Looking at the energy data for EC3N, this City of London district scores an average of 73 out of 100, placing it above the national average. Compared to the national average of 67, that puts EC3N above the norm for England and Wales. The most common rating band is C, with 29.0% of homes rated A or B and 62.2% in the C or D bands. Meanwhile, 0.3% of homes sit in the F or G bands — the least efficient categories. In practical terms, a C rating suggests reasonably efficient homes, though there is still room for improvement on heating and insulation.

The area is characterised by flats. Flats alone account for 99% of all certificated properties — a distinctly urban profile. Around 55% of properties are owner-occupied , while 45% are privately rented . That high proportion of rental homes matters — landlords in EC3N must comply with the Minimum Energy Efficiency Standards (MEES), which currently require at least an EPC E rating. Properties rated F or G cannot legally be let. A significant share of homes here rely on electric heating, which tends to be more expensive per unit of energy than gas.

There is genuine room for improvement here. If every recommended upgrade were carried out, the average score could climb from 73 to 79 — a 6-point jump that would lift the typical rating to C. If you live in EC3N and want to reduce your energy bills, start with our guide to loft insulation — it is one of the most cost-effective upgrades you can make.