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3 bedsNew construction
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With a pool
Luxury Homes in Cos Cob, CT
11 listings

Luxury Homes in Cos Cob, CT

Luxury Homes in Cos Cob, CT

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11 Listings
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Luxury Homes in Cos Cob, CT

11 Listings

  1. 89 River Road 304 — photo35Active

Your local brokerage

TO

Thomas O'Leary

Realty.com

Lic. #REB.0790925

Call Thomas

$2,195,000

1 bd · 2 ba · 1,088 sqft

89 River Road 304, Cos Cob, CT

Rob Johnson · Brown Harris Stevens CT, LLC

  • 59 Dandy Drive — photo25Active

    $2,999,000

    5 bd · 4 ba · 5,042 sqft

    59 Dandy Drive, Cos Cob, CT

    Angela Alfano · Coldwell Banker Realty

  • 12B Cross Lane — photo35Active

    $1,725,000

    4 bd · 3 ba · 2,364 sqft

    12B Cross Lane, Cos Cob, CT

    Trish Clark · BHHS New England Properties

  • 9 Maple Street — photo32Active

    $2,695,000

    4 bd · 5 ba · 2,745 sqft

    9 Maple Street, Cos Cob, CT

    Julie Church · Houlihan Lawrence

  • 340 Valley Road 2 — photo20Active

    $2,795,000

    4 bd · 4 ba · 4,088 sqft

    340 Valley Road 2, Cos Cob, CT

    Jennifer Leahy · Compass Connecticut, LLC

  • 7 Sundance Drive — photo38Active

    $2,499,000

    4 bd · 4 ba · 2,226 sqft

    7 Sundance Drive, Cos Cob, CT

    Hope Stone · Compass Connecticut, LLC

  • 154 Valley Road — photo57Active

    $2,850,000

    3 bd · 4 ba · 3,647 sqft

    154 Valley Road, Cos Cob, CT

    Jakob Satir · William Raveis Real Estate

  • 13 Lia Fail Way — photo41Active

    $3,250,000

    4 bd · 7 ba · 6,268 sqft

    13 Lia Fail Way, Cos Cob, CT

    Rachel Overton · BHHS New England Properties

  • 55 Cos Cob Avenue — photo21Active

    $1,800,000

    3 bd · 3 ba · 2,486 sqft

    55 Cos Cob Avenue, Cos Cob, CT

    Milo Ceci · Ceci Properties

  • 28 Gregory Road — photoPrice Reduced31Active

    $1,850,000

    4 bd · 3 ba · 3,597 sqft

    28 Gregory Road, Cos Cob, CT

    Jose Cuartas · Corcoran Centric Realty LLC

  • 47 Ridge Street — photoPrice Reduced22Active

    $2,795,000

    4 bd · 5 ba · 3,408.8 sqft

    47 Ridge Street, Cos Cob, CT

    Joy Metalios · Houlihan Lawrence

  • Explore Cos Cob homes

    By price

    • Under $300K
    • Under $500K
    • Under $700K
    • Luxury

    By bedrooms

    • 2 beds
    • 3 beds
    • 4 beds
    • 5 beds

    By type

    • Single family
    • Townhomes
    • Condos
    • Manufactured homes
    • Multi-family homes
    • Co-ops

    By feature

    • New construction
    • With a pool
    Realty.com

    L. Custen Realty, Inc. d/b/a Realty.com/L. Custen Realty CT, LLC d/b/a Realty.com (Tom O’Leary-Broker)(CT properties only), 8323 Southwest Freeway, Suite 900, Houston, Texas 77074

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    The information provided by this website is for the personal, non-commercial use of consumers and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing. Listing data is derived from various Multiple Listing Services; each source MLS and its required disclaimer are shown with the listings on the applicable page. Realty.com is an independently owned and operated brokerage.

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    Your local brokerage

    TO

    Thomas O'Leary

    Realty.com

    Lic. #REB.0790925

    Call Thomas

    Listing data & MLS disclosures

    Greenwich MLS (GMLS)
    Listing data courtesy of Greenwich MLS. IDX information is provided exclusively for consumers’ personal, non-commercial use, that it may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing. Data is deemed reliable but is not guaranteed accurate by the MLS.
    Listing information ©2026 Greenwich MLS, Inc®. All Rights Reserved. Last Updated: 2026-09-22 15:09:37 UTC

    Cos Cob, CT community profile

    Area
    3.3 sq. mi.

    Source: HJN community data

    Cos Cob housing market

    August 2026 · This period is still settling

    Homes on the market · MLS, as of Aug 30, 2026

    Median list price
    $1,402,000
    Homes for sale
    16

    Housing stock — every home in the area, not only the ones selling or listed · Assessor records, as of Jul 29, 2026

    Median home size
    2,525 sq. ft.