On the conversion of civil housing use area and construction area! The usable area is 21.5 square meters. How many square meters is the building area? How to calculate? Please don't paste a lot of I just want an answer. The floor area of my small apartment is 21.5 square meters, single balcony and side guard. What's the building area? The house was built in 1990 (brick concrete structure)!

On the conversion of civil housing use area and construction area! The usable area is 21.5 square meters. How many square meters is the building area? How to calculate? Please don't paste a lot of I just want an answer. The floor area of my small apartment is 21.5 square meters, single balcony and side guard. What's the building area? The house was built in 1990 (brick concrete structure)!

Guess it's 32 Ping