Here's a really good explanation of what a Denver Square is and how it came about. Thanks to 5280 Magazine…

 

Drive around town and you can’t miss ’em. Denverites like to call the two-story, boxy, brick houses that line the streets of the Mile High City’s oldest neighborhoods “Denver Squares,” as if Denver were home to the design, but this simple yet elegant style is actually the American Foursquare. The home design was already popular in other parts of the country (usually made of wood) when Denver’s Grodavent Brothers published a plan for a brick version in 1895. Locals were so keen on the tweaked design that the Denver Square began popping up all over town—and hundreds are still around today. Here, Jim Bershof of Denver’s OZ Architecture gives us a tour of this local architectural staple.