You catually need only so much apace as you need to accommodate yourself and family. Thus 100 Sq. Ft should suffice.
In this connection, let me recall a story by Tolstoy. A man ran for hours to get maximum land according to rules of the place. But he fell and died at end of day. He need land only to accomodate in grave.
For living man need a bit land . but now a days alot of acare have been taken for living. and after dieing man need land according to the hight . mostly 6 feet
In this regard I would like to share something which I read quite a long way about Leo Tolstoy and a lady belonging to an aristrocratic family.The lady was eventually successful in taking Tolstoy to her magnificent mansion and showed him all her pride possessions.After it was all over she was keenly expecting Tolstoy to put in a few appreciative words but he kept mum much to the frustration of her.When she finally asked him as to how did Tolstoy feel about her pride possessions, Tolstoy just replied:" I was just thinking about how many things that I can do without".