The first meeting of HLSI was held at The Gatehouse in 1839 and was attended by Keats, Shelley, Byron and Coleridge amongst others.

Upstairs at the Gatehouse is an award winning London Fringe Theatre with a varied programme of drama, musicals and fringe theatre productions. Situated at the top of Highgate Hill we really are London’s Top Theatre.

Ovation, the in-house company, produces several shows each year at Upstairs at the Gatehouse and has been described as one of the best fringe theatre companies in London.