With energy costs on the rise, net zero goals in sight, and landlords facing increasing demands to enhance building performance, energy efficiency has become a top priority in the UK commercial property sector. For owners, asset managers, tenants and developers, improving performance ahead of stricter EPC regulations can help sidestep future compliance headaches while safeguarding long-term asset value.

In the UK, most commercial buildings already need an Energy Performance Certificate (EPC) when they're sold or let. According to the current Minimum Energy Efficiency Standards (MEES) in England and Wales, privately rented non-domestic properties typically must achieve at least an EPC rating of E.

However, it's clear that things are heading in a stricter direction. Government proposals have indicated a move towards EPC C by 2027 and ECP B by 2030 for rented commercial buildings. While these proposals aren't fully legislated yet, they indicate the likely path for years ahead.

For commercial property owners, the question is no longer if standards will tighten - it is how soon and how ready you are when they do.

Why UK building owners should take action now

Delaying action until regulations change can lead to unnecessary stress. As demand for labour and materials rises, retrofit costs are expected to climb, and the availability of contractors may dwindle, which could stretch out project timelines.

Buildings with lower ratings might find it increasingly difficult to attract tenants or renew leases, especially as businesses focus more on ESG performance. Additionally, inefficient properties risk losing value compared to their better-performing counterparts.

Taking action sooner allows for a more manageable approach to renovations, better budget control, and minimises disruption for tenants.

Review your current EPC rating

A great first step is to get a clear picture of your building's current status. Checking the latest EPC certificate and recommendation report can reveal immediate concerns, but if the assessment is a few years old, it might not accurately reflect current standards or performance.

An updated survey or a comprehensive energy audit can give you a better understanding of your building's efficiency, point out low-cost improvements, and identify larger upgrade needs. This also helps you gauge future compliance risks as regulations tighten.

Buildings rated D or E are likely to need attention if standards shift towards higher minimum thresholds.

Upgrade lighting systems

Upgrading lighting systems is one of the easiest and most cost-effective improvements you can make. Swapping out older fluorescent lights for LED options can drastically cut down on electricity usage, and adding motion sensors ensures lights are only on when needed.

Incorporating daylight dimming controls and zoned lighting systems can further enhance efficiency by adjusting lighting levels based on occupancy and usage. Smart scheduling also helps to minimise unnecessary energy consumption outside of regular operating hours.

Improving heating and cooling efficiency

HVAC systems can rack up costs in commercial buildings, especially in older ones. By upgrading outdated boilers or plant equipment, you can see immediate boosts in efficiency. For some buildings, air source heat pumps might be a great fit too.

Incorporating smart thermostats and building management systems can really help optimise performance. Plus, enhancing zoning to align with actual occupancy makes a big difference. Regular maintenance and insulating pipework and ducting also play a crucial role in ensuring everything runs smoothly and efficiently.

Upgrade insulation and building fabric

To enhance overall building efficiency, cutting down on heat loss is key. Upgrading insulation systems can deliver significant returns, depending on the building’s type and structure.

Improving windows with double or secondary glazing helps keep the heat in, and draught-proofing entrances, loading bays, and other critical areas reduces unnecessary energy loss. Sealing up air leaks throughout the building further boosts performance.

Install solar PV on suitable roofs

Solar PV is becoming more popular in commercial buildings, especially in warehouses and industrial units with spacious roofs. It can help lower daytime electricity costs, reduce dependence on grid energy, and support sustainability initiatives.

Depending on the system size and how the building is used, it might also enhance EPC performance while making the most of otherwise unused roof space.

Use smart energy monitoring

A lot of buildings waste energy simply because people can’t see how it’s being used. Smart monitoring systems can pinpoint patterns like energy use after hours, equipment that’s left running unnecessarily, and inefficient heating or cooling cycles.

They can also reveal peak demand spikes and identify underperforming or faulty systems. This kind of insight often leads to significant savings without needing a hefty investment.

Working with occupiers and tenants

The way occupiers behave can really influence how well a building performs overall. Simple things like turning off equipment that’s not in use, setting heating and cooling to sensible levels, and following smart fit-out practices can lead to better results.

In multi-let buildings, it’s crucial to get tenants on the same page regarding sustainability goals. Introducing green lease principles where it makes sense can help achieve more consistent energy performance across the entire property.

Focus on at-risk buildings in your portfolio

For landlords and asset managers, it’s wise to prioritise buildings that are most vulnerable to future regulatory changes. This usually includes properties rated EPC D and E, buildings nearing lease events, older assets with outdated services, and those with high energy costs.

Don’t forget about vacant buildings that need repositioning; they present a great chance to upgrade without disrupting current tenants.

Energy-efficient buildings are gaining an edge

In the UK market, occupiers are increasingly looking for buildings that come with lower running costs and solid sustainability credentials. Investors are also becoming more cautious about properties that might need major retrofitting down the line.

As a result, energy-efficient buildings are in a better spot to attract tenants, buyers, investors, corporate occupiers, and public sector organisations.

Boosting the efficiency of commercial buildings ahead of potential EPC tightening is all about future-proofing your assets, not just ticking compliance boxes. It helps cut operational costs, safeguard long-term value, and keep you competitive in a shifting market.

With government proposals hinting at stricter standards coming into play from 2027 and tightening further by 2030, taking a phased approach now is definitely easier than scrambling for upgrades later.

For specifiers and buyers, this shift is also ramping up demand for lighting, HVAC, insulation, roofing, glazing, solar, and smart building technologies - turning regulations into clear business opportunities.