 Once the Trust took ownership , scaffolding was placed in the hallway to repair the roof lantern . While this was in place the architectural paint analyst Lisa <unk> was able to examine the decorative scheme that had been used in the spaces and room frequented by the public . Three principal phases were identified : 1860s original ; 1870s updates and adaptions ; 1887 – 90 redecoration , which returned the main spaces to the original green colours and motifs created by Crace . Once lantern repairs were complete , the Trust replaced the elderly <unk> carpet destroyed by contractors working for Christie 's with a new Wilton carpet with a replica design by Linney Cooper , bought with £ 45 @,@ 000 from public lottery donations . 
