681 River Road

Cos Cob, CT 06807

  • $2,700,000 Reduced by $50,000
  • 4 Beds
  • 4/1 Baths
  • 2.32 Acres
  • 1986 Built

Chalet d'Amour A simple Zillow filter tells the story: homes in Greenwich built after 1980, on 2+ acres, with 3,500+ square feet above ground, sold in the last 24 months -- the minimum was $3.6 million. At $2.7M, you're $900,000 below that floor. Enough to make this house exactly yours, and still pay less than anyone else did. You've never seen a house like this. An architecturally crafted contemporary on 2.32 private acres across from Mianus River Park. Soaring vaulted ceilings, two stone fireplaces, walls of glass, and light that pours in from every angle. A first-floor primary suite with cathedral ceiling, dual baths, dual walk-in closets, and a grand whirlpool tub beneath peaked windows. Three more bedrooms upstairs, all en suite -- one with a sauna shower. Five full baths,one bath throughout. Open kitchen flows to living and dining. An expansive deck overlooks a completely private backyard -- and the front yard is just as secluded. Full basement. Three-car garage. North Mianus, Eastern, Greenwich High. With sky in every direction, you'd swear you were somewhere in the Alps -- not minutes to town and train. A love letter written in stone, glass, and light -- yours to make perfect.

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Property Highlights
  • ELEMENTARY : North Mianus
  • MID. SCHOOL : Eastern
  • NEIGHBORHOOD : 4 - Cos Cob
  • DAYS ON MARKET : 150
  • MLS : 124081

Additional Information

ADDITIONAL INFORMATION
  • BASEMENT DESCRIPTION: Full, Unfinished
  • ELEMENTARY SCHOOL: North Mianus
  • MIDDLE SCHOOL: Eastern
  • ON MARKET DATE: 2025-12-11
  • PARKING: Garage Door Opener
  • STYLE: Contemporary
  • TAX AMOUNT: $17,174
  • TYPE: Residential
  • YEAR BUILT: 1986
INTERIOR/EXTERIOR FEATURES
  • BEDS: 4
  • CONSTRUCTION MATERIALS: Wood Siding
  • COOLING: Central Air
  • EXTERIOR FEATURES: Therapeutic Whirlpool, Deck
  • FULL BATHS: 4
  • HEAT: Forced Air, Oil
  • INTERIOR FEATURES: Kitchen Island, Eat-in Kitchen
  • ROOF: Asphalt

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Location for 681 River Road, Cos Cob, CT

Community

Cos Cob>

Cos Cob

Fairfield County, Connecticut

The lovely coastal community of Cos Cob is situated on the scenic Cos Cob Harbor on Long Island Sound’s north side. It is one of several upscale neighborhoods within the town of Greenwich in southern...

Market Stats for Cos Cob, Connecticut

An exclusive report that informs you of residential real estate sales activity and trends in Cos Cob, Connecticut.

Request More Info for 681 River Road, Cos Cob, CT

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Information provided by the Greenwich Multiple Listing Service, Inc. © 2026. Listing Courtesy of Paula Waldman of BHHS New England Properties (203.869.0500). Data is updated as of 19:18 PM on 05/09/2026