Whereas virtual reality has proven some potential for visual urban landscape assessment, we raise similar questions about multisensory evaluation. Urban perception is complex and putting aside sensory interactions biases the evaluation of future projects. We attempt more particularly to propose several solutions to integrate microclimatic ambiances in virtual environment evaluations. These propositions rely on a new concept of realism: perceptual fidelity. It consists in provoking the same perceptual effect as in reality without try to reproduce physical causes.