One to two occupants - 7ft x 10ft
Four or more occupants - 10 ft x 13 ft
A small living room can range from sizes 7 ft x 10 ft(70 square feet) to 10 ft x 13 ft(130 square feet).It also depends on the number of inhabitants in the house.
If you live with just one more occupant,
then a 70 square foot home will suffice.If you are a family of four or more,
then 130 square feet is considered a small living area.These spaces tend to have a small open kitchen living room design.
Medium to large living rooms ranges from 200 square feet to 300 square feet.