Sustainability becomes strategically relevant when it changes the decision, not when it merely changes the language around the decision.
Many organisations approach sustainability as an additional set of project requirements: reduce waste, consider emissions, report social impacts and demonstrate responsible procurement. These can be useful actions, but they do not capture the deeper shift in the supplied material.
Gilbert Silvius' 2017 review argues that sustainability had become sufficiently distinct in project-management research to qualify as an emerging school of thought. The paper identifies four defining characteristics: projects considered in a societal perspective, management for stakeholders, triple-bottom-line criteria and an explicitly values-based approach.
Each characteristic changes what leaders mean by project value.
The project is no longer judged only by whether it produces an output efficiently for a sponsoring organisation. Its consequences may extend across communities, ecosystems, employees, suppliers, customers and future operating conditions. That does not mean every project should pursue every social or environmental objective. It means leaders should make the boundaries and trade-offs of value explicit.
The Strategic Context
The supplied sustainability materials consistently connect three broad dimensions: environmental, social and economic.
The familiar people-planet-profit representation is useful as an entry point. Environmental concerns include energy, water, waste, materials, transport and ecological effects. Social considerations include labour practices, health and safety, human rights, community impacts, customer concerns and ethical behaviour. Economic considerations include financial return but also strategic value and business agility.
The key is not the three circles. It is the interaction between them.
Silvius warns that sustainability indicator frameworks can fragment the concept if environmental, social and economic dimensions are assessed separately. The paper also notes that consensus on a universal set of project sustainability indicators had not emerged and argues that assessment should be configurable to context.
This prevents two opposite errors: reducing sustainability to a single environmental metric, and creating an enormous checklist that treats every possible issue as equally important.
Related article: Sustainability Must Be Designed Into Both the Deliverable and the Delivery System
What Leaders Commonly Misread
The first misread is that sustainability is primarily an environmental issue. The source set is broader. Prugh and Assadourian's What Is Sustainability, Anyway? examines human survival, biodiversity, equity and quality of life, showing that sustainability involves questions about what systems should continue, for whom and under what conditions.
The second misread is that sustainability is automatically aligned with financial value. Sometimes environmental efficiency reduces cost. Sometimes safer work improves reliability. Sometimes resource efficiency reduces exposure. But there can also be genuine trade-offs and upfront investment.
Pretending every sustainability objective is immediately profitable weakens decision quality. Leaders need explicit trade-offs, not moralised business cases.
The third misread is that stakeholder management means securing stakeholder support for a project already defined by the sponsor. Silvius contrasts conventional project-centric stakeholder thinking with a management-for-stakeholders perspective. The shift is from asking how stakeholders can be managed to help the project toward asking how legitimate stakeholder interests shape the project itself.
The fourth misread is that values can be removed from the decision by using metrics. Metrics reflect boundaries, priorities and weighting choices. The sustainability school is distinctive partly because it makes values visible rather than leaving them implicit.
Reframing the Issue
Sustainable project value should be framed as the durable net contribution of an intervention across the systems materially affected by it.
That definition has four consequences.
First, the time horizon expands. A cheap decision now may create operating, environmental or social costs later.
Second, the system boundary expands. Effects outside the project's legal or organisational boundary may still matter strategically.
Third, value becomes multi-dimensional. Financial return remains essential for commercial viability, but it may not be the only criterion.
Fourth, decision transparency becomes more important. When multiple interests and values are involved, leaders need to show which impacts were considered, which were prioritised and why.
Strategic Analysis: Four Ways Sustainability Changes the Decision
Projects in a societal perspective
A project does not exist only inside a sponsor's governance structure. Infrastructure affects communities. Manufacturing projects affect energy, materials and work practices. Digital projects can affect privacy, access and workforce design. The relevant scope depends on material consequence, but societal effects cannot be excluded simply because they sit outside the project organisation.
Management for stakeholders
Stakeholders are not merely risks to delivery. Some are beneficiaries; some bear costs; some provide knowledge; some control permission; some will operate the outcome. A sustainable decision architecture therefore uses stakeholder engagement to understand value distribution and trade-offs, not only to manage resistance.
Related article: You Cannot Manage Stakeholders Like Resources
Triple-bottom-line criteria
Economic, environmental and social dimensions force leaders to examine whether a decision improves one outcome by shifting burden elsewhere. A lower-capital solution may increase lifecycle resource use. A technically efficient solution may create workforce or community impacts. A local environmental gain may depend on a supply-chain impact elsewhere.
The framework does not automatically provide the answer. It improves the question.
Values made explicit
Silvius identifies the values-based characteristic as distinctive because sustainability inevitably reflects ethical and intergenerational choices. For executives, the practical implication is governance clarity. Boards and leadership teams should determine what the organisation will not trade away, where minimum thresholds apply and where balancing is legitimate.
Decision Framework
A sustainability decision can be structured around six tests.
| Test | Leadership question |
|---|---|
| Materiality | Which environmental, social and economic effects are significant for this project? |
| Boundary | Who or what bears consequences outside the immediate project organisation? |
| Time horizon | Which costs or benefits appear later than the delivery phase? |
| Distribution | Who receives the benefit and who bears the burden? |
| Trade-off | Which dimensions conflict and what principle will govern the choice? |
| Evidence | What indicators are strong enough to influence the decision? |
The final step is to define thresholds. Some criteria may be optimisation variables; others may be constraints. Safety, legal compliance or unacceptable ecological harm may be non-tradeable. Other dimensions may be balanced through multi-criteria evaluation.
Silvius' review notes that methods such as sustainability management plans and multi-criteria business-case approaches had begun emerging within sustainable project management. These are historical examples from the 2017 literature, not claims about current professional-standard requirements.
From Strategy to Execution
Immediate action: For major projects, identify the sustainability issues that are genuinely material rather than applying a generic checklist. Record why non-material dimensions were excluded.
Medium-term capability: Integrate sustainability into business cases, option comparison and governance gates. If consideration occurs only after the solution has been selected, it has little power to shape value.
Long-term positioning: Build portfolio-level visibility of cumulative effects. Many small project decisions can create significant enterprise exposure through energy, materials, workforce, community or supply-chain patterns even when each project looks acceptable in isolation.
Signals to Monitor
- sustainability reporting grows but investment choices remain unchanged;
- environmental, social and economic metrics are owned by separate teams with no integrated decision process;
- stakeholder engagement occurs after the preferred option is fixed;
- lifecycle impacts are excluded because they fall outside project closure;
- projects claim sustainability through one positive metric while material negative impacts remain unexamined;
- boards receive sustainability dashboards but not the trade-offs behind major capital decisions.
Questions for the Leadership Team
- Which sustainability considerations would actually cause us to choose a different option?
- What project impacts sit outside our organisational boundary but remain material to value or risk?
- Which stakeholders bear costs that are not visible in our financial business case?
- What sustainability criteria are non-negotiable, and which can legitimately be traded?
- Are our measures integrated enough to detect burden shifting between social, environmental and economic outcomes?
- Where does our portfolio create cumulative effects that individual project assessments miss?
Source References
- Silvius, G. (2017), Sustainability as a new school of thought in project management, Journal of Cleaner Production, 166, 1479–1493.
- Prugh, T. & Assadourian, E. (2003), “What Is Sustainability, Anyway?”, World Watch, September/October 2003, supplied reading.
- University of South Australia, MPM416 sustainability teaching materials supplied for this synthesis.
Closing Perspective
Sustainability does not make project decisions easier. It makes the definition of value more complete.
That is precisely why it belongs in executive decision-making. It forces leaders to look beyond delivery efficiency, beyond the sponsor's boundary and beyond the immediate reporting period.
The strategic question is not whether a project carries a sustainability label. It is whether the organisation has understood the full value system well enough to make a defensible choice.