In reply to Brian Fahs.

Ah, the trials of having an audience filled with engineers! Of course you are correct, I should have said "and matching diagonals to ensure squareness", and "square" in the building sense means that is has perpendicular angles. So, yes, a rectangle would also be "square", but is not "a square". Heh.

Though, ironically, the plan IS a bunch of squares connected to a larger central square. Not a rectangle (or parallelogram) in the lot. :)