Major Principles of Vastu-Shastra of Building Constructions are :-
1.Existence of roads on the northern or eastern side of the house improves the health and progress of the members of the house. If a house has road on the 3 sides, its inhabitants suffer tension and tension related problems.
2. When the digging is happening to lay the foundation, make sure that you start from the east, go to the north, then to the west, and lastly, southwest.
3. A house having massive main door gives a lot of unsavory events and members residing suffer health problems.
4. Wall of house should have soothing and soft colors on walls as this gives a tension free atmosphere. Deep yellow, red or orange colored walls give irritation to the occupants.
5. All water related appliances or resources of the house should be placed on north east area. This provides prosperity.
6. A well or a tube well should never be provide on the southeast end of the house. A well or tube well at center of the house brings good luck to its head.
7. Presence of plants of Tulsi, Banana, Champa, Ashoka, Aawla outside the house keeps inhabitants healthy, happy and peaceful.