Leveraging on the business operations of consortium partners (4000 integrated building renovations conducted to date), TURNKEY RETROFIT will develop and replicate an integrated home renovation service which will be initially operated in 3 EU countries - France, Ireland and Spain - with an expected 335M€ investment pipeline for home renovation within the first 5 years (approximately 14 700 dwellings renovated, leading to 96,6 GWh/year Primary energy savings triggered) beyond the end of the project. The project will point to further replication across Europe and Internationally in particular via the Green Building Council network. The TURNKEY RETROFIT service will be developed as a home-owner-centric renovation journey, which will transform the complex and fragmented renovation process into a simple, straightforward and attractive process for the home-owner. It will include the initial technical and behavioural diagnosis, technical offer, contract development and agreement, structuring and provision of financial support, as well as the on-site coordination of works and quality assurance. It will be a service-oriented model where the home-owner is offered tailor-made solutions through the whole customer journey. The service will be accessible through a user-friendly digital platform and it will address drivers of building renovation that go beyond a desire to reduce energy bills and increase asset value, such as home improvement, increased comfort, enhanced health & quality of life.