SO32 is around the national average for energy efficiency.
4.2% of homes are rated F or G — above the national average of 2.9%.
The 8,205 EPC certificates on record for SO32 paint a clear picture — the area averages 71 out of 100, placing it around the national average. The national average is 67, which means SO32 performs roughly in line with the rest of the country. The most common rating band is B, with 37.3% of homes rated A or B and 48.8% in the C or D bands. Meanwhile, 4.2% of homes sit in the F or G bands — the least efficient categories. In practical terms, a B rating indicates well-insulated homes with efficient heating — energy bills here tend to be well below average.
Houses make up the bulk of the housing in this district. Around 80% of properties are owner-occupied . Gas central heating is the main fuel source for 78% 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 71 to 84 — a 13-point jump that would lift the typical rating to B. If you live in SO32 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.
EPC Rating Distribution
Energy Efficiency Score
Potential score if all improvements made: 84 (rating B)
Recommended Improvements
Government funding may be available for some of these improvements. Check grants →
More data — property types, tenure & fuel
Property Types
Tenure
Main Fuel Types
Frequently asked questions
What is the average EPC rating in SO32?
Homes in SO32 have an average EPC rating of C, scoring 71 out of 100 for energy efficiency. That figure comes from 8,205 certificates issued across the district.
This is broadly in line with the national average of 67 — neither particularly efficient nor particularly wasteful.
What percentage of homes in SO32 are rated F or G?
4.2% of homes in SO32 fall into the F or G bands — the lowest energy efficiency ratings. Nationally, the figure is 2.9%.
That means SO32 has a higher-than-average proportion of poorly insulated homes. On the positive side, many of these properties may qualify for free improvements through government schemes like ECO4 or the Great British Insulation Scheme. Landlords should note that F and G rated properties cannot legally be rented out under current MEES rules.