Minimum EPC Rating for Rentals | MEES London 2026

London landlords must currently hold an Energy Performance Certificate (EPC) rating of E or above to let a property under the Minimum Energy Efficiency Standards (MEES), unless a valid exemption is registered. The Government has consulted on raising that minimum to EPC C, proposed for new tenancies from around 2028 and all tenancies from around 2030, but this is a proposal under consultation, not law. This guide explains the current rule, the proposed change, the works that raise an EPC band, what they cost, and the penalties for letting a sub-standard property.

What is the current minimum EPC rating to let a property?

The current legal position is clear and has been in force for several years: a rented residential property in England and Wales must have an EPC rating of E or above to be let lawfully. This comes from the Minimum Energy Efficiency Standards (MEES) regulations. Since April 2020 the E minimum has applied to all existing residential tenancies, not just new ones, meaning a landlord cannot continue to let a property rated F or G without either improving it or registering a valid exemption. An EPC itself is required to market and let a property and is valid for ten years, rating energy efficiency from A (most efficient) to G (least efficient). For most London landlords the E minimum is not the binding constraint, much of London's housing stock already rates D or above, but older, solid-walled and poorly insulated properties can sit at F or G and need work before they can be let. The practical takeaway is to check the EPC rating and expiry on every property in your portfolio: an expired certificate or an F/G rating is a compliance problem that needs addressing before the next tenancy. Landlords can find more on letting compliantly on our /for-landlords page.

The proposed move to EPC C: what is actually changing?

The headline that worries most landlords is the proposed move from EPC E to EPC C, and it is important to separate what is proposed from what is law. The Government has consulted on raising the minimum energy efficiency standard for privately rented homes from EPC E to EPC C. The proposals that have been discussed would apply the higher standard to new tenancies first, from around 2028, and then to all existing tenancies from around 2030. These dates and the EPC C target are proposals under consultation and have been subject to revision, they are not yet enacted law, and the final standard, methodology and timescales could change before any requirement takes effect. What this means in practice is that landlords should plan for a higher standard without treating any specific date as fixed. Moving a property from a D or E to a C is a meaningful upgrade that takes planning and budget, so the prudent approach is to factor energy improvements into any refurbishment you are already doing rather than face a rushed retrofit later. A landlord replacing a kitchen or refurbishing a flat now can fold in insulation and heating improvements at marginal extra cost, which is far cheaper than returning to do them as a standalone job once a deadline is confirmed.

What works raise an EPC band?

Improving an EPC rating is about reducing the energy the building needs and how efficiently it is delivered, and a handful of measures do most of the heavy lifting. Insulation is the biggest lever. Loft insulation topped up to current depth is one of the cheapest and most effective measures. Cavity wall insulation, where the walls are suitable, makes a substantial difference; solid-wall insulation (internal or external) is far more expensive but is often the only way to lift an older solid-walled London property meaningfully. Heating improvements come next: an efficient modern boiler, better heating controls such as a programmable thermostat and thermostatic radiator valves, and in some cases a heat pump all raise the score. Glazing matters too, replacing single glazing with double glazing improves both the rating and comfort. Draught-proofing around doors, windows and floors is low-cost and worthwhile. Switching all lighting to LED is one of the cheapest band-boosting measures of all. The table below shows the measures that typically move an EPC band and indicative London costs. The right combination depends on the property: a flat with an old boiler and single glazing needs a different package from a solid-walled terrace with an uninsulated loft. We assess which measures will deliver the biggest rating gain for the budget as part of refurbishment planning, so the spend is targeted rather than scattered.

EPC improvement measure	Indicative London cost (2026)
LED lighting throughout	£100 – £400
Draught-proofing	£200 – £600
Loft insulation (top-up)	£400 – £1,200
Heating controls (thermostat, TRVs)	£300 – £900
Cavity wall insulation	£500 – £2,500
Double glazing (whole flat)	£4,000 – £10,000
Solid-wall insulation	£8,000 – £20,000+

Exemptions and the spending cap

Not every property can reach the required standard, and the regulations recognise this through a system of exemptions and a cap on what a landlord must spend. Where a property cannot reach the minimum standard even after the relevant improvements, or where improvements cannot lawfully or practically be made, the landlord may register an exemption on the national PRS Exemptions Register. Common grounds include the all-improvements-made exemption (the landlord has installed all relevant measures up to the cost cap and the property still falls short), the high-cost exemption, exemptions where a measure would devalue the property or where necessary third-party consent (such as from a freeholder, planning authority or tenant) has been refused. Exemptions are not automatic, they must be registered, are time-limited (typically lasting five years), and require supporting evidence. The cost cap matters because it limits the landlord's obligation. Under the current E standard the landlord is not required to spend beyond a set cap to reach compliance, and where that cap is reached without achieving the standard, the all-improvements-made exemption can apply. The proposals to raise the standard to EPC C have been discussed alongside a higher spending cap, but as with the standard itself, the final cap figure is a matter for the consultation outcome and is not yet settled. The practical point is that landlords are not expected to spend without limit, but they must either meet the standard or properly register a valid exemption, doing neither is the non-compliance the penalties target.

Penalties for letting a sub-standard property

MEES has teeth, and the penalties for letting a property below the minimum standard without a valid exemption are significant enough to make compliance the cheaper option. Local authorities enforce MEES and can issue financial penalties for breaches. Under the current regime, penalties for letting a sub-standard property are based on how long the breach has continued and the rateable value of the property, with maximum penalties running into several thousand pounds and, for longer breaches, up to a five-figure sum per property. Authorities can also publish details of the breach, a reputational penalty on top of the financial one. Registering false or misleading information on the Exemptions Register is itself a penalised offence. Proposals accompanying the move to EPC C have discussed substantially higher maximum penalties, but those figures are part of the consultation and not yet in force. The settled point is that letting an F or G rated property today, without a registered exemption, already exposes a landlord to enforcement. The cost of the works to reach E, or of registering a legitimate exemption, is almost always far lower than the penalty plus the lost rent of a property a landlord cannot lawfully let. Treating the EPC as a compliance asset, kept current and improved alongside other refurbishment, is the approach that avoids the penalty regime entirely.

Folding EPC works into a refurbishment

The smartest way to handle EPC compliance is rarely as a standalone job, it is to build the energy improvements into refurbishment work you are doing anyway, and the savings from doing so are real. Many EPC-improving measures overlap with ordinary refurbishment. If a property is being rewired or replumbed, the disruption to deal with insulation, heating controls and a new heating system is already there. If walls are open during a refurbishment, adding insulation costs a fraction of doing it as a separate project later. If windows are being replaced for condition, choosing efficient double glazing improves the rating at no extra installation cost. Redecorating after insulation works, rather than before, avoids paying for decoration twice. The principle is sequencing. A landlord facing both a tired property and a future EPC requirement should treat them as one project: plan the refurbishment to deliver the rating improvement as a by-product of work that needed doing anyway. This is how we approach landlord refurbishments, identifying which energy measures the property needs to hit, or move toward, the required band, and folding them into the schedule so the landlord pays once for access, scaffolding and making good. With the EPC C standard proposed but not yet fixed, this approach also hedges the uncertainty: a property improved now is ready whatever the final deadline turns out to be.

Frequently Asked Questions

What is the minimum EPC rating to rent out a property in 2026?

The current minimum is EPC E. Under the Minimum Energy Efficiency Standards (MEES), a residential property must have an EPC rating of E or above to be let lawfully in England and Wales, unless a valid exemption is registered. A proposal to raise the minimum to EPC C is under consultation but is not yet law, so E remains the legal requirement.

Is the EPC C requirement for rentals now law?

No. Raising the minimum standard to EPC C is a Government proposal under consultation, discussed for new tenancies from around 2028 and all tenancies from around 2030. The target and the dates have been subject to revision and are not yet enacted, so landlords should plan for a higher standard but treat no specific date as fixed. The current legal minimum remains EPC E.

What works improve a property's EPC rating?

The biggest levers are insulation (loft, cavity wall, and for solid-walled properties internal or external wall insulation), heating improvements (an efficient boiler and better controls), replacing single glazing with double glazing, draught-proofing, and switching to LED lighting. The right combination depends on the property; insulation and heating typically deliver the largest band gains, while LED and draught-proofing are the cheapest measures.

Are there exemptions from the minimum EPC standard?

Yes. Where a property cannot reach the standard after relevant improvements, or where improvements cannot lawfully or practically be made, the landlord can register an exemption on the PRS Exemptions Register. Grounds include the all-improvements-made (cost cap reached) exemption, high-cost exemption, devaluation, and refusal of necessary third-party consent. Exemptions must be registered with evidence and are time-limited, typically lasting five years.

What is the penalty for letting a property below the minimum EPC rating?

Local authorities enforce MEES and can issue financial penalties based on the length of the breach and the property's rateable value, running into several thousand pounds and, for longer breaches, up to a five-figure sum per property, alongside publication of the breach. Proposals tied to the EPC C move discuss higher maximum penalties, but those figures are not yet in force. The cost of compliance is almost always lower than the penalty plus lost rent.

MEES and Minimum EPC Rules for London Landlords (2026)