ITU‐T's Technical Reports and Specifications 925 Standardization roadmap for smart sustainable cities Executive summary This Technical Report is a deliverable of the ITU‐T Focus Group on Smart Sustainable Cities (FG‐SSC), and is one of two Technical Reports on standardization activities, gap analysis, roadmap and suggestions to ITU study groups for smart sustainable cities (SSC). The report is intended to outline a concise roadmap of standardization on the content provided in the “Technical Report on standardization activities for smart sustainable cities”. This Technical Report proposes a framework of standards which are needed for the life‐cycle of building SSC. By classifying four categories and several areas in each category of standards, the SSC‐related standard needs are offered as “tasks” in every area. The corresponding gaps are analyzed, and relevant standards developing organizations (SDOs), consortia and forums are listed as “relationships”. This Technical Report is structured around four main sections. Section one provides the scope of the report. Section five proposes a framework of standards, four structured categories (i.e. SSC management and assessment, SSC services, ICT, buildings and physical infrastructure). Section six presents SSC related SDOs activities. Section seven outlines SSC‐related standard needs, gap analysis and relevant study groups of SDOs, consortium and forums. The standardization roadmap presented in this Technical Report provides a valuable suggestions to ITU‐T SG5 for future work on SSC. It also helps other study groups of ITU and SDOs to understand the areas of the set of FG‐SSC deliverables that can serve as the basis for the development of standards in this field.