When sustainability makes projects better, not harder

Do we, as project managers, think of sustainability as another constraint? More regulation. More reporting. More scrutiny. More cost. Less freedom to deliver.

And yet many of us choose to read articles on sustainability precisely because we suspect the opposite might be true. We sense that the re-thinking required to meet environmental, social and ethical expectations can actually improve projects – not make them harder to deliver.

Projects are always delivered within constraints. Regulations, budgets, timescales, procurement rules, safety standards, equality duties – these are not optional extras. They shape what is possible. The question is not whether constraints exist, but whether we treat them as burdens to be endured or as prompts to think better.

Prosperity is not growth

Part of the difficulty lies in how prosperity is commonly understood. We make the mistake of treating prosperity as a synonym for economic growth, measured through aggregate indicators such as GDP per head or short-term financial return. These measures have their place, they’re relatively easy to measure, but they don’t tell the whole story – not for project success, and not for long-term success.

In practice, prosperity is better understood as economic sustainability: the ability of economies and organisations to remain productive, inclusive and resilient over time. That means continuity rather than boom-and-bust, access to opportunity rather than a focus on one benefit to the exclusion of all others and capability that strengthens rather than erodes.

Projects influence all three. Projects (and by extension project managers) shape labour markets, supply chains, skills, assets and communities. Even relatively small delivery decisions can have long-lasting economic effects – for better or worse.

Project management success is not project success

This brings us to an uncomfortable but important distinction. Project management success – delivering to time, cost and scope (and the many more constraints) – is not the same as project success – the contribution a project makes to organisational or societal outcomes.

Operating within budget matters. Spending money indiscriminately is not responsible. But equally, refusing to do something small that makes a disproportionate difference, simply because it would take a project marginally over budget, can be deeply counterproductive.

Sustainability often sits precisely in this gap. Measures that improve long-term performance, resilience, or reputation for the organisation may not fit neatly within short delivery horizons, even though they clearly serve the organisation’s wider interests. When ‘success’ is defined too narrowly, these opportunities are quietly lost.
This is not a failure of individual project managers. It is a consequence of how success is framed and measured.

What projects can – and cannot – do

Projects do not operate in isolation. Temporary work of all kinds – projects, programmes, change initiatives – delivers outcomes, while more permanent portfolio structures or organisation investment boards determine priorities and trade-offs. A single project cannot resolve systemic economic challenges on its own.

But projects still matter enormously. Design choices, procurement strategies, skills investment and delivery models all influence whether value is retained or extracted, whether capability is built or depleted, and whether benefits endure beyond handover.
Project managers might claim we can’t “control” benefits, but we can surely influence them.

Sustainability is no longer optional

In the UK, sustainability is becoming more explicit as a requirement from projects. Expectations around social value, ethical supply chains and environmental performance are now embedded in procurement and assurance frameworks. Sustainability is no longer a “nice to have” or a bolt-on; it is part of how success is judged.

This creates pressure, but it also creates opportunity. When sustainability requirements are treated as constraints to work within – rather than obstacles to work around – they can prompt better questions, better designs and better outcomes.

Making prosperity visible

One reason sustainability struggles in decision-making is that what is hard to see is easy to discount. Organisations rely on numbers not because they believe everything can be reduced to money, but because numbers create comparability and accountability.

This does not mean turning judgement into accounting. It means recognising that long-term value needs to be visible if it is to compete fairly with short-term cost. Frameworks such as Social Return on Investment explicitly address this challenge by making social and economic outcomes visible without pretending they are precise or uncontested. APM already provides guidance on SROI for those who wish to explore this further.

Used well, such approaches enable better conversations rather than closing them down.

What project professionals can do differently

For project professionals, this is less about adopting new tools and more about asking better questions:

What happens after delivery?
Who benefits, and who bears the costs?
Are we optimising for short-term efficiency or long-term capability?
What small changes could make a disproportionate difference?

Projects as stewards of prosperity

Sustainability does not make projects harder by default. When approached as an opportunity, it makes projects better – more resilient, more relevant and more likely to deliver lasting value.

Prosperity is not accidental. It emerges from deliberate choices, made visible and defended within real constraints. Projects sit at the point where those choices become real.

A longer article exploring the evidence, policy context and international case studies behind these arguments is published in the January edition of Project Management World Journal. A link will be added here once available.