Welp, I've discovered that this task is considerably more challenging than I initially thought it would be! It's frustrating how the paths don't quite line up with the buildings, even if you align it to the same grid. One side is always a little further away, leaving a thin strip of green between the curb and the road. Of course you can niggle the road over by splitting half the group but then you get axis fighting.
I might just do a carpark without the road. Same challenge but less intense to work with.