Which London theatre has been home to 'The Mousetrap' since 1974?

The London theatre that has been home to The Mousetrap since 1974 is St Martin’s Theatre.

The play first opened in London at the Ambassadors Theatre on 25 November 1952. In March 1974, it transferred next door to the larger St Martin’s Theatre, where it continued its record-breaking run. The first performance there took place on 25 March 1974.

St Martin’s Theatre stands on West Street in London’s West End and was designed by architect W. G. R. Sprague. It was built as part of a pair with the Ambassadors Theatre, making the play’s move between the two venues especially convenient.

The transfer is sometimes confused with the play’s original London opening, which was at the Ambassadors. Theatre Royal Drury Lane and Her Majesty’s Theatre are historic London venues, but neither has housed The Mousetrap. Performances were suspended during the COVID-19 pandemic and resumed in May 2021.