I don't know if there's a standard definition for "commie block", but I've always understood it to imply a bunch of things:
- Building is rectangular; tall, wide, but not deep. Based around a long, straight hallway with elevators in the middle
- There's no variation in unit sizes or layouts; maybe there are 1-br and 2-br units but all of the 1-br units are identical to one another, etc (to me this is what makes it a "commie" block - all of the units are ostensibly "equal")
- Views are incidental; site design (including the siting of similar buildings nearby) is based entirely around perceived efficiency of land-use and simplifying the design process; views from within units are fundamentally not treated as an asset
- Aesthetics are not taken into account. The building is not really designed so much as engineered. There are effectively no decorative elements. The building is maintained to the minimum necessary to avoid (or recover from) catastrophic failure, cosmetic damages are not considered problems and there is little to no landscaping. Everything about the building's design and construction is based around maximizing the amount of leasable space(s) while minimizing the cost to the builder/owner
- Typically single-use (residential)
- Unlikely to have any amenities beyond parking and maybe laundry
There's no real definition but that's how I think of it. A quintessential example I'd point to within Canada is Toronto's
St. James Town. Those are
definitely commie blocks IMO. When I think of commie blocks I'm thinking of specifically those types of buildings.