<p>The integration of energy and seismic retrofitting in existing reinforced concrete buildings is crucial to take advantage of the building interaction for enhancing both sustainability and structural safety. This study examines the combined implementation of energy efficiency technologies and seismic retrofit technologies to simultaneously address environmental and structural challenges. In regions exposed to seismic risks, there is an urgent need to improve building resilience while also meeting stringent energy performance standards set by European directives such as the Energy Performance of Buildings Directive. The research highlights the role of financial incentives in encouraging the adoption of retrofitting practices, especially for ageing buildings that require comprehensive upgrades. The findings suggest that financial mechanisms are necessary to offset the high costs associated with simultaneous energy and seismic retrofitting, making these projects more accessible to property owners. The study advocates for an integrated approach to retrofitting, where energy efficiency measures and structural improvements are planned cohesively to ensure both objectives are met without compromising each other. By addressing energy efficiency and seismic resilience together, the research emphasizes that such combined retrofitting can lead to significant long-term benefits, including reduced carbon emissions, enhanced public safety, improved indoor comfort, and increased property values. This approach aligns with European Union sustainability and safety goals, contributing to overall community resilience and providing a pathway for more sustainable urban environments.</p>