the west end used to be single-family houses; now, with all of the development, it's turned into condo canyon
a neighborhood made up mostly or entirely of high-rise residential buildings, so called because the buildings along both sides of a major street resemble the walls of a canyon
"the west end used to be single-family houses; now, with all of the development, it's turned into condo canyon" What is the definition of "condo canyon"?