Structured Repository of Retrofit Solutions

Historic buildings require retrofit solutions that balance heritage conservation, energy performance, and long-term sustainability.This repository brings together proven retrofit solutions implemented in historic buildings across Europe. Each entry is linked to a real case study and includes technical information, documentation, photographs, performance indicators, and lessons learned from practice. Use the filters to identify solutions that match your building characteristics, conservation requirements, energy objectives, and project constraints. Whether you are looking for interventions on walls, windows, roofs, renewable energy systems, or building services, the repository helps you identify relevant approaches for your renovation project.