The current standard adaptive control algorithm was developed twenty years ago from field studies in 26 buildings across Europe. In the UK, the correlation between comfort temperature and measures of outside temperature was around 0.2. In this paper, we review the results of 1,081 surveys from 84 participants carried out in two buildings in the UK between 2017 and 2018. Results show significant but very low relationships between comfort temperature and measures of outside temperature. While the buildings were in free-running mode, participants exposed to similar environmental conditions felt consistently different. Some participants reported felling cold and other hot. These results lead to the assumption that sets of personal algorithms should be developed to control localised solutions.