That's another fine MEES you've got me into As April 2027 and 2030 deadlines loom how realistic is meeting EPC C and B ratings for run-of-the-mill London offices? The definition of run-of-the-mill London Offices is more than a tad vague so we grabbed an example off Langham Estates stock in Margaret Street. The fourth floor at number 19 is on the market and currently has an EPC rating of D.  By 1st April 2027 this will need to be improved to C, and B by 2030.  The floor in this building must be typical of a fair amount of secondary office space in London. One would assume the Langham have already done the simple stuff like energy efficient lighting, heating controls and the likes so begs the question what would need to be done to get that certificate to C and B...