List of Keller Williams Realty Stores in Cos Cob, CT Outlet Note Regular Brands Keller Williams Realty Connecticut Cos Cob Rating 4.9 based on 53 votes Official Website www.kw.com/ Products Real Estate NameAddressPhone Name/Address/Phone Keller Williams Realty outlet - Cos Cob 133 E Putnam Ave (203) 900-1020 People Also Viewed