Minimum Energy Efficiency Standards now apply in private rented properties.

From April 2016, no domestic private sector landlord has been able to refuse a tenant's request to make energy-efficiency improvements.

From April 2018, it also became illegal to let out a private rented property unless it met a minimum energy-efficiency standard (defined as EPC rating E). Landlords should meet the minimum standard or make full use of any financial assistance available for energy efficiency improvements. It will therefore not be possible to let properties with ratings of F or G.

Some exemptions can apply; however, doing nothing is not an option.  Landlords with properties with an EPC rating of F or G should refer to the guidance issued:

Landlords guidance:
https://www.gov.uk/government/publications/the-private-rented-property-minimum-standard-landlord-guidance-documents

Guidance on exemptions:
https://www.gov.uk/government/publications/private-rented-sector-minimum-energy-efficiency-standard-exemptions/guidance-on-prs-exemptions-and-exemptions-register-evidence-requirements

Enforcement of the regulations falls to the Local Authority who will have access to the exemption register. Whilst it is expected that the majority of landlords will comply with the regulations, the Local Authority is able to serve compliance notices on those who do not and potentially a financial penalty of up to £5000 per property. Full details of can be found in the Landlords Guidance.