attorneys. Marie has a wide knowledge base on property management, Massachusetts real estate law, and building…

More About Marie

Mortgage Calculator

 

Map

Current real estate data for Single Family in Marshfield as of Sep 16, 2026
67
Single Family Listed
93
Avg DOM
487
Avg $ / SqFt
$1,275,529
Avg List Price

Community

Similar Listings Nearby

broker reciprocity
MLS# 73563069broker reciprocity
26 Fox Hill Cir
Marshfield, MA

$2,695,000

3.2 miles away

broker reciprocity
MLS# 73537722broker reciprocity
41 Westford Farm Rd
Duxbury, MA

$2,560,000

5.0 miles away

broker reciprocity
MLS# 73575974broker reciprocity
3 Harbor Lane
Norwell, MA

$2,399,000

4.8 miles away

broker reciprocity
MLS# 73576288broker reciprocity
5 Snowy Owl Circle
Duxbury, MA

$2,395,000

4.7 miles away

broker reciprocity
MLS# 73501157broker reciprocity
1 Trouant’s Island
Marshfield, MA

$2,350,000

2.6 miles away

broker reciprocity
MLS# 73577194broker reciprocity
19 Lincoln Ave
Scituate, MA

$2,290,000

3.7 miles away

broker reciprocity
MLS# 73553040broker reciprocity
128 Gilson
Scituate, MA

$2,249,000

3.9 miles away

broker reciprocity
MLS# 73530448broker reciprocity
26 Neal Gate St
Scituate, MA

$2,150,000

4.1 miles away

broker reciprocity
MLS# 73566624broker reciprocity
25 Hidden Valley Rd
Marshfield, MA

$1,899,000

3.4 miles away

Property Summary

    1230 S River St Marshfield MA is a Single Family for sale in Marshfield, MA, 02050. It is listed for $2,495,000 and features 4 beds, 4 baths, and has approximately 4,850 square feet of living space, and was originally constructed in 1890. The current price per square foot is $514. The average price per square foot for Single Family listings in Marshfield is $487. The average listing price for Single Family in Marshfield is $1,275,529. To schedule a showing of MLS#73577993 at 1230 S River St in Marshfield, MA, contact your Pegasus Realty LLC agent at 781-858-3505.
1230 S River St
Marshfield, MA