Historic Old Sessions House in Clerkenwell Green offers over 18,000 sq ft of refurbished space across 23 unique rooms, ideal for corporate offsites, brand activations, parties, and celebrations. This former courthouse, standing on an island site, combines traditional architectural charm with modern facilities. The Great Room accommodates up to 120 seated or 200 standing guests beneath original sash windows and a giant chandelier. Additional spaces include the Courtroom, Rooftop with panoramic city views, Showroom, and Conversation Room, each with distinctive character and historic details. The venue's flexible layout and multiple rooms enable tailored event configurations for groups of varying sizes and purposes.