Land became increasingly valuable in North Kensington, and part of the plot north of Grenfell Walk was allocated to the Kensington Aldridge Academy and then for a redesigned Kensington Leisure Centre. Government energy targets forced authorities to re-examine the energy efficiency of their buildings, and affordable housing targets forced them to look for additional ways of adding accommodation to existing buildings. This, and the recurrent failure of the district heating system serving the finger blocks, resulted in 2015 in the Grenfell tower being modernised, reglazed, insulated and clad in a highly-flammable aluminium sheet material.