A report commissioned by ¾«¶«Ó°ÊÓ says a 2.5% increase in rents could make new-build offices 25% more energy efficient than the current version of Part L of the ¾«¶«Ó°ÊÓ Regulations.

The report is in the Learning the New Rules supplement, published with this week’s ¾«¶«Ó°ÊÓ, and prepared by cost consultant Davis Langdon with service Hoare Lea and property consultant Cluttons.

It lists a range of measures that developers can incorporate into new buildings to improve ratings when energy certification is introduced.