Portico (poomukham) is a place which spreads happiness in the house. The position of the portico (poomukham) can be in the eastern or northern direction of the house. The foundation of it in these sides should be a bit higher than that of the house. It can be built length wise in the north eastern direction also.
According to vastu shastra, the height of the portico built on the north and eastern side should be lesser than that of other rooms in the house. vastu shastra does not allow porticos to be built in round shape. It should be always be in square shape. The seats should be arranged in the southern or western side so that the guests be able to sit facing the north or east direction. Plants can be grown in porticos, but we should avoid growing creepers or thorny plants in porticos. Foot wear should always be kept in the north western side of the portico. A porticois the place which opens the outside world from a house.