London landlords cannot let a property rated F or G without a registered exemption, because the minimum in force is band E. The proposed minimum rises to band C by 1 October 2030, subject to a cost cap of £10,000. The share of London EPC certificates below band C differs from borough to borough, and the London local guide sets out each borough's figure from the March 2026 extract of the EPC register.
What EPC Rules Apply to London Landlords?
The Minimum Energy Efficiency Standards (MEES), set by SI 2015/962, apply uniformly across England and Wales. There are no London-specific EPC rules. Landlords in Hackney and Harrow face exactly the same legal framework as landlords in Manchester or Bristol.
Under the current regulations, you must improve a property rated F or G to band E, or register an exemption, before you enter into a new tenancy. Letting a property rated F or G without a registered exemption carries a civil penalty, and the maximum per property is £5,000 in total. The cost cap that limits what landlords must spend to reach band E is £3,500 inclusive of VAT.
In January 2026 government said it intends to raise the minimum to band C from 1 October 2030. That is not yet law. Parliament must pass primary legislation and lay a statutory instrument before it takes effect, with that process targeted for 2027. Until a statutory instrument is laid, the legal minimum remains band E.
For the full regulatory picture, see our MEES regulations guide.
London Borough EPC Compliance Data
The share of EPC certificates below band C differs a lot between London's authorities. The London local guide lists all 33 (the 32 boroughs and the City of London) with their certificate counts, read from the March 2026 extract of the EPC register. Those figures count certificates, not homes, and cover every tenure. The same MEES rules apply in every borough.
Why London Properties Are Harder to Upgrade
London rental stock presents specific structural challenges that add complexity to EPC improvements.
Solid walls. Many older London homes have solid brick walls, and cavity fill is not an option for them. The sample EPC in GOV.UK's landlord guidance lists £4,000 to £14,000 for internal or external wall insulation (indicative). Internal wall insulation is an alternative where external wall insulation (EWI) is blocked, but it reduces floor area.
Conservation areas and listed buildings. Parts of London are conservation areas, and some London homes are listed. External alterations including EWI may require planning permission, which can be refused. Where it is refused, a landlord may register a third-party consent exemption on the PRS Exemptions Register, and GOV.UK's guidance gives a planning department decision notification as evidence. See EPC exemptions for listed and heritage properties and third-party consent exemptions for freeholder refusal.
Leasehold flats. Improvements to the roof, external fabric, or shared plant room of a leasehold flat can need the freeholder's consent. If consent is refused, the landlord may register a third-party consent exemption, with evidence that consent was sought and refused. The full exemptions guide covers the process.
Budgeting and the Cost Cap for London Landlords
No source publishes London-specific prices for individual measures, so this guide does not quote any. For indicative costs, use our cost calculator, which shows the GOV.UK sample EPC figure where one exists and labels every other figure as our own assumption. A formal quote from an accredited installer is required before relying on any cost for cost cap purposes.
The current legal cost cap is £3,500 inclusive of VAT. If the cheapest combination of measures that would bring a property to band E costs more than £3,500, you can register a cost cap exemption and continue letting legally below band E. The proposed 2030 cap of £10,000 applies to band C only when and if the legislation passes.
For a full breakdown of national upgrade cost ranges, see our cost-to-improve guide.
Grants for London Landlords
ECO4 funds insulation and heating upgrades. In a private rented home it covers only properties rated E, F or G, and the package must include solid wall insulation, first-time central heating, a district heating connection or renewable heating (Ofgem ECO4 guidance v4.0). Replacing a boiler is generally not eligible. There is no set amount per property: the energy supplier decides how much to fund. The household must include a Help to Heat Group member, or be one the council declares eligible under ECO4 Flex, so ask your borough whether it does. ECO4 runs until 31 December 2026 (Ofgem). See our ECO4 landlord guide.
Boiler Upgrade Scheme (BUS) provides £7,500 towards an air source or ground source heat pump. GOV.UK says you can apply if you own the property, including a property you rent out to tenants, and are replacing a fossil fuel heating system. No new vouchers are issued after 31 December 2029 (SI 2022/565 reg 15(7)(c), as amended by SI 2026/390). See our BUS guide for landlords.
When Does a London Property Need an EPC?
GOV.UK's MEES landlord guidance says that if the property you let has been marketed for sale or let, or modified, in the past 10 years, it will probably be legally required to have an EPC. Before you enter into a new tenancy, a property rated F or G must be improved to band E or have a registered exemption.
The assessor sets the fee for a new EPC, so get more than one quote. The EPC assessment cost guide covers what moves the price.
Frequently Asked Questions
Q: Do London landlords face stricter EPC rules than landlords elsewhere in England? A: No. MEES applies uniformly across England and Wales under SI 2015/962. London has no additional city-level EPC legislation. The rules in Wandsworth are the same as in Leeds.
Q: My London property is in a conservation area. Does that exempt it from EPC requirements? A: Being in a conservation area does not automatically exempt a property. An exemption may apply if the works needed to reach band E (or band C, once proposed law) would alter the external appearance and planning permission for those alterations is refused. You must register the exemption on the PRS Exemptions Register before letting the property; you cannot register retrospectively.
Q: What is the EPC band C deadline for London landlords? A: The proposed date is 1 October 2030, the same as for all English and Welsh landlords. This is not yet law. In January 2026 government said it intends this date; Parliament must pass an Act and a statutory instrument before it has legal force.
Q: Which London borough has the lowest proportion of properties below band C? A: Tower Hamlets has the lowest share of certificates below band C of London's 33 authorities in the March 2026 extract of the EPC register. The London local guide lists every authority.
Q: Can I register a cost cap exemption if external wall insulation is too expensive? A: Yes. If the total cost to reach band E using the cheapest qualifying measures exceeds £3,500 inclusive of VAT, you can register a cost cap exemption. It lasts five years and must be renewed. The proposed £10,000 cap for band C compliance has not yet passed into law.
Q: Are London landlords eligible for the Boiler Upgrade Scheme? A: Yes. BUS pays £7,500 towards an air source or ground source heat pump and is open to people in England and Wales. GOV.UK says you can apply if you own the property, including a property you rent out to tenants.