Sinfonia Smith Square, formerly known as St John’s Smith Square, is a renowned concert venue located in the heart of Westminster, London. Housed in a striking Grade I listed Baroque church completed in 1728, the venue offers a distinctive setting with superb acoustics, elegant architecture, and a rich cultural history. Its Main Hall, known for its iconic chandeliers and checkerboard flooring, provides an exceptional performance space for choirs, orchestras, and chamber ensembles alike. London