This document provides a policy paper on improving energy efficiency in buildings in the Mediterranean region. It summarizes the current state of energy efficiency in buildings, identifies key barriers, and provides strategic recommendations. The paper was produced by combining research and analysis from three MED transnational cooperation projects: MARIE, ELIH-MED, and PROFORBIOMED. It finds that while progress has been made, many countries are still far from EU 2020 targets. Barriers include lack of funding, skills, and coordination. The paper recommends strengthening governance, promoting green jobs, activating the renovation market, and using smart energy management. It calls for better coordination between EU programs and proposes a macro-regional Mediterranean strategy to improve energy efficiency in buildings across