How much should be the height of plinth level of building from natural ground or road?

The height is 300mm to 400mm

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The plinth height is in between 300mm – 450 mm from ground level.  It is recommended that the minimum plinth height of 150 mm is adopted from the top of the road. 

 

For more details follow the link : Plinth level , Window sill level , BGL and NGL

The height of plinth level should be Max 3 feet.

It s more than90cm and when the highet of plinth is more it s Better

12 inches.

normaly15 cm's above the surrounding grounds, but it completely depends on the situation and infrastructural plan, you don't want water in your building.

20 Cm

Plinth level means naturaly ground floor level of building.The height of plinth level of building from natural ground or road are3 feet.