A Model for Integrating Sustainability Metrics into Architectural Project Lifecycle Management

Sustainability Metrics, Architectural Project Management, Lifecycle Thinking, Environmental Design, Post-Occupancy Evaluation, Sustainable Architecture, Project Phasing, Triple Bottom Line.

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August 6, 2025

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The urgency of sustainable development in the built environment has intensified the demand for integrative models that embed sustainability principles across the entire architectural project lifecycle. This paper proposes a conceptual model that incorporates environmental, social, and economic sustainability metrics into each phase of architectural project management—from planning and design to procurement, construction, occupancy, and post-occupancy evaluation. While sustainability in architecture is often addressed during the design phase, there remains a gap in frameworks that systematically integrate measurable indicators across all project phases in a structured and actionable way.

The proposed model responds to this gap by drawing from interdisciplinary literature, international sustainability frameworks such as LEED, BREEAM, and the UN Sustainable Development Goals (SDGs), and best practices in lifecycle thinking. It offers a comprehensive approach to project management by translating high-level sustainability objectives into operational metrics relevant to each stage of development. The model is informed by a mixed-method methodology involving literature synthesis, expert interviews, and case analysis of high-performance sustainable buildings. Emphasis is placed on identifying phase-specific sustainability drivers, decision points, and performance indicators that can support informed, value-based decision-making throughout the lifecycle of a project.

By mapping sustainability metrics to specific phases of project execution, the model aims to assist architects, project managers, and stakeholders in evaluating trade-offs and aligning project goals with broader sustainability outcomes. Additionally, the model introduces a feedback loop from post-occupancy evaluation to inform future projects, thereby enabling adaptive learning and continuous improvement. This research contributes to the emerging discourse on sustainable architecture not only by bridging the gap between theory and practice but also by offering a framework that can be adapted to diverse contexts and project scales.

Ultimately, this model serves as a practical and scalable tool for embedding sustainability into the managerial and operational fabric of architectural projects, ensuring that sustainability is not an afterthought but an integrated process driver.