The physical office environment has been shown to be associated with indicators of both health and performance. This study focuses on how memory performance is affected in normal working conditions compared to a quiet baseline (with low amount irrelevant stimuli) in different office types, including cell offices, small open-plan offices, medium-sized open-plan offices and large open-plan offices. The results showed that the drop in performance from the quiet baseline to normal working conditions was higher in larger, compared to smaller, open-plan offices. However, contrary to our hypothesis we found that cell offices might have negative effects on performance comparable to those of large open-plan offices. These results indicate that employees in small open-plan offices, in comparison to large, have better possibilities to conduct cognitively demanding tasks and that cell offices might not be as advantageous as previously thought.