Back in 2009 Aurora set an interesting and confusing precedent with bylaw PL09-071 banning the number 4 from street addresses:
The Toronto Star weighed in on that decision here:
Last month Richmond hill, for no logical reason whatsoever, has folowed suit.
The Huffington Post covered the it here: http://www.huffingtonpost.ca/2013/05/31/richmond-hill-bans-number-four-tetraphobia_n_3368213.html
Superstition ain’t the way, no, no, no…