An evaluation project was carried out to consider the factors that influence university teachers engagement with an institutional professional development scheme. Data was collected via an online questionnaire followed up by semi-structured interviews. This paper will consider those factors that encourage and act as barriers to engagement. The influence of six cross-thematic factors: Time; Institution; Culture; Management; Individual and Mentorship, on engagement will form the focus of the discussion. The report concludes that the key factor influencing engagement was the presence of intrinsic motivation. Extrinsic motivation was a less effective motivator for HE teachers lacking intrinsic motivation.