Adaptive Reuse as a Low-Carbon Design Strategy in the Indian Context: An Embodied Carbon Comparison with New Construction
インドにおける適応的再利用を低炭素設計戦略として：新築とのエンボディドカーボン比較 (AI 翻訳)
Jahnavi Gs, D. V. Prakash
🤖 gxceed AI 要約
日本語
本研究は、インド・バンガロールのオフィスビルを対象に、適応的再利用（改修）と新築の上流エンボディドカーボン（A1-A5）を比較した。結果、適応的再利用は約30-50%の排出削減効果があり、構造体の保持が主要因である。急速に都市化するインドの建築政策にエンボディドカーボン評価を統合する必要性を示す。
English
This study compares upfront embodied carbon (A1-A5) between adaptive reuse and new construction for office buildings in Bengaluru, India. Findings show adaptive reuse reduces emissions by 30-50%, driven by structural retention. It highlights the need to integrate embodied carbon assessment into architectural practice and policy in rapidly urbanizing Indian cities.
Unofficial AI-generated summary based on the public title and abstract. Not an official translation.
📝 gxceed 編集解説 — Why this matters
日本のGX文脈において
インドのケーススタディではあるが、日本でも建築物のライフサイクル炭素評価（LCCA）が注目されており、既存ストックの活用による炭素削減は日本のGX施策（ゼロエネルギー建築、既存建築物の改修促進）とも共通点がある。ただし、直接的な日本の政策（SSBJなど）への言及はないため、日本読者には参考情報として位置づけられる。
In the global GX context
While focused on India, this paper contributes to the global discourse on embodied carbon in buildings, especially relevant as more countries (EU, US, Japan) develop lifecycle carbon regulations. It provides empirical evidence on the carbon benefits of adaptive reuse, supporting strategies like building retention and renovation over demolition and new build.
👥 読者別の含意
🔬研究者:Provides empirical embodied carbon data for office buildings in India, useful for comparative lifecycle assessment studies.
🏢実務担当者:Architects and developers can use the 30-50% reduction figure to justify adaptive reuse projects in carbon accounting.
🏛政策担当者:Supports integrating embodied carbon limits into building codes for rapidly urbanizing regions.
📄 Abstract（原文）
Abstract The building and construction sector is one of the largest contributors to global greenhouse gas emissions, accounting for a significant share of both operational and embodied carbon. While regulatory frameworks such as the Energy Conservation Building Code (ECBC 2017) have improved operational energy performance in India, emissions associated with material extraction, manufacturing, transportation, and construction remain largely unregulated. As buildings become more energy-efficient, embodied carbon constitutes an increasing proportion of lifecycle emissions, particularly in reinforced concrete commercial structures. This study evaluates adaptive reuse as a low-carbon design strategy by comparing the upfront embodied carbon of an adaptive reuse workplace and a newly constructed commercial office building in Bengaluru, India. The analysis focuses on lifecycle stages A1–A5, representing emissions generated prior to building occupancy. A comparative case study methodology is adopted using secondary data sources, institutional benchmarks, and lifecycle assessment principles. Embodied carbon values are normalized per square meter (kgCO₂e/m²) to ensure comparability. Results indicate that conventional reinforced concrete office buildings typically exhibit embodied carbon intensities between 450–750 kgCO₂e/m², whereas adaptive reuse projects range between 300–500 kgCO₂e/m² depending on structural retention levels. The findings suggest that adaptive reuse can reduce upfront embodied carbon emissions by approximately 30–50%. Structural retention emerges as the primary driver of this reduction. The study highlights the need to integrate embodied carbon assessment into architectural practice and policy frameworks in rapidly urbanising Indian cities. Key Words: Adaptive reuse, embodied carbon, lifecycle assessment, sustainable architecture, structural retention, Bengaluru
🔗 Provenance — このレコードを発見したソース
- semanticscholar https://doi.org/10.55041/ijsrem58188first seen 2026-06-29 06:29:06
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