Renting out a period property with a single-story extension? You’ll want to read this.
The energy performance of rental properties has become a major focus for landlords, driven by both upcoming legislative changes and a growing tenant demand for energy-efficient homes. In this shifting landscape, a recent and subtle change to Energy Performance Certificate (EPC) guidance is a critical development that savvy landlords should be aware of. This change, which may seem minor at first, presents a significant opportunity to re-evaluate your property’s energy rating and strategic position in the market.
Previously, many single-story extensions on period properties were assessed with the assumption that their roof cavities had no insulation, which is often the reality for older structures. However, new guidance for EPC assessors now requires them to assume that these extensions have 100mm of insulation. This is a dramatic shift from historical practice. While this new assumption may not reflect the physical reality of every property, it has a powerful impact on the calculated EPC score.

This update means that many period properties with single-story extensions will now be able to achieve a higher energy efficiency rating than they would have under the old rules. For landlords, this is a game-changer. An improved EPC rating can directly translate to a more attractive and marketable property. With the government’s focus on raising the Minimum Energy Efficiency Standards (MEES), a better rating can help secure your compliance for years to come, potentially saving you from costly and disruptive upgrade work.
While this new guidance is a benefit, it’s also a reminder of the evolving nature of property regulations. The most proactive step a landlord can take is to review any existing or expired EPCs for properties that fit this description. The new methodology could significantly improve your rating, making it an ideal time to get a re-assessment. This is a chance to leverage a regulatory change to your advantage, enhancing your property’s value and appeal without necessarily undertaking physical renovations.
In the long run, this change highlights the importance of staying informed about every nuance of property legislation. While an improved EPC rating is a welcome development, a truly forward-thinking strategy involves more than just a certificate. It involves understanding the market, anticipating future changes, and ensuring your properties not only meet but exceed the expectations of modern tenants. This new guidance is more than just a technicality; it’s a strategic opening to improve your property portfolio and demonstrate your expertise and commitment to a high-quality, compliant rental business.
Key Takeaway
The change in EPC guidance offers a significant opportunity for landlords with period properties. By reassessing your EPC, you may find your property’s rating has improved, positioning you ahead of future regulatory requirements and making your property more appealing to tenants. Don’t miss this chance to turn a regulatory update into a strategic advantage.









