34th Annual Conference of the International Group for Lean Construction (IGLC 34) - Singapore, Singapore - 2026

https://doi.org/10.24928/2026/0141

Ecofix- a PyRevit prototype for a Lean and sustainable renovation decision support tool

Narmada Bharadwaj1, Prasanna Venkatesan Ramani2, Mushrifa Ali3, Saran Somapalli Sureshkumar4 & Harshitha Tumma5

1Masters Student, School of Civil Engineering, VIT University, Vellore, India,[email protected]
2Associate Professor, School of Civil Engineering, VIT University, Vellore, India, [email protected], orcid.org/0000-0002-6924-9520
3Doctoral Research Scholar, School of Civil Engineering, VIT University, Vellore, India, [email protected], orcid.org/0009-0000-3444-5874
4Masters Student, School of Civil Engineering, VIT University, Vellore, India, [email protected]
5Masters Student, School of Civil Engineering, VIT University, Vellore, India, [email protected]

Abstract

Renovation and adaptive reuse offer sustainable alternatives in the construction industry, but are underused due to a lack of integrated decision support tools, which can aid during the design stage. This paper presents Ecofix, a prototype developed using PyRevit, which acts as an integrated sustainable renovation decision support tool inside Autodesk Revit environment. This tool is developed using Python, and it assists designers and engineers to evaluate various retrofit, demolition, demolition with rebuild, retain, and new build scenarios using lean and sustainable design principles. This tool automatically extracts the material and quantity data from Revit, calculates and gives a comparative report for retrofit, demolition, rebuild, reuse, retain and new build. It takes carbon dioxide equivalent, cost, and time required to complete the work based on the quantity selected by the user into account. Ecofix aligns with lean and green by embedding waste-free decision support inside Revit. This tool eliminates lean wastes (information transfer, time, over-processing) by automatically taking Revit quantities and ranking retrofit, demolish, rebuild, and retain options by carbon dioxide equivalent, cost and time. The prototype enables Set-Based Design and material waste elimination through salvage/reuse quantification, prioritising lowest-carbon scenarios while maximising circular economy benefits.

Keywords

Sustainability, lean and green, set-based design, renovation decision support, and digitalisation and lean.

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Reference in APA 7th edition format:

Bharadwaj, N., Ramani, P. V., Ali, M., Sureshkumar, S. S. & Tumma, H.. (2026). Ecofix- a PyRevit prototype for a Lean and sustainable renovation decision support tool. In Hamzeh, F., Poshdar, M., & Garcia-Lopez,, N. P. (Eds.), Proceedings of the 34th Annual Conference of the International Group for Lean Construction (IGLC 34) (pp. 438–448). https://doi.org/10.24928/2026/0141

Shortened reference for use in IGLC papers:

Bharadwaj, N., Ramani, P. V., Ali, M., Sureshkumar, S. S. & Tumma, H.. (2026). Ecofix- a PyRevit prototype for a Lean and sustainable renovation decision support tool. IGLC34. https://doi.org/10.24928/2026/0141

 

Founded in 1993, the IGLC is an international network of researchers from practice and academia in architecture, engineering, and construction (AEC) who feel that the practice, education, and research of the AEC industry have to be radically renewed in order to respond to the global challenges ahead.

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