ABSTRACT
Overall £ /m² allowances based on gross areas site drainage (per m² of paved areas) m² £ 8.20 to £ 21.08 building drainage (per m² of gross floor area) m² £ 8.20 to £ 18.45 drainage work beyond the boundary of the site and final connection nr £ 1822.68 to £ 12252.22
