I think these could be used to add extra density to an area where space is already limited. For example for an existing house, this type of design could add two more laneway units in a very small space where a conventional design won’t fit, or on a lot where there still exists some space beside a single detached house.

I think that cities requiring parking spots for laneways and basement suites needs to go away as well. Not nearly as many people driving now. Or maybe not required if transit is less than 15 min walk away.