materials, construction materials, and house form
In case you were wondering if its true that your building materials go a long way to determining a building's shape, I give you the following:
The 1980's historical pastiche of Po-Mo as rendered in the very appropriate foam blocks (not so far from the EIFS of the time)
the large, rambling suburban "Western" McMansion that pervades the front range here in Colorado, as executed in, of course, Lincoln Logs and their associated plastic cousins
and of course the Flemish, stacked masonry house with Dutch tulip garden out front as rendered in Legos.
All of the above design and construction credited to M. Gerwing Architect's youngest studio assistants.