 Complete the following phrase:  Work was halted until the 2010s, in which tets were relocated, and old homes were demolished and rebuilt, notably The Purley Centre between 2017 and 2018, which was replaced by houses, a new row of stores, low rise apartments and recreation space. Marsh Farm Library was relocated to Lea Manor High School, which received its own refurbishment between 2009 and 2011. The three tower blocks received sprinkler systems after concerns were raised during the 