The topography of a place, natural disasters, climate, constructibility and health concerns, are all linked to the vastu of a particular place. The surrounding area and the plots itself; both are important factors if you want to maintain a positive energy inside the house.
Proper site preparation must be done before construction. If the plot has a large surface area, then divide the whole area into four parts or khandas. The south-west part will be the devakhanda, north-west part will be the vaayukhanda, south-east part will be the agnikhanda and the north-east part will be the manushyakhanda. On the other hand if the plot you buy is small in size, then the square piece of land right in the middle of the plot must be the location of the house. In the former case, of the four parts, only the manushyakhanda and devakhanda are fit for habitation. A house should never be build on the agnikhanda. As for the vaayukhanda, build a house on this part only in the absence of an alternative.
The best shapes for plots are squares. A plot of any other shape can easily be turned into a square or rectangular plot simply by building a fence/wall around it. East and north sides of the plot should be left open, while only a very small amount of open space is required on the south and west sides. Also the flow of rainwater on this plot should be restricted to the east, north or the north-east directions.
Level of land, direction of wind flow, trees in the area – are all factors that should be kept in mind while selecting plots. If old buildings are situated in the area, then you can either demolish the building or renovate it after consulting a vaastu expert. High ground is always best suited for house construction. Reducing the elevation will result in reduced airflow and light penetration inside the finished structure.
The strength and tilt of the land should also be taken into consideration. A house should be constructed keeping in mind the constitution of the land. For example if the house is build on leveled ground, the place will lose its characteristic beauty. The pathway to the house is also very important. Take special care to build wide and open pathways. Keeping all this in mind during the construction of the house will ensure that your dream home will also bring you joy and prosperity.