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Integrating Construction KPI Data with Life Cycle Assessment: A Case Study of the UCL New Student Centre

建設KPIデータとライフサイクルアセスメントの統合：UCLニュー・スチューデント・センターの事例研究 (AI 翻訳)

Daniel Anyanya, Andrea Paulillo, Charnett Chau, Silvia Fiorini, Paola Lettieri

Crossrefプレプリント2026-01-01#炭素会計Origin: EU経営インパクト: コスト削減対象セクター: construction
DOI: 10.2139/ssrn.6597664
原典: https://doi.org/10.2139/ssrn.6597664

🤖 gxceed AI 要約

日本語

本研究は、UCLニュー・スチューデント・センターの全建物LCAを実施し、実施工KPIデータを統合することで、設計意図と実性能のギャップを明らかにした。運用エネルギーが気候変動影響の73%を占め、初期炭素が26%を占める。設計段階のエネルギー予測と実測値の間に195%の差異があり、これは想定外の24時間365日利用パターンに起因する。また、改修シナリオでは新築比45%の初期炭素削減が可能であることを示した。

English

This study conducts a whole-building LCA for UCL's New Student Centre, integrating construction KPI data. Operational energy accounts for 73% of climate impacts, with embodied carbon at 26%. A 195% performance gap exists between design-stage predictions and actual metered consumption due to unanticipated 24/7 occupancy. A retrofit scenario shows 45% lower embodied carbon vs new construction.

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

日本の建設・不動産業界でもライフサイクルアセスメント（LCA）の重要性が高まっており、本論文の実証データと方法論は、日本版LCA基準の策定や既存ビルの改修計画に示唆を与える。

In the global GX context

This paper provides empirical evidence on the performance gap in building energy modelling and the value of retrofit, informing building LCA standards and circular economy policies globally. It aligns with BREEAM and EN15804 frameworks.

👥 読者別の含意

🔬研究者:Highlights the need for integrating real-time KPI data to bridge design and operational performance in building LCA.

🏢実務担当者:Useful for construction firms to improve data collection and for retrofit assessments.

🏛政策担当者:Informs policy on building codes, circular economy, and LCA standards.

📄 Abstract（原文）

Achieving net-zero carbon in construction requires robust, data-driven Life Cycle Assessments (LCAs). This study presents a comprehensive whole-building LCA for University College London’s BREEAM ”Outstanding” New Student Centre, integrating real-time construction Key Performance Indicator (KPI) data to bridge sustainable design intent with verified performance. Using the EN 15804+A2 methodology, the cradle to grave assessment identifies operational energy use as the dominant contributor, responsible for 73% of total climate change impacts, with embodied carbon constituting a significant 26% (stages A1–A5). Material impacts were primarily driven by the 17,000-tonne precast concrete superstructure; however the use of concrete with 61% GGBS reduced cement-related emissions by approximately 40% compared to a CEM I (100% Portland cement) reference mix. The study further reveals a 195% performance gap between design-stage energy predictions (CIBSE TM54) and actual metered electricity consumption, attributable to unanticipated 24/7 occupancy patterns that were not reflected in design-stage energy modelling. A comparative retrofit scenario underscores the value of building adaptability, demonstrating 45% lower embodied carbon relative to the new construction scenario. To ensure assessment accuracy, the research develops and applies a hybrid material quantification methodology for MEP life cycle inventory (LCI) development, synthesising Environmental Product Declarations (EPDs), operational records and expert consultation to correct discrepancies in material inventories. The findings provide actionable insights for refining construction KPI data management, advancing LCA standards to account for durability and adaptation and informing policy for a circular built environment.

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