MEES Regulations: What Landlords Need to Know
- Minimum EPC rating of E required to legally let a property
- Applies to all domestic and commercial tenancies in England & Wales
- Fines for non-compliance reach up to £5,000 per property
- Exemptions are available but must be registered before letting
- A future increase to a minimum C rating remains possible
What is MEES?
MEES stands for the Minimum Energy Efficiency Standards. Introduced under the Energy Efficiency (Private Rented Property) (England and Wales) Regulations 2015, MEES set a legal floor on how energy-inefficient a privately rented property can be before it is let to a tenant. The standards came into force for new tenancies on 1 April 2018 and were extended to cover all existing domestic tenancies on 1 April 2020.
The core requirement is straightforward: before granting a new tenancy, a landlord must ensure the property has a valid EPC showing a rating of E or above. Properties rated F or G on the A to G energy efficiency scale fall below the minimum standard and cannot legally be let without a registered exemption. The same principle applies at the point of a tenancy renewal.
MEES applies to domestic properties across England and Wales. Scotland has its own framework under the Private Residential Tenancy regime. Northern Ireland operates under separate legislation. In England and Wales, both the domestic private rented sector and non-domestic (commercial) properties are covered, though the rules and enforcement mechanisms differ between the two sectors.
The policy aim behind MEES is to reduce the number of cold, inefficient homes in the private rented sector, where tenants have historically had less control over the energy performance of their home than owner-occupiers. By requiring landlords to meet a minimum standard, the regulations are intended to drive targeted improvements across the least efficient parts of the housing stock.
Current MEES requirements (2025)
As of 2025, the minimum EPC rating for a privately rented domestic property in England and Wales is E. This has been the legal standard for all tenancies — new and existing — since 1 April 2020. Any property rated F or G that is currently being let is in breach of the regulations unless a valid exemption is in place.
The requirement applies at the point of granting a new tenancy or renewing an existing one. It does not require landlords to retrofit properties during a rolling tenancy if the rating was already acceptable when the tenancy started, though the extension to all existing tenancies in 2020 effectively removed any grace period for legacy lets.
Properties rated E or above meet the current MEES standard. F and G-rated properties cannot be let without a registered exemption.
It is worth noting that in September 2023, the then government confirmed it was dropping the proposed requirement to raise the domestic minimum to C by 2025. That proposal had caused significant uncertainty in the market. The scrapping of the 2025 deadline came as relief for many landlords, but it does not mean the policy direction has been abandoned. A minimum of C remains a stated long-term ambition under various net zero commitments, and the current government has signalled continued interest in improving rental sector efficiency.
For commercial (non-domestic) properties, the picture is different. MEES for commercial properties applied to new leases from 1 April 2018 and was extended to all existing leases from 1 April 2023, requiring a minimum EPC rating of E for all non-domestic lettings. The government has consulted on raising this to a minimum of B by 2030, which would represent a far more demanding upgrade requirement for commercial landlords.
MEES fines and penalties
Non-compliance with MEES carries real financial and reputational consequences. Local authorities are responsible for enforcing the domestic MEES regulations and have powers to investigate, issue penalty notices, and publish details of non-compliant landlords.
- Domestic fine (up to 3 months in breach): up to £2,000 per property
- Domestic fine (over 3 months in breach): up to £4,000 per property
- Publishing false or misleading exemption information: up to £1,000 per property
- Combined maximum domestic penalty: up to £5,000 per property
- Commercial properties (up to 3 months in breach): 10% of rateable value, with a minimum of £5,000 and a maximum of £50,000
- Commercial properties (over 3 months in breach): 20% of rateable value, with a minimum of £10,000 and a maximum of £150,000
- Publication on the non-compliance register: details remain public for 12 months
The public register is an enforcement tool that is often underestimated. A landlord's name and the address of the non-compliant property are published online and can be found by prospective tenants, letting agents, and mortgage lenders. For professional landlords managing a portfolio, this kind of reputational exposure carries additional risk beyond the fine itself.
It is also worth being aware that penalty notices can be issued by the local authority even if the tenancy has since ended or the property has been sold. The breach is assessed from the date the tenancy started on the non-compliant property, and fines can be backdated accordingly. If you are in doubt about whether your property meets the standard, it is far cheaper and simpler to arrange an EPC assessment now than to deal with enforcement action later.
MEES exemptions
There are five recognised categories of exemption under the MEES regulations. If a landlord believes their property qualifies, they must register the exemption on the PRS Exemptions Register (the Private Rented Sector Exemptions Register, maintained by the government) before the tenancy begins. A landlord cannot let an F or G-rated property and then register an exemption after a complaint or enforcement action has been initiated.
- All-improvements-made exemption (cost cap): The regulations include a cost cap, currently set at £3,500 inclusive of VAT. If all the recommended energy efficiency improvements listed on the property's EPC have been made, and the property still fails to reach E, the landlord can register this exemption. The rationale is that the landlord has done everything financially reasonable. This exemption is valid for five years, after which the landlord must reassess whether further improvements have become available or affordable.
- Consent exemption: Certain improvements require the consent of a third party — for example, a tenant (particularly relevant for solid wall insulation or loft insulation access), a superior landlord, or a mortgage lender. If consent has been genuinely sought and refused, the landlord can register a consent exemption. This applies for the duration of the tenancy with that specific tenant, or until the relevant third party's consent is no longer required.
- Devaluation exemption: If an independent surveyor certifies in writing that the installation of one or more recommended measures would reduce the market value of the property by 5% or more, the landlord can register a devaluation exemption for those specific measures. This exemption lasts five years. It requires an RICS-registered surveyor's written report; a landlord's own assessment is not sufficient.
- New landlord exemption (6 months): A landlord who becomes the landlord of a sub-standard property through inheritance or as a result of a court order, and who had no prior involvement in the tenancy, qualifies for a temporary 6-month exemption. This gives the new landlord time to either bring the property up to the required standard or register a longer-term exemption. The clock starts from the date on which the person became the landlord.
- Wall insulation exemption: This applies where an expert (such as a cavity wall insulation installer or structural engineer) has provided written advice that a recommended wall insulation measure is not suitable for the property — for example, because of the property's construction type, or because it would cause damage to the fabric of the building. This is particularly relevant for properties with non-standard construction such as solid brick, stone, or some timber-framed buildings.
Registering an exemption is straightforward. The PRS Exemptions Register is an online government portal where landlords submit supporting evidence for their exemption. Each exemption requires specific documentation: a cost cap exemption needs contractor quotes or invoices; a devaluation exemption requires the surveyor's written report; a consent exemption needs a copy of the refused consent. Exemptions are generally valid for five years, after which the landlord must reassess the property's situation.
It is important to be honest when registering. Providing false or misleading information on the exemptions register carries its own penalty of up to £1,000 per property, and local authorities have powers to investigate the validity of registered exemptions.
How to check your EPC rating
Every EPC issued in England and Wales since 2008 is lodged on the government's national EPC register at gov.uk/find-energy-certificate. You can search by postcode or by the property address. The register is free to access and shows the current rating, the potential rating, the date the certificate was issued, and when it expires. It also shows the full recommendations included in the report.
When checking your EPC, look at four things: the current energy efficiency rating (the A–G band you need for MEES compliance), the date of issue (EPCs are valid for 10 years from that date), the potential rating (to understand what improvements could achieve), and the list of recommended measures. If the certificate is approaching the end of its 10-year validity or the property has had significant works done since the last assessment, it is worth booking a new one.
If the certificate has expired, or if you have made improvements — such as installing a new boiler, adding loft insulation, or upgrading windows — since the last assessment, a new EPC will reflect those changes and may give you a better rating. A new assessment can also provide updated recommendations that are relevant to the property's current condition.
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How to improve your EPC rating
If your property is rated F or G, or even a low E, making targeted energy efficiency improvements is the most reliable route to MEES compliance and lower running costs. Some measures are relatively inexpensive and can have a noticeable impact on the rating; others require more capital but deliver lasting improvements to both the property's value and its energy bills.
- Loft insulation — Installing 270mm of mineral wool insulation in an uninsulated loft is one of the most cost-effective measures available. Typical cost: £300–£600. Impact: can add 3–10 points to the EPC score, depending on the property. Properties with no existing insulation benefit most.
- Cavity wall insulation — Most properties built between the 1920s and 1990s have cavity walls that can be filled with mineral wool or blown fibre. Typical cost: £400–£1,000. Impact: can add 4–8 points to the score. An installer or surveyor can confirm whether your walls are suitable before work begins.
- Boiler upgrade — Replacing an old G-rated boiler with a modern A-rated condensing boiler is a significant improvement. Typical cost: £2,000–£3,500 installed. Impact: one of the largest single improvements for gas-heated properties. A new boiler also benefits from the Boiler Upgrade Scheme if you are switching to a heat pump.
- Heating controls — Adding a room thermostat, a programmer, and thermostatic radiator valves (TRVs) to an existing heating system is inexpensive and immediately improves the EPC score. Typical cost: £150–£400. Impact: modest but meaningful, particularly for older properties with no controls.
- LED lighting — Replacing all remaining incandescent or halogen bulbs with LED equivalents. Typical cost: £30–£100 for a whole property. Impact: small individually but included in the SAP calculation. Worth doing regardless of the rating.
- Double glazing — Upgrading from single-glazed to double-glazed windows reduces heat loss significantly. Typical cost: £4,000–£10,000 for a full house. Impact: 2–6 points, depending on the proportion of single-glazed windows. For properties with some existing double glazing, the improvement will be more modest.
- Draught-proofing — Sealing gaps around doors, windows, floorboards, and letterboxes. Typical cost: £50–£300. Impact: small but worthwhile, especially for older Victorian and Edwardian properties with high air infiltration rates.
Before commissioning any works, it is worth getting an up-to-date EPC first. The recommendations on the certificate will list the improvements most likely to improve that specific property's rating, along with indicative cost ranges and the estimated improvement to the score. This gives you a clear roadmap rather than guessing what will make the most difference.
What is coming next: future MEES changes
The current minimum of E has been in place for all domestic tenancies since April 2020. The previous government's proposal to raise the domestic minimum to C by 2025 was abandoned in September 2023, citing cost of living concerns and the financial burden on landlords. That decision drew criticism from energy efficiency advocates but came as a relief to many in the private rented sector.
However, the policy direction has not fundamentally changed. The current government has retained net zero commitments and a stated ambition to improve the energy performance of the UK's housing stock, which remains among the least efficient in Western Europe. The 2025 C-rating target may have been scrapped, but the trajectory towards higher minimum standards over the course of the decade is widely expected to resume. Some analysts expect a new consultation on a revised domestic MEES roadmap within the next parliament.
For commercial properties, the timetable is more concrete. The government has consulted on raising the non-domestic MEES minimum to B by 2030, which would be a significant step-change for commercial landlords. The consultation closed and final policy is expected to be confirmed in due course. Commercial landlords with large property portfolios should be treating MEES compliance as a long-term capital planning issue, not a short-term compliance box-tick.
The practical message for domestic landlords is clear: even if the minimum remains at E for now, investing in efficiency improvements ahead of any future change is sensible. Properties at the upper end of the E band are better placed to absorb the cost of moving to C incrementally. Waiting for a regulatory deadline and then facing the cost all at once is the more expensive route. If you are planning a refurbishment or replacing a heating system anyway, it is worth doing the work to a standard that takes you comfortably into D or C territory.
How Kubo can help
If you are a landlord who needs to check your EPC rating, get an updated certificate, or understand what improvements are needed to meet MEES, Kubo is ready to help.
We carry out EPC assessments from £69, with same-day appointments available across London and the surrounding area. Our qualified Domestic Energy Assessors will assess your property, lodge the certificate on the national register within 24 hours, and can advise on what measures would be most effective for improving your rating. For landlords with multiple properties, we can coordinate portfolio assessments and provide clear guidance on which properties are at risk of failing the MEES standard.
Frequently asked questions
What is the minimum EPC rating for renting?
Under the Minimum Energy Efficiency Standards (MEES), all privately rented domestic properties in England and Wales must have a minimum EPC rating of E before a tenancy can begin. Properties rated F or G cannot be legally let unless a valid exemption has been registered on the PRS Exemptions Register.
When did MEES apply to existing tenancies?
MEES first applied to new tenancies from 1 April 2018. The rules were extended to cover all existing domestic tenancies from 1 April 2020, meaning that from that date no landlord could continue letting a property rated F or G without a registered exemption, regardless of when the tenancy started.
What happens if my property is rated F or G?
If your property is rated F or G, you cannot legally let it without a registered exemption. You should arrange energy efficiency improvements to bring the rating up to E or above, then obtain a new EPC confirming the improved rating. If you let the property without meeting the standard and without a valid exemption, you risk a fine of up to £5,000 per property and publication on the non-compliance register.
Can I still rent with an F or G rating?
Only if you have registered a valid exemption on the PRS Exemptions Register before the tenancy starts. Exemptions cover situations such as where all recommended improvements have been made up to the cost cap, where a tenant or lender has refused consent for works, or where improvements would cause a significant devaluation in the property value. Exemptions must be registered in advance and are generally valid for five years.
How much are MEES fines?
For domestic properties, fines can reach up to £5,000 per property (£2,000 for breaches of up to 3 months, £4,000 beyond that, plus up to £1,000 for a false exemption). The fine is recorded on a public non-compliance register for 12 months. For commercial properties, penalties are significantly higher — up to £150,000 based on rateable value for breaches exceeding 3 months.
Do MEES apply to HMOs?
Yes. Houses in Multiple Occupation are subject to MEES in the same way as single-let properties. Each HMO property must hold a valid EPC rating of E or above, or have a registered exemption. HMO licences and EPC requirements run alongside each other, and local authorities may check both during inspections.
What is the cheapest way to improve my EPC rating?
The most cost-effective improvements depend on your property's current condition, but draught-proofing doors and windows and switching all bulbs to LED are typically the cheapest starting points. Loft insulation is also highly cost-effective if the loft is accessible and uninsulated. For properties currently rated F or G, these measures combined can often achieve the jump to E without exhausting the £3,500 cost cap.
Do I need a new EPC to prove MEES compliance?
You need a valid EPC showing a rating of E or above. If your current EPC is still within its 10-year validity period and already shows E or better, you do not need a new one purely for MEES compliance. However, if you have made improvements since the last assessment and want to demonstrate a higher rating, or if the certificate has expired, you will need a new EPC assessment.
Are there any exemptions to MEES?
Yes, there are five main categories: the all-improvements-made exemption (all recommended measures installed up to the £3,500 cost cap); the consent exemption (tenant, lender, or superior landlord refused permission for works); the devaluation exemption (surveyor certifies a 5% or more value reduction); the new landlord 6-month exemption; and the wall insulation exemption (where specific insulation types are structurally unsuitable). All exemptions must be registered on the PRS Exemptions Register before letting.
Will the minimum EPC rating increase to C?
The previous government's proposal to raise the domestic minimum to C by 2025 was formally scrapped in September 2023. As of 2025, the minimum remains at E. However, the government has long-term net zero commitments and a future increase to C or D remains possible under future policy. Landlords should treat the current E minimum as a floor, not a permanent target, and consider planned improvements with this direction of travel in mind.
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