With an area of 260 square metres, the Treaty of Lisbon Hall saw a meeting of the European Heads of State to hold discussions on the Treaty of Lisbon during the course of the Portuguese Presidency of the European Union.

The Treaty of Lisbon Hall can be used independently from the other facilities of Pavilhão Atlântico or it can be complemented with other spaces on offer at the Pavilion.

It is ideal to host meetings of up to 50 delegates, is fully equipped with blackout facilities, air conditioning, and separate toilet facilities, as well as provided with a cloakroom, catering facility, and dressing rooms.