International Research Journal of Engineering and Technology (IRJET)
e-ISSN: 2395-0056
Volume: 12 Issue: 11 | Nov 2025
p-ISSN: 2395-0072
www.irjet.net
A Review Paper on Case Study of Successful Green Building Projects Mr. Saurabh Bhandare1, Dr. Abhay Shelar2 1ME 2nd Year Environment & Civil Department, Anantrao Pawar College of Engineering and Research Pune, MH,
India
2Professor & Civil Department Anantrao Pawar College of Engineering and Research Pune, MH, India
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Abstract - The concept of sustainable architecture has
Maharashtra’s broader ambitions to meet national climate goals, reduce urban environmental footprints, and promote responsible resource use. The promotion of green buildings across urban centers such as Pune, Nagpur, and Mumbai, where residential and institutional projects act as proof of concept, showcases Maharashtra’s leadership in embracing sustainability at scale.
evolved from a niche initiative to a core component of responsible urban development, particularly in Maharashtra, where rapid urbanization has intensified environmental challenges. This project analyzes the performance and significance of two exemplary GRIHA-rated buildings—Raheja Vistas T12 & T13 in Pune and Raj Bhavan, Nagpur Division— as benchmarks of green architecture in India. Both embody energy efficiency, water conservation, renewable integration, and occupant comfort within their respective urban and institutional settings. Raheja Vistas, developed by K. Raheja Corp, demonstrates a 40.28% energy reduction and 33.72% water savings through use of high-performance materials, daylight optimization, low-flow fixtures, and waste-to-compost conversion systems. Meanwhile, the Raj Bhavan retrofit integrates a 4 kWp solar PV system, achieving 32.85% renewable energy offset and 40.79% reduction in water consumption while preserving heritage integrity. These projects underscore Maharashtra’s leadership in the national green building movement encouraged by IGBC and GRIHA frameworks. Their success results from policy incentives, technological innovation, and design collaboration that collectively prove sustainability is not only an environmental imperative but a viable path toward economic resilience, human well-being, and India’s long-term net-zero carbon ambitions.
The state's green infrastructure strategy marries technological innovation with policy incentives to create buildings that are energy-efficient, water-conscious, and supportive of occupant health and well-being. Projects like Raheja Vistas and Raj Bhavan highlight that such sustainable designs are not only environmentally vital but also economically viable and socially beneficial. These structures demonstrate significant reductions in energy and water consumption, use of renewable energy sources, and application of sustainable construction materials while enhancing indoor environmental quality. 1.1 Objectives 1.
To evaluate the environmental benefits of GRIHArated projects in Maharashtra.
2.
Key Words: Sustainable Architecture, GRIHA-rated buildings, Energy Efficiency, Water Conservation, Renewable Integration.
To analyze design interventions that achieve measurable reductions in energy and water demand.
3.
To establish frameworks and best practices for replicating similar projects statewide.
1.INTRODUCTION
4.
To analyze challenges and limitations faced during the execution of green projects and suggest practical solutions for overcoming them.
This Maharashtra’s commitment to sustainable development is reflected in its comprehensive green building policies and regulations aimed at transforming the construction sector into a model of environmental stewardship. The state government has instituted policy frameworks such as the Maharashtra Green Building Policy, which incentivizes developers and property buyers with benefits like rebates on development charges and property taxes for IGBC and GRIHA-certified projects. Moreover, the recent draft of the Energy Conservation Building Code (ECBC) Rules 2025 mandates stringent energy efficiency standards for commercial buildings, pushing for advanced measures in building envelope design, HVAC systems, lighting, and renewable energy integration. These initiatives align with
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Impact Factor value: 8.315
1.2 Limitations
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The case studies primarily focus on two projects representing distinctly different typologies—new residential construction and heritage institutional retrofit—limiting generalizability across all building types.
Performance data is subject to seasonal and occupancy variations, which may skew energy and water savings estimation.
ISO 9001:2008 Certified Journal
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