The Art Nouveau Site provides a wide range of services to its users — not only to the people and institutions working at Sant Pau but also to interested outsiders. The purpose of these facilities is to complement the core activities of the complex and forge closer ties with the local neighbourhood.

The focus of these services is the Administration Pavilion, whose facilities include the shop and 1902 Cafè Modernista, a café-restaurant open to the general public.

In addition, the Administration Pavilion also has various heritage spaces and multipurpose rooms in which companies and institutions can host seminars, professional meetings and events of all kinds.