[1] Tunley joined Milton Keynes Development Corporation in 1972 and worked on several projects in the northern side including Neath Hill,[2] Coffridge Close in Stony Stratford[3] and the Agora in Wolverton.
After leaving the development corporation, he formed a new practice with MKDC colleague Trevor Denton in the early 1980s.
Tunley was born in the Sudan and schooled at Comboni College in Khartoum from 1947.
Tunley died at University Hospital Coventry on 30 October 2012, following an accident at an airfield in Hinton-in-the-Hedges.
He was cremated at Crownhill Crematorium in Milton Keynes on 19 November 2012.