1230 S River St Marshfield, MA $ 2,495,000
1230 S River St
$ 2,495,000
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1230 S River St

Marshfield, MA, 02050
$ 2,495,000
Bedrooms4 Baths3.1 Sq 4,850

Monthly Estimate*

$ 15,754

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Single Family Home for sale in Marshfield, MA

for $2,495,000 with 4 bedrooms and 3 full baths, 1 half bath. This 4,850 square foot home was built in 1890 on a lot size of 2.86.

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.

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Single Family Active

Price

$ 2,495,000

Bedrooms

4

Full Bath

3

Half Bath

1

Property Type

Single Family

Taxes

$ 23,372

Style

Neoclassical

Lot Size

2.86

Year Built

1890

Town/City

Marshfield

County/Region

Plymouth

MLS | Web ID

73577993

List By
Amy March

Listing Agent

The Firm

Broker

Affordability Calculator

$17,701
Per Month
89%
11%
0%
Monthly Principal & Interest
$15,754
Monthly Property Taxes
$1,948
Monthly Home Insurance
--
Default based on a 30-year fixed rate of 6.49% with 20% down. The estimated payment is offered for convenience and is not an offer of credit. Due to market fluctuations, interest rates are subject to change at any time and without notice. Your individual rate may vary. Rates may differ for FHA, VA or jumbo loans.
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Pricing History
DatePricePrice ChangeDescription
9/16/2026$2,495,000 Listed Price

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1230 S River St, Marshfield, MA, 02050 is a Single Family Home for sale at $2,495,000 with 4,850 sqft and a lot size of 2.86. 1230 S River St has 4 bedrooms, 3.1 baths, and was built in 1890. The property's zip code is 02050 which is in Marshfield, MA