The ninth session and closing ceremony of the 7th Rational and Sustainable Regional Planning Course took place at the Casa Encendida in Madrid: The City: Collective Space/Private Interests, with the participation of the architect Cristina Domínguez, a partner in the E. Bardají y Asociados studio and head of the Urban Planning Department, who gave the paper “Grandes Operaciones Privadas en la Ciudad de Todos” (Large-Scale Private Operations in the City of Everyone). The course was organised by the TRyS Group with the cooperation of the Environment Department of the Casa Encendida in Madrid, the Autonomous University of Madrid Foundation and the School of Architecture and Urban Planning of the Tecnológico in Costa Rica.