The average price relates to the types of buildings. For example:

(A)the average rental price for a Type A office is estimated

 30 euros per square meter

(B)the average rental price for a type B office is estimated  13-20 euros and so for square meters

(C)the average rental price for a type C office is estimated
 5 euros per square meter

For example, the price of a store or production hall starts from 5 euros and that's for square meters

Also the rental price relates to the location of the office in Minsk