Data to accompany manuscript entitled: "Room to breathe: Using adaptive architecture to examine the relationship between alexithymia and interoception" by Haneen Abdul Hamid (School of Psychology, University of Nottingham, United Kingdom), Nils Jäger (Department of Architecture and Built Environment, University of Nottingham, United Kingdom), Holger Schnädelbach (Holger Schnädelbach Adaptive Architecture [HSAA], Berlin, Germany) and Alastair D. Smith (School of Psychology, University of Plymouth, United Kingdom). The dataset comprises individual anonymised log files for each participant that completed the full experiment. File names refer to the group that participants belonged to (low, medium, high) and the order in which conditions were administered (A refers to the 2D condition and B refers to the ExoBuilding condition). An SPSS file includes processed measures of central tendency, along with TAS-20 and AQ scores. A full description of each measure, and associated analyses, is provided in the report, which is available on request from Alastair Smith (firstname.lastname@example.org) or Haneen Abdul Hamid (email@example.com).