South facing houses good plans given below;
1) The plot size is 40 * 40 feet than given plan is most suitable.
Above drawing map show the plan of your house.
2) According to Vastu Shashtra North and South direction and should be longer than West to East. Main entrance is between South to South South East direction. Pooja room is should be North East corner and other directions are given below;
Direction ----- Room / Hall / Toilet
North East ----- Pooja room
South East ----- Kitchen room
Bedroom ----- South, North, North North West and North North East.
Drawing room ----- East North East
Toilet ----- South South East.