What will it sell for: misallocated shares edition

Nothing from the peanut gallery? Is there any way that the corporation doesn't end up owning this in 20 years?

What in the world is happening out on that 'side terrace' that you need a 'mud room'?

Cant respond cause I cant figure it out.
To add to the confusion, previous listing, pre reno has it at 1100 square feet and less 1 backyard. It is now an extra floor (or basement) of additional 900 sq ft plus an additional yard.
This might have provided the answer except the '11 sale listing maintenance is already obscenely high and seemingly normal inflation from 2011.
So this pretty much eliminates a typo and/or additional shares for the extra floor and yard now in the floorplan as an explanation.
Maybe a much previous owner paid a ransom for the yard(s) in shares.
Instead of laying out cash, eating more shares which in effect reduced the rest of the shareholder's costs.
There has to be more to this story.
You'll only get the answer engaging the sales broker to find out.

I assume that this was once a Dr. office or other commercial unit. The commercial units frequently are over-allocated shares/common interest.

Sport that is an excellent possibilty

Professional space a possibility, commercial not.