Eco-Efficient Retrofitting of Rural Heritage: A Systematic Review of Sustainable Strategies

Stefano Bigiotti (), Mariangela Ludovica Santarsiero, Anna Irene Del Monaco and Alvaro Marucci ()
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Stefano Bigiotti: Department of Agriculture, Forests, Nature and Energy (DAFNE), University of Tuscia, 01100 Viterbo, Italy
Mariangela Ludovica Santarsiero: Department of Agriculture, Forests, Nature and Energy (DAFNE), University of Tuscia, 01100 Viterbo, Italy
Anna Irene Del Monaco: Department of Architecture and Design (DiAP), Sapienza–University of Rome, 00185 Roma, Italy
Alvaro Marucci: Department of Agriculture, Forests, Nature and Energy (DAFNE), University of Tuscia, 01100 Viterbo, Italy

Energies, 2025, vol. 18, issue 15, 1-48

Abstract: Through a systematic review of sustainable rural dwelling recovery, this study offers a broader reflection on retrofitting practices, viewing eco-efficiency as a means to enhance both cultural heritage and agricultural landscapes. The work is based on the assumption that vernacular architecture in rural contexts embodies historical, cultural, and typological values worthy of preservation, while remaining adaptable to reuse through eco-efficient solutions and technological innovation. Using the PRISMA protocol, 115 scientific contributions were selected from 1711 initial records and classified into four macro-groups: landscape relationships; seismic and energy retrofitting; construction techniques and innovative materials; and morphological–typological analysis. Results show a predominance (over 50%) of passive design strategies, compatible materials, and low-impact techniques, while active systems are applied more selectively to protect cultural integrity. The study identifies replicable methodological models combining sustainability, cultural continuity, and functional adaptation, offering recommendations for future operational guidelines. Conscious eco-efficient retrofitting thus emerges as a strategic tool for the integrated valorization of rural landscapes and heritage.

Keywords: rural building; vernacular architecture; energy retrofitting; seismic adaptation; passive design; agricultural landscape; cultural heritage; environmental sustainability (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2025
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