Looking at the energy data for SE18, this Greenwich district scores an average of 70 out of 100, placing it around the national average. Compared to the national average of 67, that puts SE18 around the norm for England and Wales. The most common rating band is C, with 21.4% of homes rated A or B and 71.0% in the C or D bands. Meanwhile, 0.9% 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 61% of all certificated properties — a distinctly urban profile. Around 41% of properties are owner-occupied , while 28% are privately rented and 31% are social housing. Gas central heating is the main fuel source for 76% of homes, which is typical for urban areas across England.

There is genuine room for improvement here. If every recommended upgrade were carried out, the average score could climb from 70 to 80 — a 10-point jump that would lift the typical rating to C. If you live in SE18 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.