 The project included the wholesale replacement of the curtain wall system with a near facsimile giving higher thermal performance, and strengthening to the concrete frame to receive the heavier replacement walling.The cost to leaseholders is approximately £95,000 per flat.This project is claimed to be the first of several to address the thermal efficiency of the estate and to address a substantial cumulative maintenance backlog by the freeholder, programmed to run from 2017 to 2027.