Stereo and head tracking are considered as distance perception cues in virtual environment. Several studies have investigated their influence on several tasks. Results were different among studies. In this paper, we conducted a complete experiment investigating the influence of the stereo and head tracking in the specific context of virtual visits of houses during architectural project review with clients. We manipulated the stereo and head tracking in four conditions and we examined effects of the two factors on distance perception (room dimensions, habitability, etc.), task difficulty, presence and simulator sickness. Results reveal a significant effect of the stereo on the estimation of the habitability, the dimensions of the rooms and task difficulty. However, the effect of stereo and head tracking was not significant on the presence and simulator sickness.