This photo of a storefront in downtown Toronto shows completely dead space. The chainlink fencing was recently installed making it newly dead space. I’m sure there’s an urban planning term for this type of situation.
Since the coincidence of Covid-19 and a huge run up in local housing costs, Toronto’s city centre has entered a whole new era of “houselessness” and street life. Basically, Toronto now has an “underclass” in the style of a USA city. This fact is obscured somewhat by a policy of hoteling the houseless.
It’s safe to assume that this fencing is a response to the new social situation. This “Subway” location happens to be across the street from one of the hotels functioning as temporary housing for a bunch of people on the wrong end of things.
Presumably the property owner is entitled to fence in his or her property even if it’s effectively been part of the sidewalk over the long term and even if there are no entrances (or anything else) to enclose.
This particular example of dead space really draws the eye as it’s well lit, in a high trafficked area and features a window into a busy retail location. It’s like a glowing cube.