This publication presents key results, achievements, and lessons learned from the MultiHome project, which developed and tested a one-stop shop model to support residential energy renovations. Drawing on practical experience from the Plovdiv Region, it examines how coordinated homeowner support, stakeholder collaboration, and market engagement can overcome common barriers to renovation, including fragmented services, limited financing options, and low consumer confidence.

A central theme of the publication is the role of local renovation ecosystems in enabling effective One-Stop Shop services. It highlights how trust, shared objectives and structured cooperation among businesses, professional organisations, public authorities and homeowners can transform isolated actors into a coordinated network capable of delivering integrated renovation solutions. The publication also explores the importance of quality standards, ecosystem orchestration and continuous stakeholder dialogue in strengthening market confidence and collaboration.

Based on the MultiHome experience, the publication provides practical insights for regions seeking to accelerate building renovation rates and support the energy transition. Its findings demonstrate that successful One-Stop Shop services depend not only on the support provided to homeowners, but also on the strength of the relationships, cooperation mechanisms and value-creation processes that underpin the wider renovation ecosystem.