Buildings: The Keystone of Sustainability—Why Business Models Must Shift

In a post‑pandemic world, we have a rare chance to rebuild our built environment in a way that prioritises sustainability and resilience.

The World Economic Forum recently highlighted that buildings could be the linchpin of a sustainable future. Yet, the sector remains a major driver of global carbon, accounting for roughly 40 % of worldwide energy consumption and 33 % of greenhouse‑gas emissions.

Tom Harmsworth, Managing Director UK at WeMaintain, argues that the challenge lies not in the technology itself but in how we allocate capital and design business models around building operations.

How the Pandemic Re‑shaped the Conversation

During lockdowns, our air improved, wildlife returned to urban parks, and people gained a newfound appreciation for nature. That collective experience has sharpened the urgency of the climate crisis and sparked a genuine debate about whether we will revert to old habits or seize this moment to adopt greener practices.

In Europe alone, there are over 220 million buildings, with three‑quarters classified as energy‑inefficient. The prevailing model—where operating‑expenditure (Opex) and capital‑expenditure (Capex) are focused on extending the lifespan of equipment—has unintentionally encouraged a form of planned obsolescence, similar to the rapid turnover seen in consumer electronics.

While maintaining high equipment quality is important, the environmental and economic costs of continually upgrading rather than replacing are significant. The built world has long been comfortable with this status quo, but the climate crisis demands a cultural shift.

Turning Data into Action with IoT

Internet‑of‑Things (IoT) solutions offer a powerful antidote. By deploying sensors that track temperature, humidity, motion, and more, building managers can collect real‑time data and instantly adjust conditions to optimise comfort and efficiency.

Smart buildings can autonomously dim lights when rooms are empty, lower heating in unoccupied zones, and predict component failures before they occur—essentially turning preventive maintenance into a data‑driven, continuous process.

For example, a lift that begins to show early signs of wear can be repaired before a breakdown, ensuring occupants experience seamless service and building owners avoid costly emergency repairs. Though the shift may challenge entrenched business models, the long‑term savings and operational reliability are compelling.

Some experts suggest that targeted state intervention—such as tax incentives for maintenance companies—could accelerate the adoption of these practices. Nevertheless, the urgency of the climate crisis calls for decisive, industry‑wide transformation.

Beyond sustainability, modernising building operations will provide a more reliable, comfortable experience for occupants and unlock significant cost efficiencies for owners. The post‑pandemic era offers a pivotal opportunity to rebuild our cities and homes for a greener, more resilient future.

Author: Tom Harmsworth, Managing Director UK, WeMaintain.