Social & Preventive Medicine General 29230530 The optimum floor space recommended per adult person in a house A 101–150 sq.ft. B 70–90 sq. ft. C 151–200 sq.ft. D 201–250 sq. ft. High-Yield Explanation Optimum floor space recommended per adult person in a house: 70 – 90 sq.ft. (7 – 9 sq.m.)