Executive Team


The day to day running of Hexagon is delegated to its Executive Team which comprises the Chief Executive and four Directors who work alongside him. The Executive Team reports directly to the Board of Management, the group of people with ultimate responsibility for the running of the organisation.

The Executive Team

Tom McCormack : Chief Executive

Tom McCormack

Chief Executive

He played a major role in the implementation of the new merged Sanctuary/Spiral organisation, initially as a Regional Director.  He subsequently held several posts, including Divisional Director – London and Commercial Director. In the latter role, he played a major part in the implementation of a merger with Housemartin Housing Association in Hull. He has sat on two Housing Association Boards’ one in his capacity of a Housing Corporation appointee for a troubled Association that resolved its difficulties by merging with another Housing Association. He holds a BA(Hons) Degree and a Masters in City Planning (MCP) degree.

Izzet Dizdar : Finance & IT Director

Izzet Dizdar

Finance & IT Director

Izzet joined Hexagon Housing Association in October 2020.  He has responsibility for delivering a successful finance, treasury and IT functions.  He is a fellow Chartered Certified Accountant.

Izzet has been in social housing for over 20 years holding senior management as well as non-executive board management roles.  He has worked in private and public sectors and has extensive experience of finance, treasury, financial modelling and compliance.  Prior to joining Hexagon, Izzet worked as Head of Finance & Business Planning at B3Living.  More recently he worked at M&G Investments Limited and Standard & Poor’s Credit Rating Agency as Associate Director, carrying out due diligence and credit rating analysis on entities seeking funding from capital markets.

Andrew Green : Housing Services Director

Andrew Green

Housing Services Director

Andrew is our Housing Services Director and joined Hexagon in May 2017. He leads our Housing and Supported Housing teams, and our Resident Involvement and Community Investment, and Care Services.

Andrew has worked in Social Housing, principally in London for over 20 years. Having originally trained as a Quantity Surveyor, Andrew developed a passion for Housing Management while working as a Trainee at Airways Housing Society in the early 1990’s. His most recent role before joining Hexagon was with Viridian Housing as Assistant Director of Housing and prior to that had been Managing Director at Peabody Gallions. These roles have prepared him well for joining the Directors Group here with his track record of leading large teams in delivering strong performance across a wide range of services.

Kerry Heath : Development and Sales Director

Kerry Heath

Development and Sales Director

Kerry is responsible for overseeing the successful delivery of Hexagon’s varied development programme in terms of cost, quality and time. Kerry has a degree in Quantity Surveying and as a graduate, worked for a cost consultancy/ surveying firm, on behalf of housing associations located in the North and East of London.  This is where her interest in the development work of Housing Associations came about.  After 2 years she went to work for South London Family HA as a Development Officer, working on development schemes based in the southern counties. Kerry holds an MA in Housing Studies and is an RICS Chartered Surveyor as well as a Fellow Member of the Chartered Institute of Housing.

Charles Mtakati : Property Services Director

Charles Mtakati

Property Services Director

Charles is our Property Services Director and joined Hexagon in January 2020. He is responsible for our repairs service, asset management, investment in our existing portfolio and the Customer Service Centre. Charles is also responsible for overseeing Hexagon’s Sustainability Strategy.

Prior or joining Hexagon, Charles was Operations Director at Soho HA and before that he held senior management positions at Places for People, Network Homes and L&Q. Charles has varied experience in housing, which has included asset management, property management, business transformation, maintenance services and placemaking.

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Hexagon Housing Association