Sheila O’Donnell and John Tuomey established O’Donnell + Tuomey in 1988. The practice has developed an international reputation for cultural, social and educational buildings including the Irish Film Centre, Ranelagh School, Letterfrack Furniture College, Glucksman Gallery Cork, Timberyard Social Housing, the Lyric Theatre in Belfast and the Saw Swee Hock Student Centre at the LSE.

They are currently engaged in the design of university buildings, schools, housing and mixed use buildings in Ireland and Europe. They have been involved in urban design projects including the Temple Bar regeneration in Dublin and the Zuid Poort masterplan in Delft. Both lecture in University College Dublin and have taught at a number of schools of architecture in the UK and USA including AA, Cambridge, Princeton and Harvard.

Their work has been widely published and exhibited and has received many national and international awards.