Johanna Roethe read History of Art and Architecture at the Georg-August-Universität, Göttingen, and at Trinity College, Dublin. She subsequently completed a Masters degree in the Conservation of Historic Buildings at the University of Bath.
She has worked for the Church of England, English Heritage and the RIBA Drawings Collection, gaining experience with a range of building types, as well as in different aspects of building conservation and historical research. Before joining AHP she worked as a freelance architectural historian.