#3. Exhaust Locations.

An obvious point, but often overlooked when designing a house, is how to ventilate the internal rooms. The moist air from your bathroom promotes rot, destroys the insulation and can warp your ceiling panels. In NZ the air has to be exhausted outside. This can be done by ducting through the roof via a pipe with an cowl on the top i.e. (Weiss FV10) or through the soffit or sidewall using a grille set (Weiss HS4201)

The exhaust point should not be close to a window or door where the air might be drawn inside again, nor should it blow over people passing by. Again, the building codes may have some minimum distances here.
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Due to the variation between cities and countries, we have to keep the advice fairly general, and you should check your local requirements.