farshid adaviProject Manager and Strategic Planner| CivilHouse
For more than half a century, project success has largely been evaluated through three fundamental dimensions: schedule, cost, and scope.
These measures, commonly known as the Iron Triangle, have provided organizations with a practical framework for planning, executing, and evaluating projects. They remain essential and continue to serve as important indicators of project performance.
However, the challenges facing organizations today are significantly different from those that shaped project management practices in the twentieth century.
Climate change, resource scarcity, social expectations, supply chain disruptions, regulatory pressures, and Environmental, Social, and Governance (ESG) requirements are reshaping the context in which projects are conceived and delivered.
As these forces continue to grow, an important question emerges:
Are traditional measures of project success still sufficient?
Or does the profession need to expand its definition of success to include long-term sustainability outcomes?
The Evolution of Project Success
Historically, project management has focused on delivering defined outputs within agreed constraints.This approach has enabled organizations to achieve consistency, predictability, and control.Yet projects are not isolated activities.They are investments intended to create value.
Increasingly, stakeholders expect projects to deliver not only immediate business benefits but also positive long-term economic, environmental, and social outcomes.
A project that is completed on time and within budget may still create unintended consequences if it increases resource consumption, generates significant environmental impacts, or reduces long-term organizational resilience.
In such cases, project performance may be considered successful while project value remains questionable.This distinction is becoming increasingly important for project professionals.
Sustainability and Project Success
Recent research suggests that sustainability should no longer be viewed as a peripheral concern.
According to studies published by the Project Management Institute (PMI), sustainability alignment demonstrates a strong relationship with overall project success. Organizations that actively integrate sustainability considerations into project decision-making report higher levels of stakeholder satisfaction and improved value realization.
These findings suggest that sustainability may not simply represent an additional project objective. Instead, it may function as an enabling factor that strengthens long-term project outcomes.
This perspective challenges a common assumption within many organizations—that sustainability inevitably increases cost and complexity.
While sustainable solutions may require additional investment during project development, they frequently contribute to reduced operational costs, lower risk exposure, improved stakeholder trust, and enhanced organizational resilience over the lifecycle of the asset or service being delivered.
The Built Environment as a Critical Example
The construction and built environment sector provides one of the clearest illustrations of this challenge.
Buildings and infrastructure projects influence energy consumption, carbon emissions, water usage, material demand, and human well-being for decades after project completion.
Consequently, decisions made during project planning and execution can create effects that extend far beyond traditional project closure.
A project manager responsible for a building project today may influence outcomes related to:
1. Operational energy performance
2. Lifecycle carbon emissions
3. Resource efficiency
4. Occupant well-being
5. Community impact
6. Climate resilience
These considerations increasingly affect the long-term value generated by the project and therefore deserve attention alongside traditional performance indicators.
Challenges to Implementation
Despite growing awareness, many organizations continue to struggle with integrating sustainability into project management practices.
Several barriers remain common:
Short-Term Performance Pressures
Organizations frequently evaluate projects based on immediate delivery metrics, while sustainability benefits often emerge over longer time horizons.
Measurement Difficulties
Unlike schedule and cost, sustainability outcomes can be more difficult to quantify and monitor consistently.
Capability Gaps
Many project professionals have received limited training in sustainability-related concepts, frameworks, and performance measurement techniques.
The Emerging Role of Project Leaders
The future project leader will likely require a broader set of competencies than those traditionally associated with project delivery.
In addition to managing scope, schedule, cost, quality, risk, and stakeholders, project professionals will increasingly need to:
1. Apply systems thinking
2. Understand ESG considerations
3. Evaluate long-term value creation
4. Integrate sustainability objectives into decision-making
5. Balance economic, environmental, and social priorities
This evolution aligns closely with PMI's broader emphasis on value delivery and strategic outcomes.
Projects are increasingly expected to contribute to organizational purpose, societal expectations, and sustainable development objectives.
Conclusion
The Iron Triangle remains a valuable foundation for project management. Time, cost, and scope will continue to be important indicators of project performance.However, they may no longer be sufficient indicators of project success.
As organizations face increasingly complex economic, environmental, and social challenges, sustainability is emerging as an essential dimension of value creation.The question for project professionals is therefore not whether sustainability should be considered within projects.
The more relevant question may be:
Can a project truly be considered successful if it achieves its immediate objectives while undermining long-term value?
Answering that question may help define the future direction of the project management profession. Saving Changes...
Mrs. Sosa is right that this conversation deserves a broader audience, and the market may already be confirming why. ESG is no longer exclusively a values framework — it has become an investable asset class, with dedicated ETFs, green bonds, and carbon pricing mechanisms that translate environmental and social performance into measurable financial value. Organizations embedding ESG into project requirements are therefore not simply acting responsibly — they are responding to real market signals. However, the built environment tells a more nuanced story. Real estate investment, one of the largest asset classes in Europe, largely abides by ESG principles only when regulatory frameworks compel it to do so, which is precisely the tension Mr.Adavi described so well when framing lifecycle accountability. This raises a question the PMI Code of Ethics may already answer — if accountability extends beyond delivery and toward long-term societal consequences, can the profession remain neutral when the market is already moving and regulation is filling the gap that voluntary commitment leaves open?
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1 reply by farshid adavi
Jun 22, 2026 9:41 AM
farshid adavi
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Thank you, Enrico, for expanding the discussion in such a meaningful way. Your point about ESG evolving into a market signal rather than solely a values framework is particularly compelling. It suggests that sustainability is increasingly becoming part of the economic logic of projects, not just their ethical dimension. Perhaps an additional challenge for our profession is ensuring that project governance evolves at the same pace. While markets and regulations can influence behavior, project leaders are ultimately responsible for navigating the trade-offs that shape long-term outcomes. That may be where accountability, sustainability, and value realization truly converge. Thank you for sharing your insights
Saving Changes...
Luis BrancoCEO| Business Insight, Consultores de Gestão, LdªCarcavelos, Lisboa, Portugal
Jun 08, 2026 3:56 AM
Replying to farshid adavi
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A very insightful observation. What resonates with me most is the idea that success metrics can sometimes conceal weak decisions, while strong decisions may not reveal their full value until years later. In the built environment, for example, a building can meet every delivery target and still underperform throughout its operational life. Conversely, a decision that increases capital cost today may generate decades of energy savings, resilience, and social value. Perhaps the future challenge for project leaders is not only to deliver projects successfully, but to develop governance models capable of evaluating decisions through a lifecycle and systems-thinking perspective.
Perhaps one of the reasons sustainability remains difficult to integrate into project management is that most governance systems are designed to evaluate performance outcomes more rigorously than the quality of the decisions and trade-offs that produced them.
Performance indicators tell us what happened.
They rarely reveal whether the underlying decisions strengthened or weakened the long-term viability, resilience, and adaptability of the system.
In that sense, sustainability may ultimately be less about measuring outcomes and more about improving the quality of the governance mechanisms that shape decisions throughout the project lifecycle.
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1 reply by farshid adavi
Jun 23, 2026 2:45 AM
farshid adavi
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Thank you, Luis, for this insightful perspective. I particularly appreciate your distinction between measuring outcomes and evaluating the quality of the decisions that shape them. That is a dimension that project governance frameworks often struggle to capture. Perhaps one additional challenge is that many of the consequences of project decisions only become visible years after delivery, especially in areas such as sustainability, resilience, and the built environment. By then, traditional project success measures have often stopped tracking value altogether. Your comment reinforces the idea that the future of project management may depend as much on improving decision governance as on improving delivery performance. Perhaps sustainable project success is ultimately determined not by the metrics we report, but by the decisions we make when facing uncertainty, competing priorities, and long-term consequences. Thank you for enriching the discussion.
Saving Changes...
farshid adaviProject Manager and Strategic Planner| CivilHouse
Jun 21, 2026 2:18 PM
Replying to Enrico Rinaldi
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Mrs. Sosa is right that this conversation deserves a broader audience, and the market may already be confirming why. ESG is no longer exclusively a values framework — it has become an investable asset class, with dedicated ETFs, green bonds, and carbon pricing mechanisms that translate environmental and social performance into measurable financial value. Organizations embedding ESG into project requirements are therefore not simply acting responsibly — they are responding to real market signals. However, the built environment tells a more nuanced story. Real estate investment, one of the largest asset classes in Europe, largely abides by ESG principles only when regulatory frameworks compel it to do so, which is precisely the tension Mr.Adavi described so well when framing lifecycle accountability. This raises a question the PMI Code of Ethics may already answer — if accountability extends beyond delivery and toward long-term societal consequences, can the profession remain neutral when the market is already moving and regulation is filling the gap that voluntary commitment leaves open?
Thank you, Enrico, for expanding the discussion in such a meaningful way. Your point about ESG evolving into a market signal rather than solely a values framework is particularly compelling. It suggests that sustainability is increasingly becoming part of the economic logic of projects, not just their ethical dimension. Perhaps an additional challenge for our profession is ensuring that project governance evolves at the same pace. While markets and regulations can influence behavior, project leaders are ultimately responsible for navigating the trade-offs that shape long-term outcomes. That may be where accountability, sustainability, and value realization truly converge. Thank you for sharing your insights Saving Changes...
farshid adaviProject Manager and Strategic Planner| CivilHouse
Jun 21, 2026 4:04 PM
Replying to Luis Branco
...
Perhaps one of the reasons sustainability remains difficult to integrate into project management is that most governance systems are designed to evaluate performance outcomes more rigorously than the quality of the decisions and trade-offs that produced them.
Performance indicators tell us what happened.
They rarely reveal whether the underlying decisions strengthened or weakened the long-term viability, resilience, and adaptability of the system.
In that sense, sustainability may ultimately be less about measuring outcomes and more about improving the quality of the governance mechanisms that shape decisions throughout the project lifecycle.
Thank you, Luis, for this insightful perspective. I particularly appreciate your distinction between measuring outcomes and evaluating the quality of the decisions that shape them. That is a dimension that project governance frameworks often struggle to capture. Perhaps one additional challenge is that many of the consequences of project decisions only become visible years after delivery, especially in areas such as sustainability, resilience, and the built environment. By then, traditional project success measures have often stopped tracking value altogether. Your comment reinforces the idea that the future of project management may depend as much on improving decision governance as on improving delivery performance. Perhaps sustainable project success is ultimately determined not by the metrics we report, but by the decisions we make when facing uncertainty, competing priorities, and long-term consequences. Thank you for enriching the discussion. Saving Changes...
