Diane Haigh obituary

Architect who updated the fabric of the Royal Festival Hall in line with the spirit rather than the letter of its original designThe Royal Festival Hall, London, opened in 1951. After half a century of constant use, the building and its auditorium found themselves stranded in a lifeless setting, unloved by musicians and losing money. For an upgrading in 2005-07 to enable the RFH to flourish again, the spirit of the original conception needed to prevail over the literal preservation of the struct