barfield has served as an awards assessor for riba and the [[civic trust (england)|civic trust) and judges architectural competitions.she lectures at conferences and universities, advises for the interdisciplinary design for the built environment masters course at [[university of cambridge|cambridge university]], and serves as a governor at [[godolphin and latymer school|godolphin & latymer school]] for girls. she previously served as vice president of the [[architectural association school of architecture]].