This report (D5.2) contains the results of the roadmap interviews held with more than 20 European experts (representing industry, knowledge institutes and governmental organisations) in the field of sustainable energy for urban spaces. The aspects covered are technology, behaviour and organisation. The information collected from the desk study (D5.1) and the roadmap interviews was used in an expert meeting to identify the most relevant topics and to create a timeline for each topic, showing when relevant options become available on the path to meet the needs of the cities (as described in report D2.2). The timelines of Smart Buildings (D3.2), Smart Mobility (D4.2) and Smart Urban Spaces (D5.2) were then aligned in a cross-theme expert meeting to gain understanding of the interlinking areas and potential options across several focus areas. This report presents the resulting General Roadmap Smart Urban Spaces, together with accompanying information from the desk study and the interviews. The creation of the general roadmap is part of the WP5 Roadmap Smart Urban Spaces for the R4E project.