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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.

More Info

Basic Information

  • Bedrooms4
  • Mls StatusNew
  • Bathroom4
  • Parcel Number M:0I13 B:0008 L:001C,1073013

Tax Information

  • Tax Assessed Value $2,432,100
  • Tax Year 2026
  • Taxes$23,372

School Information

  • Elementary SchoolSouth River

Parking

  • Parking Spaces16

Rooms

  • Bathrooms Total Decimal 3.5
  • Bedroom 2 Second
  • Bedroom 3 Second
  • Bedroom 4 Second
  • Dining Room First
  • Family Room First
  • Full Bath3
  • Half Baths1
  • Kitchen First
  • Living Room First
  • Master Bedroom Second
  • Office First

Basic Information

  • List Price$2,495,000
  • MLS Number73577993
  • Modification Date09/16/2026
  • Property SubTypeSingle Family Residence
  • Virtual TourView Tour

Location

  • Address1230 S River Street
  • Building Number1230
  • CountyPlymouth
  • StateMA
  • StreetS River Street
  • TownMarshfield
  • Zip02050

Building

  • BasementFull
  • Building Area Units Square Feet
  • FireplaceYes
  • Fireplace Features Dining Room, Family Room, Living Room
  • Fireplaces Total 6
  • FoundationStone
  • Patio And Porch Features Porch - Enclosed, Deck - Roof, Patio
  • Property StyleNeoclassical
  • Rooms11
  • Utilities For Gas Range
  • Window Features Insulated Windows
  • Year Built1890
  • Year Built Details Actual, Renovated Since
  • Year Built Source Public Records

Property

  • Acreage2.86

Interior

  • Flooring Wood, Tile, Flooring - Hardwood, Flooring - Stone/Ceramic Tile
  • Interior Features
    • Bonus Room
    • Den
    • Lighting - Overhead
    • Mud Room
    • Office
    • Recessed Lighting

Exterior

  • Exterior Features Porch - Enclosed, Deck - Roof, Patio
  • RoofTile

Utilities

  • Cooling Central Air
  • Cooling YN Yes
  • Heat SystemYes
  • Heating Baseboard, Natural Gas, Fireplace(s)
  • Sewer Private Sewer
  • Water Source Public

Property Information

  • Square Feet4,850
  • Building Area Source Public Records
  • Living Area 4,850
  • Lot Size Square Feet 124,582
  • Lot Size Units Acres
  • View YN Yes

Amenities

  • AmenitiesPublic Transportation, House of Worship, Marina, Public School, T-Station
  • Appliances IncludedOven, Dishwasher, Microwave, Refrigerator, Range Hood

Water Body

  • Miles to Beach1
  • Waterfront Features Ocean, River,1/2 to 1 Mile To Beach, Beach Ownership(Public)

Other

  • Date Listed09/16/2026
  • Farm Land Area Units Square Feet

Map Location

Driving Directions

Listed by Amy March of The Firm

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