Meet our Executive Director Group (EDG)

Alternatively, meet our Board

Nicholas Harris


Nicholas became Stonewater’s CEO in 2016, having been CEO of Raglan Housing Association since January 2010. Previous to this, he held the CEO position at Raven Housing Trust for seven years and Group Operations Director for the Swaythling Housing Group for seven years.

He has extensive experience in both the social housing sector and local authorities and considerable knowledge in socio-economic regeneration matters.

Sue Shirt

Executive Director - Customer Experience

Sue is Stonewater’s Executive Director for Customer Experience. She has worked at an executive level in a range of organisations for the last 19 years.

Sue has dedicated her career to improving and modernising housing services, driving organisations to challenge their service delivery to meet the changing expectations of customers. Her focus is to ensure that we always demonstrate respect for those we serve and for each other, and that the customer remains central to decision making.

Sue was part of the team which created Stonewater, focusing in particular on the development of customer facing services and tenant scrutiny. Prior to this, her roles included housing consultant for a range of organisations, Managing Director for a rural LSVT and Head of Service in a former coal field regeneration area.

She is a graduate in Economics, a Fellow of the Chartered Institute of Housing and a Member of the Chartered Management Institute. Sue is a trustee for a domestic violence charity.

Patrick Chauvin

Executive Director - Homes

Patrick is a highly experienced property and asset management professional. He has held senior management positions across a range of disciplines within the Housing sector, including Director of Asset Services at Amicus Horizon and Head of Strategic Portfolio at Circle.

He’s a qualified Building Surveyor with extensive experience in housing and construction. His career began in the private practice, working for high profile clients on construction projects.

From there he moved into the housing sector, working on City Challenge in Newham. He then held a number of senior positions within Home Group, one of the largest housing associations in the UK. From there he moved to Amicus Horizon and was part of the Executive Management Team that transformed it into one of the highest performing organisations. He was then appointed to a senior position within Circle Housing as Head of Strategic Portfolio and was subsequently appointed Head of Neighbourhood Planning for Clarion Housing Group, the largest Housing Association in the UK.

Anne Costain

Executive Director - Finance

Anne is a qualified Chartered Accountant and Corporate Treasurer. She has worked in Housing for the past eight years, as Deputy CFO and CFO of Radian Housing Association based near Southampton, and following their merger with Yarlington, as Director of Resources at Thrive Homes in Hemel Hempstead.

Before working in Housing, Anne worked in Manufacturing for a number of organisations, from SME to Fortune 500 and FTSE 250, latterly as Finance Director for De La Rue, in their Currency and Supply Chain Divisions.

David Blower

Executive Director - Corporate Services

David has worked in the industry since 1993 and is passionate about creating high performing cultures where individuals are equipped to succeed. Initially building his career in finance he held a number of senior finance posts before moving into this wider role on the formation of Stonewater in 2015.

He leads a multi-functional team that is driving the business forward across a range of disciplines , including People, Technology, Risk and Assurance, Communications, Strategic Planning, Performance and data.

He is a Chartered Certified Accountant and holds an MBA from Warwick Business School.

Jonathan Layzell

Executive Director - Development

Jonathan has an extensive background in delivering new homes with a particular personal interest in rural housing and the long term sustainability of rural communities.

He is also interested in how Registered Providers can use investment in new homes to support the growth of the construction sector as well as the wider economy. Stonewater’s development programme is strong and ambitious and is among the largest in the sector.

Jonathan is responsible for the strategic delivery of Stonewater’s housing development programmes including the implementation of innovative affordable rental and shared ownership schemes.