All the surviving megalithic tombs from the Early Neolithic period have suffered from neglect and the ravages of agriculture. Following the demolition of the tomb's chamber, some of the sarsens around Addington Long Barrow had been buried, while others had been left visible. Various buildings in Addington are partly made of sarsen stone, some perhaps removed from the long barrow. Ashbee also suspected that sarsens from the monument had been broken up for use in the repairs and extensions to the local church in the nineteenth century. The barrow was further damaged by the construction of the small road running through the middle of it.