Buildings should never be as far as possible Square or Rectangular.
To have one open courtyard in the centre is advisable.
Entrance portico, entrance lobby, pooja room etc., should be far as possible in North-East zone.
When entrance from North-East is not possible then it can be in the favorable directions like South South-East and West North-West.
Bathroom where only bathing is takes place can be in East or between East and North-East.