There are several factors that are considered by Vastu Shastra to decide the quality of the plot. Geographical surroundings, the level of the land and the roads around the plot are the dynamics that help in determining the quality of a particular land. Depending on this factor plots are divided into 3 categories by Vastu Shastra.

First Grade Plots
The first grade plots are the best plots that one can own. The main requirement to be the best plot is to have roads on all its four sides. This plot is more beneficial if it is square in shape or if rectangular in the ratio of 1:2. They also have slope on the eastern and the northern sides. on the southern and the western sides these plots may also have hills, mountains or tall buildings. Such plots are also known as Bramha Stavam. In case such lands have roads on all the four sides extending towards the North-East, the East or the North it will definitely generate more positive energy.

The plot where the road on the Western side is higher than those on the Eastern and the Northern sides is considered auspicious. According to Vastu Shastra plots with the VithiShula or the approach road on the east and the northern entrance is extended on the north-east side are also termed as first grade plots.

Besides the roads on Eastern and the Northern side a pond, lake or river on the Eastern or the Northern sides are also acceptable in such plots.

Among the roads on the Northern and the Western side, the latter in a first grade plot will be on a higher plane. Thus the west of the plot will be an auspicious approach road. on the other hand if there is a downward slope on the east or the north, the plot can have its approach road from either sides. In these plots the water tank is located in the north direction.

Second Grade Plots
1) The plots having lower roads on the east that of the west are termed as second grade plots. These plots have their slopes or a river on the East.

2) As far as the roads on the north and the south sides are considered, the former will be on a lower plane. Mostly the slope in this plots are on the north. Vastu Shastra spells out that such plots may also have high mountains, hills or tall buildings on the their south direction.
3) Plots with only one road on the East or the North side and a slope on the North - East side are also the prerequisites for the second grade plots.
4) Here the road on the western side is a bit lower than the roads on the East, the West and the North sides.

Third Grade Plots
1) Plot, with a road on the western side and a downward slope on the eastern side, is considered a third grade plot.

2) They can also have a downward slope on the east road and mountains or tall building on the north, south or west.

3) Third grade plots might also have tall buildings or mountains on the eastern side while there are roads on the north, the south and the west sides.

4) The plots having roads on the northern and southern sides are also third grade plots. In their northern sides there may be buildings or other geographical landforms.

Fourth Grade Plots
These kinds of plots can have any one of the following features:-
1) The plot has only one road on the South with slope in the Southern or the Western side.

2) The roads are on the South and the East with a downward slope on the South with tall buildings, hills or mountains on East, West and North.

3) The plots can also have roads on North and South directions and the entire downward slope in the South - West corner. A river or deep valley in the South are also common to such plots of land.

4) Roads can also be in East, North or South directions. the North -East the South - East or the South-West corner can either have an oblique cut or the South-East or the South-West Corner can be extended with a slope on the South side.