Which is no wonder. If you can’t exactly assume a great love of trees, then the typical buyer of such a plot is rather someone who has to watch every euro and is just glad to get a plot at all. But this person is not one who would then put up a perfectly fitting architect’s palace there (i.e., can afford to pay for it). A vicious circle.
How do you come to the assumption that we have to watch every euro? Because of the planned granny flat? Regardless, that is of course highly legitimate. We earned the money, didn’t inherit it or anything...