Vastu for Portico means a Protruded portion from the building is called balcony. It can be constructed in any direction but it is auspicious to construct it from one to another corner. A significant vaastu defect is seen in constructing the balcony in east or north direction in small portion. This is wrong in east of the northeast zone, east of the southeast zone, north of the northeast zone or north of the northwest zone. If the balcony is in small portion of south or west direction then it is not a vaastu defect.
But if a balcony is constructed in the south direction then one is essential in north and if a balcony is constructed in the west direction then one is essential in east direction. Balconies are as important to the house as the open areas in the east and north. Sky scrapers, apartments are mushrooming in this jet speed age. Thousands and lacks of families live in the apartments; it is need to the residents to have open spaces in balconies in the east and north. In this back ground many people construct balconies at their whim and pleasure by cutting them and extending them. But cutting in a haphazard manner results in defective vastu which brings in bad luck.
To be frank balconies should not have decrease or cut. But it should not be cut at any part at the east, north, and northeast sides. North and East balconies are wider than the West and South balconies, then only the building will have more open space at North and East sides.