build bulldozer construction garage groundwork hole loader lorry machine machines tractor truck wheel wheels dig digger earth excavate excavator cutout isolated building clear cleared development empty fences foundation work foundations land level levelling levels property ready for building sand sand pads suburban urban vacant vacant block abstract appearance compacted compacting firm firming flatten flattened leveled leveling levelled mark marked preparation prepared preparing sandpad work workmen yellow yellow-sand foundation-work ready-for-building sand-pads vacant-block