This paper presents the approach and findings of the FinSESCo project, which aims to advance building renovation and decarbonisation through digitalisation and innovative financing models. We describe the development of an end-to-end digital platform designed to streamline the definition, financing, and monitoring of renovation projects. The platform integrates asset-based Energy Performance Certification (EPC) data to support decision-making, planning, and transparent contracting. Our mixed-methods research—including qualitative interviews and quantitative surveys across several European countries—identified market needs, regulatory barriers, and user preferences. The results highlight the potential of combining energy performance data with crowd investing and energy contracting to accelerate renovation rates. We discuss pilot implementations, challenges related to crowdfunding and energy contracting, and outline exploitation pathways, including recommendations for policymakers. The findings underline the importance of accessible EPC data, tailored business models, and supportive regulation in achieving Europe’s decarbonisation targets.