I’m not talking about engineer building plan.. what I mean is, make sure you know what items to place in which location before you start building. If you follow Vastu, make sure your design engineer follow Vastu. If you doubt, it’s better to consult other Vastu consultants before you begin your house construction.
Fortunately, when we started our house construction, we had a written contract with our Building Construction contractor. But we ignored all other contractors thinking other contractors will have less work, and we never made a written agreement with other contractors.