Every real estate business has an ESG target: net zero by a given year, a BREEAM or WELL rating, or a GRESB score to defend. What fewer have is a reliable way of knowing how their buildings are performing against those targets. That gap is increasingly a data problem, not a sustainability problem.
Most portfolios have a net zero pathway or certificationtarget. Fewer can say what an individual asset consumed last month, how thatcompares to last year, or which buildings are underperforming. Targets haveoutpaced the ability to measure progress, creating a credibility gap in ESG delivery.
The instinct is often to reach for more technology. Butsensors, smart systems and digital twins only add value if they answer theright questions. Owners first need to know what they need to measure, why itmatters and how they will use the data.
Start with the outcome, then identify the data needed tosupport it. That could mean energy intensity for valuation, wellbeing metricsfor leasing, or disclosures required by GRESB, CDP or other frameworks. When donewell, data collection becomes more than compliance and helps to protect andenhance asset value.
Many assets still rely on manual meter readings, paperrecords and fragmented systems, creating gaps and inconsistencies acrossportfolios. Before investing in sophisticated technology, owners needvisibility of the fundamentals: energy, water, occupancy and condition. Submetering,smart meters and leak detection can provide the asset-level visibility neededto identify waste and target interventions. As buildings become more connected,cybersecurity must also form part of the strategy.
A dashboard full of data changes nothing. Its value lies inidentifying where a building is underperforming, understanding why and decidingwhat to do next.
Too often, organisations move from data collection toreporting without using it to improve performance. Buildings should respond toreal occupancy, demand and performance rather than fixed assumptions. Theobjective must shift from monitoring performance to optimising it.
Delivery means prioritising capital and retrofit programmeswhere they will generate the greatest return. Energy improvements can reduceoperating costs and support asset value, while better air quality and comfortcan strengthen occupier experience, productivity and retention.
Proof is not a certificate or one-off audit. It isconsistent, good-quality data demonstrating performance against the targetsestablished at the outset. Over time, that evidence supports investor scrutiny,ESG disclosures and, ultimately, the credibility of a net zero pathway.
None of this requires every building to become a digitaltwin. It requires owners to treat data as they treat capital: define what itneeds to achieve, understand what is available, use it to prioritise action,deliver against that plan and prove the outcome.
ESG has become a data discipline. The businesses thatrecognise that will be able to answer the question investors increasingly ask: showme the proof.
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