Our team

Maxwell James
CEO

Charles Calverley
Executive
Director

Giles Martin
Development
Director

Max is the former chief executive of Quintain PLC and delivered Greenwich Peninsula and Wembley Park. Previously he was former Global Head of Real Estate at HSBC, worked in real estate and investment banking at Barings, Lazards and Lowndes Partners, which he formed. He founded Keystone in 2017, and directs Keystone’s commercial strategy and investments.

Charles held various senior director level positions at Berkeley Homes and was the Regional Director of Redrow.
He joined Maxwell at Quintain as Residential Development Director in 2013, before co-founding Keystone in 2017. Charles is responsible for all operational direction across the business.

Giles has over 15 years of experience working for both the public and private sector and has an extensive knowledge of major mixed use regeneration projects across London and the Home Counties. He joined Keystone from Redrow Homes where he was the Planning Director for London. Giles now heads up the planning side of Keystone and is responsible for navigating all development sites through the planning process.

Maxwell James
CEO

Max is the former chief executive of Quintain PLC and delivered Greenwich Peninsula and Wembley Park. Previously he was former Global Head of Real Estate at HSBC, worked in real estate and investment banking at Barings, Lazards and Lowndes Partners, which he formed. He founded Keystone in 2017, and directs Keystone’s commercial strategy and investments.

Charles Calverley
Executive
Director

Charles held various senior director level positions at Berkeley Homes and was the Regional Director of Redrow.
He joined Maxwell at Quintain as Residential Development Director in 2013, before co-founding Keystone in 2017. Charles is responsible for all operational direction across the business.

Giles Martin
Development
Director

Giles has over 15 years of experience working for both the public and private sector and has an extensive knowledge of major mixed use regeneration projects across London and the Home Counties. He joined Keystone from Redrow Homes where he was the Planning Director for London. Giles now heads up the planning side of Keystone and is responsible for navigating all development sites through the planning process.

Our previous
experience

Over the last two decades we have led on numerous projects and award-winning schemes across London, and delivered in excess of 30,000 new homes as well as over 2M sqft of commercial space.