The temporary structures will be completely removed by the end of November and the park will then be handed back to the Royal Parks. Areas will then be re-turfed or sown with grass seed.
The Royal Parks has been working with games organiser LOCOG for the past three years on the reinstatement plan, which is funded by the LOCOG.
Greenwich Park venue manager for LOCOG Jeremy Edwards said the overall condition of the park would be improved. "What we said we were going to do we have done," he said.
Project manager for the London Games and former Greenwich Park head of parks, Derrick Spurr, added: "About 70-80 per cent of the park is back as it was, and some areas are better. Some areas have been fenced off and have had time to recover. Areas are green that haven’t been for a number of years. Within one growing season people will have difficulty telling the event took place here."
He said that acid grassland in the park had benefitted, having the chance to seed rather than be trampled by visitors.