Actually, if you have 100 sq.m. plot of land, what can you build?
Ten steps forvard, ten steps left or right... But, you want good view to neighbours and couple of sq. meters for plants. It is not a joke indeed! I saw same "for sale" plot near Moscow. And I created this idea as a good exercise for me as architect! Best view to neighbours from above, and, if you turn on your imagination, you can find place for car in corner.