He is to take on the role of Chief Executive at the Chartered Insurance Institute.
Alan has been RIBA Chief Executive since February 2016 and was previously Interim Chief Operating Officer.
Under Alan's leadership, the RIBA has begun a comprehensive transformation programme including a governance and constitution overhaul, staff restructure, property review, and investment in technology and international support – all focussed on modernising the RIBA and improving services and value for members wherever they live or work.
Alan has been an influential representative for the RIBA and the architecture profession with UK Government, leading on issues including international trade, climate action and Brexit negotiations, and on key panels including the Professional Business Services Council, the Creative Industries Council and the Creative Industries Trade and Investment Board.
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Alan led the most significant financial transaction of RIBA's history: the agreement of a joint venture and subsequent sale of RIBA's commercial subsidiary, RIBA Enterprises/NBS, enabling the organisation to establish a significant investment fund for sustainable growth in perpetuity.
Alan will leave the RIBA on 31 July 2022 and the process to recruit his successor is underway.
Mr Vallance, said: "After six great years it has been a difficult decision to move on from an organisation and team I care so much about, but it is the right time for the RIBA and for myself to take this step.
"It has been a privilege and honour to represent this world-class organisation and profession at the highest levels, globally.
"My sincere thanks to everyone who I have had the pleasure of working with.
"The RIBA is an incredible organisation – a force for good thanks to its impressive network of trustees, volunteers, partners and exceptional staff – and I am proud of our many collective achievements during my time at the helm."
