Not really… I mean, take my office for example… We took up an entire floor of a building, but only had 2 bathrooms, 2 sinks, no showers, no bathtubs, 1 dishwasher, 1 full size fridge and 1 mini fridge.
Technically the space could be carved up into 6 or so apartments, but it would have to be completely re-worked.
And that doesn’t take into account things like having to remove the false ceiling. Can’t have someone breaking into your space because they climbed over a wall.