Royal Households of the United Kingdom Queen and the Prince of Wales, had approved a plan that would have the Duke and Duchess of Cambridge permanently move to a larger apartment in Kensington Palace in 2013, after it is renovated. This apartment was previously occupied by the Queen's sister, Princess Margaret, Countess of Snowdon and her husband Antony Armstrong-Jones, Earl of Snowdon after their marriage in 1960. The apartment was retained by Princess Margaret after her divorce in 1978 and was her London residence until her death in 2002. Prince Harry will then move his official residence from Clarence House to the apartment vacated by the
Catherine, Duchess of Cambridge provide activities to over 400,000 young people in the UK. In October 2012, the Duchess gave her royal patronage to the M-PACT programme (Moving Parents and Children Together), one of the only UK programmes to focus specifically on the impact of drug addiction on families. In December 2015, she assumed the patronage of the Royal Air Force Air Cadets for youths 12–19 years of age. The Duke of Edinburgh, who had been patron of the RAF Cadets for 63 years, formally handed over during an audience at Buckingham Palace. In 2017, she replaced the Queen as patron of The Lawn