| In Singapore, the Urban Redevelopment Authority (URA) is responsible for national land use planning. Property sales transactions are based on nett saleable instead of gross saleable floor area. Nett saleable area is measured up to the centre line of the wall separating adjoining units. This includes the full thickness of the walls separating the units from common areas, lift shafts, ledges for air-conditioning units, staircases, for example. |