Within 21 working days of receipt by the purchase of the vendors written notice of completion of -
(a) Work below ground level including piling foundationof the said building comprising the said panel (10%)
(b) the reinforced concrete framework and floor slab of the said parcel. (15%)
(c) the walls of the said parcel with door and window frames placed in position (10%)
(d) the roofing/ceiling, electrical wiring, plumbing (without fittings) gas piping (if any) and internal telephone trunking and cabling to the said parcel. (10%)
(e) The internal and external plastering of the said parcel (10%)
(f) the sewerage works serving the said building (5%)