REnnovates is a holistic systemic deep renovation concept using smart services and developing smart energy-based communities resulting in energy-neutral housing � up to and beyond Zero Net Energy � by reducing energy consumption and maximizing the use of renewable energy.The REnnovates proposal focuses on the deployment and demonstration of an innovative systemic, 4-step holistic approach comprising state-of-the-art renovation with state-of-the-art smart ICT control. Deep renovation of residential buildings will be carried out including the installation of a standardised pre-fabricated energy module equipped with communication technology converting the buildings into Net Zero Energy Buildings. This can be achieved with minimal disturbance to the tenant and with minimal renovation costs for the tenant/building owner by means of an innovative business model. The inclusion of interoperable smart control strategies introduced at building- , cluster- and business level, implemented on existing software platforms and standard compliant serve to �unlock� the residential energy flexibility for grid and system level services. The project addresses the call for Energy-Efficient Buildings (H2020-EeB-2015), more specifically the topic EeB-08-2015: Integrated Approach to Retrofitting of Residential Buildings. - The holistic concept, an innovative business model and a strong ecosystem makes a smart grid solution possible and forms the basis for smart neighbourhoods and opens the door for new community services.