According to Vastu shastra, if there isn’t enough space for establishing a separate dining room, then it can be kept near the kitchen or in a part of the drawing room.
Separate Dining room should be kept in the West direction, as this direction is ruled by the planets Saturn or Shani.
As this direction is ruled by Saturn, which is known as the slowest planet due to its slow speed. It is believed that food should be eaten शनैः शनैः means slowly slowly.