The challenge of SEN4RUS is to develop a set of indicators by exploiting the Copernicus Sentinels in support of urban and peri-urban planning. Three representative Russian cities with different characteristics are the case studies. SEN4RUS will extend the GEOURBAN indicators to new applications, i.e. energy, urban climate. The development of a Web-based Information System (WIS) will evaluate and provide the indicators in a user-friendly form that allows direct implementation into planning procedures. SEN4RUS bridges the gap between Earth Observation (EO) scientists and urban planners focusing on the urban structure and the urban environmental quality.