Hire City Hall Drinks receptions, dinners, conferences, film shoots and more – we can cater for everyone. Book Trafalgar Square We manage Trafalgar Square. Apply to host your event here: cultural, commercial, rallies, filming, photo shoots, more. Book Parliament Square We manage Parliament Square Garden. Apply to host your event here: filming, photo-shoots, public gatherings and more. Event Sustainability Here at City Hall we are proud to be making our events more sustainable. About City Hall How to find City Hall Plan your journey to City Hall by tube, train, bus, bike, river or foot. City Hall accessibility We're committed to making it easy for all visitors to access and use City Hall. What can you visit? Find out what you can see as a visitor to City Hall. About our building City Hall was designed by Foster + Partners. The GLA is leasing City Hall for 25 years.