Josep Roca, PhD in Architecture (1982) and Professor (1988). Director of the Centre of Land Policy and Valuations at the Technical University of Catalonia and founder of the Virtual City Modelling Laboratory. Director of the PhD program in Urban and Architectural Management and Valuation (1988) and the Master’s Degree (2006) with the same name. Author of urban planning and land management laws for the Spanish Government and regional and local governments. Director of research projects on issues related to urban planning, land management, quality of life, sustainability, environmental and real estate valuation, GIS and 3D models for understanding the city.