Will have to select the facade likewise as well.
If you do find that you will have too many shading issues from the north you could try a design like this, with a central spine of clerestory windows (note: this house probably doesn't have those windows, but you can get an idea of the look).
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If you did go down this route, there are some problems with clerestory windows. You'll need cathedral ceilings (at least on the section with the clerestory windows), this has some disadvantages. High ceilings are bright & airy, but can increase heating costs. Construction costs can be increased, particularly if you use something like SIP's (structural insulated panels). Insulation levels must be good, as it's nearly impossible to increase this at a later date, as there's no roof space.
Note also the long narrow windows, that Saint Mike mentioned. Will cut down on afternoon sunshine, & increase privacy. But the closer the window sills are to the ground, the earlier they will receive sunshine, although in any case eaves aren't too affective for western sunshine.