I feel, the Vaasthu may have to be changed in the same place because of the changes in the life styles of the people.
The Vaasthu of East Coast says, have the house entrance doors in the North East side. In villages and small towns, many people always open their main doors. If they have the entrance doors in the North East side, then there would be more air flow in their house. In big towns and cities, almost everyone closes their main doors. By having this rule, essentially, the people in the cities and big towns are not getting any air flow at all. Instead, if they construct the houses in such a way that, their balcony or other windows/doors, which they usually open is in North East side, then there would be more air flow.
It may be time to revise all the rules of the Vaasthu and apply the real reasons rather than blindly following.