/Insights

2026 EPC Reforms and MEES Changes: What They Mean for Commercial Property Owners

As the UK government overhauls its energy performance regulations, commercial landlords must prepare for significant changes to the Energy Performance Certificate (EPC) system and the Minimum Energy Efficiency Standards (MEES) from 2026 onward. These reforms will impact how commercial properties are assessed, managed, and legally let across England and Wales.

What is changing: EPC reform for commercial properties

Multi-metric EPCs replacing single ratings

From 2026, EPCs for commercial buildings will likely shift away from the traditional A–G scale toward a multi-metric model. New metrics may include:

Fabric Efficiency: How well the building envelope (insulation, glazing, etc.) retains heat.
Building Services Performance: Efficiency of Heating, Ventilation and Air Conditioning (HVAC) systems and lighting.
Operational Energy Use: Real-world energy consumption based on building use.
Carbon Emissions: A greater focus on actual CO₂ output.
Energy Costs to Occupiers: Likely to become a reportable metric for transparency.

These changes are intended to make EPCs more accurate and reflective of a building’s actual performance, rather than just theoretical modelling.

Commercial EPC methodology review underway

The UK Government is reviewing the Simplified Building Energy Model (SBEM) methodology used for non-domestic buildings. Updates to this model will align with the wider decarbonisation goals of the UK, potentially incorporating:

Dynamic operational data (e.g. smart meters)
Improved granularity for mixed-use or complex commercial buildings
More tailored recommendations for improvements

Expect the revised methodology to be rolled out gradually from mid to late 2026.

EPC validity periods

Validity is likely to drop from 10 to 5 years and maintained for the life of the property, so once expired, they will need to be renewed, whether or not there is a trigger imminent (sale, new or renewing lease).

How will the 2026 EPC reforms affect MEES for commercial properties?

Likely uplift from EPC Band E to Band B

Currently, commercial landlords cannot grant a new lease (or continue an existing one) if the property has an EPC rating below E, unless exempt. Under proposals being considered:

The minimum EPC requirement may rise to Band B by 2030.
This will apply to all commercial lettings, not just new leases.
The government is also considering ongoing EPC compliance, not just at the point of letting.

You can read the current MEES guidance on gov.uk and monitor updates to the Energy Efficiency (Private Rented Property) (England and Wales) Regulations 2015.

MEES exemptions

Commercial landlords will still be able to apply for exemptions in specific cases, including:

Where third-party consent (e.g. from freeholders or tenants) cannot be obtained.
If the building is listed or protected and energy improvements would damage its character.

However, exemption registers will be more strictly monitored and may have shorter durations.

When will these commercial MEES and EPC changes happen?

Milestone	Expected Timeline
EPC Methodology Reform (SBEM)	Mid–Late 2026
New EPC Metrics Go Live	Late 2026
MEES Applies to All Leases Grade B	By 2030

There will be transitional periods and grace windows for compliance, but landlords are advised to plan well ahead, particularly for larger portfolios.

What should commercial landlords do now to prepare for 2026 EPC changes?

1. Audit your portfolio

Identify properties at risk of falling below EPC Band B. Pay special attention to:

Older stock
Offices with outdated HVAC
Industrial units with poor insulation

2. Plan energy efficiency upgrades

Focus on high-impact, building services first improvements:

LED lighting and smart controls
Electric heat pump installations (where viable)
Electric air conditioning splits (for winter space heating and summertime cooling)

3. Budget and forecast

Work improvements into your capex planning now, especially for assets with lease events approaching.

4. Engage with a qualified EPC producer

Commission early EPC reviews under the existing scheme to determine what steps would be needed to hit Band C. Call Vital today on 0345 111 7700 to help with the assessment of all your commercial properties.

5. Track policy developments

Regulatory guidance is still evolving. Stay updated through sources like:

Gov.uk MEES guidance
Department for Energy Security and Net Zero (DESNZ)
Building Regulations portal
Local authority planning and retrofit initiatives
Industry bodies such as the Royal Institution of Chartered Surveyors (RICS), British Property Federation (BPF), or UK Green Building Council (UKGBC)

Frequently asked questions about 2026 EPC reforms and MEES

What is the difference between the current EPC and the 2026 multi-metric EPC?

The current EPC uses a single A–G rating based on theoretical energy performance. The 2026 multi-metric EPC will assess fabric efficiency, building services, operational energy use, carbon emissions, and energy costs separately, providing a more accurate picture of actual building performance.

When do I need to upgrade my commercial property to EPC Band B?

The proposed MEES uplift to Band B is expected by 2030 and will likely apply to all commercial lettings, not just new leases. Landlords should plan upgrades well in advance, particularly for properties currently rated Band C, D, or below.

Will all commercial properties need to comply with the new MEES standards?

Most commercial properties will need to comply, but exemptions will remain available for listed buildings, cases where third-party consent cannot be obtained, and other specific circumstances. Exemption registers will be monitored more strictly.

How long will a commercial EPC be valid after the 2026 reforms?

EPC validity is likely to drop from 10 years to 5 years. Once expired, EPCs will need to be renewed regardless of whether there is a property transaction, new lease, or lease renewal imminent.

What improvements should I prioritise to meet Band B requirements?

Focus on building services improvements first: LED lighting with smart controls, heat pump installations, and electric air conditioning splits. These typically offer the best return on investment and have the greatest impact on EPC ratings.

Summary: 2026 EPC and MEES reform, a turning point for commercial property

The upcoming EPC and MEES reforms are part of the UK’s broader net-zero by 2050 strategy. For the commercial property market, this represents a major regulatory and operational shift. While final details are still being confirmed, landlords who act early to assess risk and upgrade assets will not only ensure compliance, but also protect the long-term rental value, marketability, and resilience of their properties.