If you have leftover turf, you could offer it for free online on sites such as Gumtree or Freecycle. You could also turn it upside down to kill weeds or use as a loam. If the turf is not reusable, it can be taken to a north London reuse and recycling centre (RRC), but not Gateway Road in Waltham Forest. Please also note that you can only take six bags.