A new report from The Mortgage Works (TMW) has revealed a significant knowledge gap among landlords about Energy Performance Certificate (EPC) requirements—threatening progress towards energy efficiency in the private rented sector (PRS).

According to the survey of 1,000 landlords:

• 62% didn’t know it’s a legal requirement to hold an EPC

• Only 33% correctly identified the 2030 deadline for achieving a minimum EPC rating of C

• A staggering 73% are unaware of the proposed regulatory timeline

With just five years until the expected deadline, the findings raise concerns that many landlords will be unprepared and unable to comply, risking supply shortages and increased rents.

“Landlords Need Support – or Tenants Will Pay the Price”

Dan Clinton, Head of Buy-to-Let at TMW, said:

“Improving energy efficiency matters—but landlords face huge logistical and financial challenges. Without proper guidance, funding, and time, we risk pushing them out of the sector.”

Key survey insights:

• 55% want guidance on cost-effective upgrades

• 53% seek clarity on the upcoming regulations

• 45% of D-rated landlords plan to upgrade; 28% plan to sell

• 63% are unsure of upgrade costs

• Average cost estimate: £6,632 per property

To fund improvements, 37% plan to raise rents, and 38% will use personal savings.

With 54% delaying works until regulations are finalised, TMW warns that a rushed rollout could overwhelm supply chains and shrink PRS capacity.