EPR Architects-designed plans to convert a Mayfair office building into a 70-room hotel and private members’ club have been refused at appeal.

The practice’s proposals would have involved the excavation of a three-level basement and the addition of a new roof terrace to seven-storey Leconfield House in Curzon Street, originally built in the 1930s.

EPR’s proposals also included restaurants, a spa and wellness centre, and shops. But Westminster City Council refused the application in August last year, saying developer Leconfield House Ltd had provided insufficient evidence that there was no market interest in the building’s ongoing use as offices.

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