[1][2] His thesis project, Zone – A Sustainable City Region, was co-authored with Andrew Derbyshire and John Voelcker.
[3] Crooke and Turner persuaded the mayor to finance a scheme to support homeless residents to build their own homes.
[3] As supervising architect Crooke oversaw a team of agricultural students, foremen and masons assisting residents in the construction.
[2][1] In the 1960s Crooke taught in Sudan at the University of Khartoum before moving to Ibadan, Nigeria and working as a consultant for the International Labour Organisation.
[2] Crooke later taught at the Development Planning Unit at University College London and the Institute for Housing Studies in Rotterdam.