To mark the 30th anniversary of Prince Charles' famous "Carbuncle Speech", last week the RIBA held a discussion focusing on the speech's impact on British architecture. The speech in which the prince protested the design of a proposed extension to the National Gallery has been seen by some as expanding the debate around architectural quality, but the panelists on the night disagreed with this view: Owen Hatherley said "The idea he broadened the debate is curious. He shut it down." Similarly, Charlie Luxton commented "He turned the debate from one of quality to one of style – and architecture suffered." You can read more of the panelists' views on BD Online.