MEES 2030: Which Commercial Properties Could Become Unlettable?

The UK commercial property sector is approaching one of the most significant regulatory changes in decades.

Under the current Minimum Energy Efficiency Standards (MEES), commercial properties with an Energy Performance Certificate (EPC) rating of F or G cannot legally be let unless a valid exemption is in place. However, proposed changes to MEES regulations are expected to tighten substantially over the next five years.

By 2030, the government’s target is for all rented commercial properties to achieve a minimum EPC rating of B.

For commercial landlords, asset managers, and property investors, the conversation is no longer about whether regulations will change. It’s about which assets are at risk of becoming unlettable, stranded, or significantly devalued under MEES 2030.

What Are the Current MEES Regulations for Commercial Property?

All rented commercial properties must currently achieve a minimum EPC rating of E. Buildings rated F or G cannot legally be leased unless exempt.

Under current MEES legislation:

• All rented commercial properties must have a valid EPC
• Properties must achieve a minimum EPC rating of E
• Buildings rated F or G cannot legally be leased unless exempt

These rules apply to:

• New leases
• Lease renewals
• Existing leases (since April 2023)

For many property owners, compliance has so far involved relatively minor improvements. The challenge ahead under MEES 2030 is very different.

What Will Change Under MEES 2030?

The proposed MEES 2030 regulations will require EPC C by 2027 and EPC B by 2030 for all rented commercial properties. This represents a major shift in compliance expectations and capital expenditure requirements.

Although final legislation is still progressing, the government has clearly signalled the direction of travel for commercial EPC compliance:

• EPC C by 2027 (proposed interim milestone)
• EPC B by 2030 (proposed minimum standard)

For large parts of the UK commercial property market, MEES 2030 represents a major shift. A significant proportion of existing office, industrial, and mixed-use stock currently sits below EPC B. This means many assets could require substantial upgrades within a relatively short timeframe.

Which Commercial Properties Are Most at Risk?

1. EPC D and E Rated Commercial Buildings

Properties currently rated EPC D or E are among the highest-risk categories under MEES 2030. While compliant today, they will likely become non-compliant under future regulations.

Many landlords underestimate the scale of work required to move a property from EPC D to EPC B. Improvements become progressively more complex and expensive as ratings increase.

Typical upgrade requirements include:

• Heating, Ventilation, and Air Conditioning (HVAC) replacement
• Improved insulation and fabric performance
• Light Emitting Diode (LED) lighting upgrades
• Smart building controls
• Renewable energy integration

2. Secondary Office Buildings

Older office stock faces particular challenges meeting MEES 2030 compliance due to outdated systems and poor thermal performance. In secondary locations, retrofit costs may exceed potential rental uplift, creating difficult investment decisions.

Common issues include:

• Outdated heating and cooling systems
• Poor thermal performance
• Inefficient lighting
• Limited building management systems

3. Multi-Let Commercial Properties

Multi-let assets are especially difficult to upgrade due to split responsibilities, access limitations, and coordination challenges. For these buildings, the risk is not only technical but also logistical and financial.

Challenges often include:

• Split responsibilities between landlord and tenants
• Access limitations
• Reshapeion during works
• Difficulty coordinating improvement programmes

4. Older Industrial and Logistics Assets

While modern logistics developments often incorporate energy efficiency by design, older industrial stock may require significant intervention. As occupiers place greater emphasis on Environmental, Social, and Governance (ESG) performance and energy costs, inefficient industrial assets may become increasingly difficult to lease.

Common issues include:

• Poor roof and wall insulation
• Inefficient lighting systems
• High operational energy demand
• Large floorplate upgrade costs

What Does “Unlettable” Actually Mean?

Commercial properties failing to meet the minimum EPC threshold under MEES 2030 cannot grant new leases or renew existing ones. This creates the risk of stranded assets: buildings that remain physically usable but commercially restricted.

If a commercial property fails to meet the minimum EPC threshold under MEES 2030 regulations:

• New leases cannot be granted
• Existing leases cannot be renewed
• Asset liquidity may reduce significantly
• Financing and refinancing could become more difficult

For investors and landlords, this has direct implications for:

• Rental income
• Asset valuation
• Occupier demand
• Portfolio performance
• Exit strategy

The Real Cost of EPC Improvements

EPC improvements are not linear: moving from C to B can require substantially more investment than moving from E to D. The closer a building gets to EPC B, the more technically challenging and expensive improvements tend to become. This is why early planning is critical.

One of the biggest misconceptions around MEES compliance is that EPC improvements are linear. In reality:

• Moving from EPC E to D may involve relatively modest upgrades
• Moving from EPC C to B can require substantial capital investment

What Should Commercial Landlords and Asset Managers Do Now?

Audit Your Portfolio

Begin by identifying current EPC ratings, expiry dates, and high-risk assets across your portfolio. Properties currently rated D or E should be reviewed as a priority to assess MEES 2030 readiness.

Start by identifying:

• Current EPC ratings
• Expiry dates
• High-risk assets
• Upcoming lease events

Model Upgrade Scenarios

Assess what improvements are required to achieve EPC C or B, along with estimated costs and potential impact on asset value. Our Vital EPC Plus service provides detailed decarbonisation reports to model these scenarios.

Landlords should assess:

• What improvements are required to achieve EPC C or B
• Estimated upgrade costs
• Potential impact on asset value and rental income
• Payback periods and operational savings

Prioritise High-Risk Assets

Focus attention on buildings with lease events before 2030, older secondary stock, and assets with poor energy performance. These properties face the greatest obsolescence risk.

Focus attention on:

• Buildings with lease events before 2030
• Older secondary stock
• Assets with poor energy performance
• Properties likely to face obsolescence risk

Align MEES Strategy with Capital Planning

Rather than over-investing too early, many landlords are taking a phased approach by aligning upgrades with lease cycles and planned refurbishment works. A strategic approach can help minimise reshapeion while protecting long-term asset value.

Many landlords are aligning upgrades with:

• Lease cycles
• Planned refurbishment works
• Capital expenditure programmes
• Occupier changeovers

MEES Compliance Is Now a Value Issue

MEES 2030 is no longer simply a compliance exercise but a defining factor in commercial property value, leasing potential, and investment performance. As 2030 approaches, the divide between compliant and non-compliant commercial property is expected to widen significantly.

For landlords, asset managers, and commercial property owners, the priority is clear:

• Understand your exposure now
• Develop a realistic upgrade strategy
• Avoid holding stranded assets
• Protect long-term asset performance

At Vital Direct, we help commercial property owners and asset managers navigate MEES compliance, EPC improvement strategies, and building performance planning across complex portfolios. Our services include Streamlined Energy and Carbon Reporting (SECR), Energy Savings Opportunity Scheme (ESOS) compliance support, Fire Risk Assessments, and Asbestos Surveys. Contact us today on 0345 111 7700 and let us help you retain high-value assets.