About The Cooper Group
Founded in 1986, The Cooper Group is a top-producing team of realtors with over $325 million
in total sales volume, and rank in the top 1% of realtors in the East Bay. Our exemplary service
continues to be our hallmark, and our passion for real estate is unparalleled. We know the
neighborhoods, the homes, the agents, the best service-providers, and they know us.
Katherine Cooper has been a top-producing agent in Piedmont, Oakland, and Berkeley for over
33 years. She is a long-time resident of Piedmont, graduate of Santa Catalina School for Girls
and UC Berkeley, proud mother of three (including a developmentally disabled daughter),
matriarch, and feminist. Few realtors achieve the level of success that Katherine has enjoyed.
An authentic, personable, ethical realtor, her career has been sustained by building lasting,
positive relationships with her clients from every walk of life, and years of contributions to her
Jack Cooper is a third-generation top-producing realtor, a barred California attorney, an
Oakland homeowner, and a landlord. He was born and raised in Piedmont, and has lived in
Oakland, Berkeley, and San Francisco. He has a reputation in the industry among clients and
agents alike for his hard work, local knowledge, passion for advocacy, analytical ability, and eye
for design. His talent for helping clients sell and buy real estate is matched only by his
enthusiasm. Jack’s positivity and eternal optimism are at the core of everything he does.