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Farhan, M, Tokbolat, S and Osorio Sandoval, C (2025) Sustainable Low-Carbon Housing Retrofitting in the UK: An LCA-Based Assessment for Building Regenerative Cities. In: Thomson, C (Ed.) and Neilson, C J (Ed.), Proceedings 41st Annual ARCOM Conference, 1-3 September 2025, Abertay University, Dundee, UK. Association of Researchers in Construction Management, 910-920.
- Type: Conference Proceedings
- Keywords: embodied carbon, global warming potential, life cycle assessment, regenerative cities, retrofitting
- ISBN/ISSN: 978-0-9955463-9-4
- URL: http://www.arcom.ac.uk/-docs/proceedings/35b8efbce9e3fd1acbe25ae869db5c62.pdf
- Abstract:
The UK's housing sector needs to reduce embodied carbon in retrofitting to achieve net-zero targets, particularly in the context of building regenerative cities. While 80% of existing homes will remain in 2050, research predominantly examines operational carbon, neglecting embodied carbon associated with construction materials and processes. This paper addresses this gap through long-term sustainability analysis using cradle-to-grave Life Cycle Assessment (LCA), evaluating three retrofitting scenarios for a London-based semi-detached house over a 60-year lifespan using the One Click LCA tool. Results show that material selection and durability critically influence outcomes, with embodied carbon increases of 38-64%. These findings demonstrate key trade-offs between initial material choices and long-term emissions, providing essential evidence for LCA-integrated retrofitting planning. The research offers practical solutions to transform existing housing into sustainable urban assets through carbon-conscious material selection, directly supporting regenerative city development. By quantifying these relationships, the study presents a replicable framework for reducing embodied carbon in urban regeneration projects.