board and senior team


Board of Management 

Our Management Board is formed of a maximum of twelve members. Skills represented on the Board include finance, housing design and development, risk, housing management, legal, asset management and sustainability. Our Board recognises the importance of robust governance and Members undertake annual appraisals of individual and collective performance. 


Board Members

Paul Calland MICH


Retired Senior Executive

Paul has 42 years’ experience in the social housing sector, most recently Managing Director of South Northhants Homes and Group Director of Assets Grand Union Housing.

Rowan Carstairs

Vice Chair

Consultant and Property entrepreneur

An entrepreneur with a proven skill set and track record in both property and education.
Consulting representative for The National Landlords Association.
Chair Guildford Sunset Homes, Non-Executive Member Riverside Group, Chair Residence Scrutiny Panel Suffolk Housing

Peju Fabunmi

Board Member

Hosuing Development Consultant

Peju has over 20 yrs involvement in the housing sector as a Manager and Consultant with specific experience in planning, property development and acquisitions.
She has worked with several HAs including L&Q, Notting Hill, Threshold, Home Group, Swan, Metropolitan, East Thames Chapter 1 and Hyelm Group.
She is a qualified planner, and holds post graduate diplomas in both Urban Design and Property Development & Planning (RICS accredited). Member of the CIH and has attained full Chartered Status (experienced route) in 2018. She is also a Member of the Association of Project Managers.

Bob Hughes

Board Member

Retired Senior Executive

A qualified housing professional with experience of Chair and NED roles in local and national Registered Providers. Chair of Mole Valley Housing Association, Board Member of Circle Housing. Former Head of Quality and Improvement and Business Improvement Director with Amicus Horizon Housing Group, and Assistant Director of Housing with South London Family Housing Association.


Martin Large

Board Member 

Retired CEO

CEO to Dec 15 of GLE Group, a leading SME focused property regeneration and business services organisation. NED at Hexagon Housing Association and its Lead Board Member for Value for Money.

Louisa Martin

Board Member

Executive Director & Board Advisor

Louisa is an experienced Capital Markets specialist with knowledge of debt and equity markets, economic theory, and trading/ investing/ asset management theory and practice.
She has a background in finance, risk and regulatory frameworks, and has held senior roles and Board advisor in consumer facing, heavily regulated financial and property industries.
She holds over 15 years’ experience in branding, developing and launching SMEs. She is a Trustee of CAB Brent and a Fellow of the RSA. She was previously a Member of the Toronto Real Estate Board.

Gordon Mattocks CIPFA

Board Member 

Retired Accountant

40 years’ experience in public sector finance and audit. Worked in new towns, local government, higher education and latterly for 15 years in social housing. Member of various boards/ audit/ risk/ finance committees, including currently Board member of Inquilab and Ekaya housing associations.

Audit committee member of the Chartered Institute of Public Finance and Accountancy (CIPFA) and member of the technical Audit Panel of CIPFA, representing the housing sector.

Julia Tyson

Board Member

Executive Director

Julia holds 30 years of large corporate experience at Executive Director level with expertise in HR, strategy and Governance. She's most recently a HR and Communications Director with LV Group and previously Group HR Director with Wates Group Ltd.
Also previously was appointed as independent member of Wates Giving from inception to develop strategy, governance, compliance and financial control.

Jane Vessey CFA

Board Member

Fund Manager and Investment Director

Jane is qualified as a CFA (Chartered Financial Analyst), and has 18 yrs experience as fund manager and investment director in Europe and Asia.
She has a strong technical background with experience in both developed and emerging markets. Non-executive experience in fund management and voluntary sectors and a wide knowledge of investment industry, and Lectures on investment on Masters courses at leading business schools.
She is currently Owner and MD of Wentworth Advisors; NED and Chair of Risk Committee at Margetts Fund Management; and Governor of Tolworth Girls’ School & 6th form. She previously served on Board and Finance Committee with Greenoak, NED and Member of Risk and Audit committee at Inquilab HA, Board member of CFA UK in London.



Diana Kingdon FCIS MBA


Chief Executive/Secretary

Diana has over 30 years’ experience in senior management roles. She has considerable experience of property management and support services, and strategic planning, financial and company secretarial matters. In her current role, she is responsible for working with Greenoak’s Board to set the strategic direction of the organisation.

Adrian Buffery MSc


Director of Development

Adrian is responsible for leading on new business and development and oversees our asset management re-investment. He has extensive experience in housing development and planning in Housing Associations and Local Authorities. He is experienced in policy and service delivery in a variety of voluntary and public bodies.

Adrian’s work at Greenoak has sought to ensure that our homes are built to meet priority needs and maintained to a high quality standard including energy efficiency. He leads on new business ventures and partnerships and provides technical support to our asset management team.


Senior Staff Team

Berni Rigby

Senior Staff Team


Berni is a Financial and Management Accountant. His current role is Finance Manager for Greenoak with overall responsibility for effective financial services and maintaining the Association’s financial records and IT system. He is responsible for two finance and rent officers. Berni has had over 30 years’ accountancy experience including 20 in the NHS.

Karen Novell MRICS

Senior Staff Team

Technical Services Manager

Karen is responsible for all day to day, planned and cyclical, refurbishment of Greenoak’s properties in management. She also manages Greenoak’s Direct Labour team of four multi-skilled operatives. They cover most response repairs, voids, and replacement of kitchens and bathrooms, and achieve very high satisfaction feedback from tenants.

Karen is a Chartered Surveyor with over 30 years’ experience in social housing. She has worked mainly dealing with repairs and maintenance, planned works and new build but has also worked in housing management so has a good understanding of all aspects in dealing with staff and tenants.

Stephanie Harris

Senior Staff Team

Housing and Support Manager

Stephanie is a highly experienced manager, she has worked in her current role for over 8 years. Her team manages and provides housing management and support services to residents at 6 schemes for older people in Woking. Stephanie and her team support tenants to help them remain independent. She is also responsible for managing leasehold retirement schemes in Eastbourne, Hastings, a small rural over 60s rented scheme in Loxwood, Sussex and a scheme of 24 properties for the over 60’s in Oxted Surrey.