For the 17,042 homes assessed in SO50, the average energy score comes in at 72 out of 100, placing it above the national average. The national average is 67, which means SO50 performs better than most areas. The most common rating band is C, with 26.5% of homes rated A or B and 66.7% in the C or D bands. Meanwhile, 1% 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 24% of homes here. Around 68% of properties are owner-occupied and 18% are social housing. Gas central heating is the main fuel source for 90% 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 72 to 83 — a 11-point jump that would lift the typical rating to B. If you live in SO50 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.