Our board members

Expertise, experience and diversity

The Sixty Bricks Chair and Board Directors use their considerable knowledge and experience to set the company’s strategic path, oversee its performance and ensure Shareholders priorities are delivered while complying with the relevant legal standards.

Chairman Paul Lowenberg

Paul Lowenberg - Chairman

Paul was appointed as independent Chair of Sixty Bricks in October 2020. He is an experienced non-executive Chair and Director. Earlier this year he was appointed Chair of Dawson Housing, a start-up Registered Provider focused on providing specialist housing services in the North-west. He is also a NED on Islington Law Centre and Rightsnet, an IT based advice service organisation. Paul established and has run a public service management consultancy practice for over 25 years. He is committed to ensuring Sixty Bricks delivers the highest environmental, social and governance outcomes and achieves its financial targets.

Sarah Wall

Sarah Wall

Sarah Wall joined the Board of Sixty Bricks in October 2020 as an independent Non-Executive Director, focused on funding and risk management. She is also currently serving as a Non-Executive Director on the Board of Saltaire Housing, which runs the Government's new Affordable Homes Guarantee Scheme, where she chairs the Credit Committee and sits on the Audit Committee. In her executive career, Sarah has spent over 20 years funding and risk managing investments in affordable housing, commercial property and social infrastructure including renewable energy, for the pensions and insurance industries. Sarah has been a Fellow of the Chartered Institute for Securities and Investment since 2012 and holds a degree from St. John's College, Oxford.

Jonathan Martin

Jonathan Martin

Jonathan is a Chartered Surveyor and has worked for national government agencies, private consultancy, and local government, playing key property-based roles, supporting the regeneration of places in London, the wider southeast and Milton Keynes. As Director of Inward Investment and Higher Education Academic Relationships at Waltham Forest Council, he leads the focus on securing new Inward Investment, with initiatives attracting new private sector (local, national, and international) investment. The investment growth sectors include regeneration, housing, business, Higher Education, and employment & skills - in order to provide new homes, jobs and education with facilities to support this growth in town centres and high streets.

Jonathan is a Trustee and Board Director of Design South East and a Trustee of The Feathers Association (Youth Charity).

He is also a mentor and is currently part of:

  • The London Mayor’s supported “Makers and Mentors” programme.
  • Future of London “Senior Mentors Initiative”.
John Turnbull

John Turnbull

John's career in local government spans almost 48 years. He joined Sixty Bricks as Non-Executive Director in July 2023. He brings a wide range of corporate finance and public sector experience and has been the Director of Finance at two London boroughs, most recently for 12 years at London Borough of Waltham Forest. 

As well as running financial services, he has also run a range of governance, corporate, education and other frontline services. His experience also includes leading on major capital, complex procurement projects and transformation. 

As a member of the Society of London Treasurers, he has served as Secretary and President, as well as serving on the London Financial Advisory Group for a number of years, representing London Treasurers on various issues. 

He is a member of the CCLA's Public Sector Advisory Deposit Fund Board and an independent member of the Newham College of Further Education Audit Committee.

A qualified accountant and a member of the Chartered Institute of Public Finance and Accountancy, John holds a Master's Degree in Business Administration.

John Anderson

John Anderson

In October 2020 John Anderson joined the Board of Sixty Bricks as an independent Non Executive Director focusing on development and delivery.

In addition to his role at Sixty Bricks, John is Chairman of Chess Engage, a public affairs company. He is also a Non Executive Board member, and Chair of the Growth and Development Committee at Platform Housing Group, an affordable housing provider in the Midlands.

John is a Fellow of the RICS and has over 40 years experience of all aspects of the development industry. He joined The Berkeley Group in 2000 and for the last 12 years was Regional Chairman responsible for two of the largest regeneration projects in the Country, at Royal Arsenal Riverside and Kidbrooke Village.