Understanding MEES (Minimum Energy Efficiency Standards)
Updated: Oct 18
Reviewed 18 October 2026. This article replaces our earlier policy summary.
What are MEES?
Minimum Energy Efficiency Standards apply to qualifying privately rented properties in England and Wales. Start by checking the latest EPC and whether the property falls within the regulations.
What is required today?
The current minimum is EPC E unless a valid exemption applies and is registered. Continuing domestic tenancies have been covered since April 2020 and non-domestic lettings since April 2023. An F or G rating does not itself prevent a sale.
Commercial property: the proposed 2031 standard
The government's June 2026 interim response proposes EPC B from 2031 for privately rented non-domestic buildings over 1,000 m², where cost effective. Smaller buildings are intended to remain at EPC E. The former EPC C milestone for 2027 will not proceed. Legislation and further threshold details are still required.
Rented homes: the announced 2030 policy
Government has announced an EPC C equivalent standard from 1 October 2030, using reformed EPC measures, with a planned £10,000 investment cap. These future arrangements need implementing legislation. They do not replace today's EPC E requirement or current £3,500 including VAT domestic improvement cap.
Plan improvements around your property
Gather insulation records, equipment details and refurbishment plans. For commercial premises, NRG can model measures individually and together before you request installation quotations. A predicted rating is subject to the installed specification and evidence. Actual bill savings need separate consideration.
Exemptions need evidence
Domestic and commercial exemptions have different conditions. Commercial cost effectiveness includes a seven year payback test. An EPC simulation alone does not prove an exemption. Check the applicable guidance before relying on one.
NRG supports landlords across Birmingham and the Midlands. Discuss MEES improvement modelling or call 0800 233 5669.
