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681 River Road, Cos Cob CT 06807
681 River Road, Cos Cob CT 06807
Connecticut>Fairfield County>Hillcrest Park

681 River RoadCos Cob, CT 06807

For Sale

$3,995,000

Smart Buyer Rebate $39,950

Experience modern luxury in this meticulously renovated retreat set on 2.3 private acres, moments from Greenwich amenities. This architectural home offers a brand new gourmet kitchen with Wolf and Sub-Zero appliances, elegant open-plan living, custom built-ins and multiple fireplaces. The main level primary suite boasts a sitting area/office, spa bath with heated floors and dual walk-in closets. The second level features all en-suite bedrooms, including an additional primary suite option. New Marvin windows and doors showcase serene private views and an expansive deck that creates seamless indoor-outdoor living. The fully finished basement offers spacious living space and an option for a play room, fitness room, or additional work space. Sophisticated and thoughtful design at its finest.

Listed by Cora Lynch-O'Meara

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License #RES.0803479

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Brown Harris Stevens CT, LLC

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203-561-3306

Last updated October 26, 2026

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Source: FlexMLS #126050

Listing Facts

  • TypeSingle-family
  • NeighborhoodHillcrest Park
  • Bedrooms4
  • Bathrooms4.5
  • Days on Prevu16
  • Taxes$17,920/year
  • Size4,969 sqft
  • Price per sqft$804

Amenities

  • Washer/Dryer
  • Air Conditioning
  • Parking

Location

Mortgage Calculator

Listing History

10/15/2026
Listed by Brown Harris Stevens CT, LLC
$3,995,000
  1. 10/15/2026$3,995,000
    Listed by Brown Harris Stevens CT, LLC

Property Details for 681 River Road

Exterior

Construction

  • Roof: Asphalt
  • Year Built: 1986
  • Architectural Style: Contemporary
  • Construction Materials: Fiber Cement

Features

  • Patio And Porch Features: Deck

Measurements

  • Building Area Total: 4,969
  • Lot Features: Backlot, Parklike
  • Lot Size Acres: 2.32
  • Lot Size Area: 2
  • Lot Size Square Feet: 101,059
  • Lot Size Units: Acres

Financial

Taxes

  • Parcel Number: 12-1549/S
  • Tax Annual Amount: $17,920.00
  • Tax Assessed Value: $1,709,260.00

Interior

Features

  • Fireplace: Yes
  • Fireplaces Total: 2
  • Interior Features: Kitchen Island, Eat-in Kitchen, Sep Shower

Rooms

  • Basement: Finished, Full
  • Bathrooms Full: 4
  • Bathrooms Half: 1
  • Bathrooms Total Integer: 5
  • Bedrooms Total: 4

Other

General

  • Exclusions: Call LB

Location

  • City Region: Cos Cob

Parking

Parking

  • Garage Spaces: 3
  • Parking Features: Attached Garage, Garage Door Opener

Schools

Elementary School

  • Elementary School: North Mianus

Middle or Junior School

  • Middle Or Junior School: Eastern

Utilities

Equipment

  • Cooling: Central Air
  • Has Cooling: Yes
  • Heating: Forced Air, Oil
  • Has Heating: Yes
  • Sewer: Town Sewer
  • Water Source: Well

Frequently Asked Questions

How many bedrooms and bathrooms does this single-family home have?

There are 4 bedrooms and 4.5 bathrooms in this single-family home at 681 River Road.

What schools are nearby to 681 River Road?

Nearby schools include the North Mianus Elementary School and Eastern Middle School.

Does this single-family home have parking?

Yes, there are 3 parking spaces available for 681 River Road.

What are the annual taxes for 681 River Road?

Annual taxes for this single-family home are estimated at $17,920.

How does 681 River Road compare to other single-family homes in Hillcrest Park?

This single-family home is listed 0% below the average price for single-family homes in Hillcrest Park and has been on the market for 1 less day than the typical home in this area.

What is the square footage on this single-family home?

According to the MLS, this listing is 4,969 sqft.

681 River Road is a 4-bedroom, 4.5-bath single-family home for sale in Cos Cob CT 06807. Listed on Prevu for 16 days at $3,995,000. This residence features 4,969 square feet of living space, located in Fairfield County. The median listing price for single-family homes in this area is $3,995,000. Nearby schools include North Mianus Elementary School and Eastern Middle School. Additional amenities include air conditioning, parking, and washer/dryer. Browse more single-family home listings in Fairfield County.

Based on information from Greenwich Multiple Listing Service, Inc. and/or other sources. All data, including all measurements and calculations of area, is obtained from various sources and has not been, and will not be, verified by Prevu or the MLS. Information is provided exclusively for consumer's personal, non-commercial use and may not be used for any purpose other than to identify prospective properties consumer may be interested in purchasing.

Full MLS Disclaimers

Rebate estimate is indicative only and based on listing price and estimated buyer's agent commission paid by owner, if applicable. Final rebates are subject to Terms of Use and may vary due to final negotiated transaction terms.