About Us

We draw on our diverse experiences to bring fresh perspective to problems and find sustainable solutions for our investors, our council partners and the communities we ultimately support.

The Team

Steve Thavam KeyStone Founder and CEO

Steve Thavam

Founder & CEO

Steve has been investing in residential housing for over 20 years, providing safe and affordable homes to families whose needs are not met in the open market. He has a longstanding commitment to social causes and is passionate about using his expertise to tackle the UK’s housing crisis, while creating genuine growth opportunities for investors.

He’s also an experienced technology consultant, and has worked with CIOs and senior executives to deliver complex digital transformation programmes across a number of large, multinational firms – including Accenture, BP and BAE Systems. Steve holds a Masters Degree in Chemical Engineering and French from Imperial College, London.

Neil Warrender


Neil brings extensive experience from banking and compliance sectors to KeyStone. He has run his own business for a number of years, and is responsible for ensuring KeyStone’s full financial and regulatory compliance.

Formerly Director of Compliance and Accounts at RAB Capital plc, Neil was responsible for compliance, management and statutory accounts and for managing new fund launches. In 2006, Neil was chosen by AIMA to be one of 15 experts advising the European Commission on hedge funds and his roles include a spell on a supervision team with the FCA.

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Tarn Lamb

Social Impact

Tarn will help to expand KeyStone’s work to Cornwall and other suitable locations around the country.

Tarn is currently the CEO at Cornwall Neighbourhoods for Change where she has been instrumental in developing and delivering a range of essential services to the local community including employment and education. She has previously held a number of roles including Head of Finance, Fundraising and ICT at Bromley by Bow Centre, and Head of Equalities and Social Inclusion at London East TEC. Tarn is a member of the England Committee for The National Lottery Community Fund and holds a Law Degree from Queen Mary, University of London.

Jayan Jegarajan


Jayan joined KeyStone as an intern through the Government Kickstart scheme in June 2021. Jayan quickly demonstrated excellent technical skills and for a period of time supported all aspects of website changes and updates. Jayan’s core interest, however, is in Finance and it is in this field that he is looking to specialise.

Jayan has recently passed all his CIMA exams and is now gaining the practical experience to complete this qualification. He is actively involved in all aspects of financial management for KeyStone including generating annual accounts and financial modelling.

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Francesca Ferris-Ockwell


Until 2020 Fran was CEO of a Sheffield housing charity, Nomad Opening Doors where she led the organisation from a position of vulnerability and threatened closure to financial resilience and growth. During her tenure, she founded Nomad’s trading arm, Four Trees Lettings. Four Trees provides professional management services in the private rented sector, generating revenue for the charity and increasing the quality, availability and affordability of housing.

Fran has spent the last two years supporting purpose-driven organisations as a consultant and advisor, focusing on fundraising, strategic development, and leadership and culture. She is also the co-founder of tech-for-good startup, Accessible Communications Limited, the company behind Family Phone. Fran is a voluntary director of Sheffield Social Enterprise Network. 

The Advisory Board

Carsten Moenning KeyStone Technology

Carsten Moenning


Our tech advisor, Carsten, is equally passionate about social causes and using his skills to transform the lives of others. Carsten has been in the IT consulting, media and service industries working on technology innovation ranging from hands-on platform implementations to new tech evangelisation and senior executive advisory for around 20 years.

He has lectured on software engineering with a keen interest on data-driven and Blockchain-enabled tech. He holds a Ph.D. Computer Science and a M.Phil. Economics degree, both of the University of Cambridge, with a focus on Computer Graphics/Computer Vision and Econometrics.

Charlie Oppenheim


Charlie’s career so far has spanned corporate finance, management consulting, principal investment and the management of a hospitality business.

Charlie is the managing director at Parklife, a company he founded as a specialist operator of cafés in green spaces, focused on the London market.

Charlie has deep business knowledge across a range of sectors and a strong understanding of what drives value both at the strategic and tactical levels. He will support KeyStone’s fundraising drive as well as the development of relationships with local authorities and charities.

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Nigel Walley


Nigel is a media and technology industry profession with a significant experience in emerging digital media technologies. Over the last ten years he has used his experience built in the early years of internet development to launch a tech thinktank – Decipher, the media R&D facility iBurbia (in London, Manchester and Glasgow) and the consumer focussed digital services company Chimni.