Please do not let folks set rules demanding one architectural style for an entire street. Diversity should be the name of the game. I thoroughly enjoyed seeing places from different decades co-mingling along 15th street. I absolutely hate seeing places where all strip malls and conveniences stores look exactly the same. Nothing iconic is made without imagination. Places such as H&W Drug (with it's arched covered front walkway) and Moon Winx (what an awesome sign!) could not be built with the type of strict rules popular in some places in effect.
A bunch of square brick buildings all landscaped the same is not beautifying, its boring and smacks of forced conformity.