Although the prevailing wind direction is SS�, the wind direction on the frst and second foors is south. This demonstrates that the original wind direction may be unimportant, because the wind direction within the devel¬opment is shaped by the houses. Of course, this case uses a wind direction that deviates only slightly from the south (no more than 30o). Hf the wind was from the southwest, the scenario could be very different.