Authors : Tuyisenge Emmanuel; Dr. Musabe Jean Bosco

Volume/Issue : Volume 11 - 2026, Issue 9 - September

Google Scholar : https://tinyurl.com/bd5e6c8z

DOI : https://doi.org/10.38124/ijisrt/26sep108

Note : A published paper may take 4-5 working days from the publication date to appear in PlumX Metrics, Semantic Scholar, and ResearchGate.

Abstract : The study examines the effect of adopting green construction practices on the sustainability of public infrastructure projects in Rwanda, focusing on the Kigali Green Complex as a case study. The general objective was to assess how integrated green practices influence environmental sustainability, while specific objectives explored the contributions of energy-efficient building systems, renewable energy technologies, sustainable water management practices, and low-carbon construction materials. The research employed a mixed-methods approach using a descriptive and correlational research design. The study population was 212 stakeholders while sample size was 139 respondents. Stratified random sampling and purposive sampling were used. Data were collected using structured questionnaires. Quantitative data were analyzed using descriptive statistics (means and standard deviations), Pearson correlation, and multiple linear regression. Findings from descriptive statistics indicated high adoption levels of green construction practices, with mean scores above 4.0 across all variables.

Keywords : Green Construction; Environmental Sustainability; Public Infrastructure; Energy Efficiency; Renewable Energy; Water Management; Low-Carbon Materials; Kigali Green Complex (KGC).

References :

1. AfDB. (2024). Gautrain Rapid Rail Project Sustainability Report. African Development Bank
2. ASCE. (2025). Sustainable Infrastructure Guidelines. American Society of Civil Engineers
3. ASHRAE. (2023). Energy-Efficient HVAC Design Standards. American Society of Heating, Refrigerating and Air-Conditioning Engineers
4. Banasik, M., & Kielasiński, B. (2024). Reforms in EU Construction Sustainability Standards. European Environmental Law Review
5. BCA. (2024). Green Mark Certification Framework. Building and Construction Authority, Singapore
6. CFP Energy. (2023). Eco-Friendly Construction Materials and Carbon Reduction Strategies.
7. City of Kigali. (2025). Green City Kigali Project Master Plan. Kigali City Council
8. Creswell, J. W., & Creswell, J. D. (2023). Research Design: Qualitative, Quantitative, and Mixed Methods Approaches. SAGE Publications
9. Davis, F. D. (1989). Perceived Usefulness, Perceived Ease of Use, and User Acceptance of Information Technology. MIS Quarterly, 13(3), 319–340
10. Duan, J., Wu, F., & Li, H. (2023). Digital Integration and Project Delivery in Smart Cities. International Journal of Project Management
11. EAC Secretariat. (2025). EAC4Nature Programme Strategic Plan 2025–2028
12. European Commission. (2023). Directive (EU) 2024/1275 on Energy Performance of Buildings
13. Further Africa. (2025). Kigali Green Complex Launch Report
14. Global Infrastructure Hub. (2023). Green Construction Practices and Sustainable Infrastructure Trends
15. Green Building Council. (2023). Energy Efficiency and Green Building Guidelines
16. Green Construction Hub. (2023). Sustainable Construction Practices Handbook
17. Habimana, J., & Niyitegeka, T. (2023). Challenges of Implementing Green Building Guidelines in Rwanda. Rwanda Journal of Environmental Studies
18. Holcim Group. (2023). Low-Carbon Building Solutions and Sustainable Materials Report
19. IEA. (2023). Global Energy Efficiency 2023 Report. International Energy Agency
20. IFC. (2023). EDGE Green Building Certification Africa Progress Report. International Finance Corporation
21. IRENA. (2023). Renewable Energy Integration in Public Infrastructure. International Renewable Energy Agency
22. JLL. (2024). Africa Sustainability Insights Report. Jones Lang LaSalle.
23. MLIT Japan. (2023). Comprehensive Assessment System for Built Environment Efficiency (CASBEE). Ministry of Land, Infrastructure, Transport and Tourism
24. MOHURD. (2024). China’s 14th Five-Year Plan for Green Infrastructure. Ministry of Housing and Urban-Rural Development
25. Munyaneza, P., Nshimiyimana, E., & Uwitonze, D. (2023). Adoption of Renewable Energy Technologies in East African Public Infrastructure Projects. East African Journal of Sustainable Development
26. NIST. (2023). Sustainable Infrastructure Planning Standards. National Institute of Standards and Technology
27. Niyonsenga, E., & Mugisha, P. (2024). Sustainability Lessons from Kigali’s Green City Pilot Project. Journal of Urban Development in Africa
28. Pure QUB. (2023). Integrating Renewable Energy Technologies into Green Construction.
29. Qian, Y., Li, W., & Chen, Z. (2023). Energy-Efficient Measures in Commercial Buildings across Climate Zones. Energy and Buildings, 278(1), 122–136.
30. REN21. (2023). Renewables in Cities Global Status Report
31. RPPA. (2024). Sustainable Public Procurement (SPP) Framework. Rwanda Public Procurement Authority
32. Saka, S., Akinyemi, T., & Olatunji, J. (2023). Adoption of Digital Tools for Infrastructure Delivery in Africa. Construction Innovation Journal
33. UDL. (2024). Kigali Green Complex Sustainability Report. Ultimate Developers Ltd
34. UKGBC. (2023). Sustainable Construction Principles. UK Green Building Council
35. UNECE. (2023). Building Resilient Energy and Renewable Systems for Sustainable Infrastructure. United Nations Economic Commission for Europe
36. UNEP. (2023). Sustainable Urban Infrastructure Development Report.United Nations Environment Programme
37. UNEP. (2024). Green Construction and Climate Action Framework. United Nations Environment Programme
38. Uwizeyimana, J., Manirakiza, F., & Tuyisenge, C. (2023). Financing Models for Energy-Efficient Infrastructure Projects in Rwanda. Journal of Construction Economics and Policy
39. Vogel, I. (2012). Theory of Change: Methodology and Practice. DFID Evaluation Guidance
40. World Bank. (2024). Green Infrastructure and Climate Resilience in Africa
41. World Green Building Council. (2023). Advancing Net-Zero Buildings and Green Infrastructure
42. Wu, Z., Zhao, X., & Wang, J. (2023). Digital Transformation and Environmental Sustainability. Sustainable Cities and Society.