In villages, big plots have a goshala and a small house. Is zoning done for the built area or for the whole plot?

Both, for different purposes. The whole plot inside the boundary wall is used for the boundary gate and for placing parking, servant quarters, pet shelters and guard rooms, while the house is zoned on its constructed area alone, which decides its main door and rooms. If the house is built almost up to the boundary, leaving about 3 ft, take the whole plot; if 15 to 20 ft is left around a 30 by 50 ft house, zone the 30 by 50 ft area for the house, otherwise half of its zones are lost.

Yes, they fall outside the building in that open margin, and that is exactly the logic of keeping the Pishach bhoomi open. If the devtas were marked on the built part alone, you would again ask for its Pishach bhoomi to be left empty, which is wrong. Things placed on the walls of the built house fall in the Manushya bhoomi.

Take the centre of the constructed area and mark the pads from it; part of the paishachik ring may fall just outside the house. For a new building, do the zoning of the whole plot for the boundary wall gate, and the zoning of the constructed area to mark E3 or E4 for the main door of the house.

Zone the complete plot. Almost the whole plot is in use and even the small strips are being used, so the full plot is taken for zoning and for the degree.

In the Pishach bhoomi, the outermost band. The 32 outer devta lines are drawn only within the Pishach bhoomi, while the 12 inner devtas sit in the combined Manushya and Dev band and Brahma in the centre.

North-East, South-East, South-West and North-West fall exactly 45 degrees from the main directions. Where they fall in your own flat becomes clear once you do the zoning.