The maximum possibilities of the plot free of buildings are, therefore, the construction of a single-family house between party walls with a ground floor and first floor area of 70.80 m2. a single-family dwelling between party walls with a ground floor and first floor area of 70.80 m2 for a total of 141,60 m2 on a ground floor of 141,60 m2. ground floor of 141,60 m2 and a basement/semi-basement of 94.40 m2.