For the 10,502 homes assessed in HP21, the average energy score comes in at 69 out of 100, placing it around the national average. The national average is 67, which means HP21 performs roughly in line with the rest of the country. The most common rating band is C, with 13.1% of homes rated A or B and 77.6% in the C or D bands. Meanwhile, 0.8% 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.

Houses make up the bulk of the housing in this district. Flats make up a notable 23% of homes here. Around 65% of properties are owner-occupied and 22% are social housing. Gas central heating is the main fuel source for 85% 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 69 to 82 — a 13-point jump that would lift the typical rating to B. If you live in HP21 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.