SP11 is around the national average for energy efficiency.
3.9% of homes are rated F or G — above the national average of 2.9%.
When it comes to energy performance, SP11 in Test Valley manages an average of 71 out of 100, placing it around the national average. Compared to the national average of 67, that puts SP11 around the norm for England and Wales. The most common rating band is B, with 42.1% of homes rated A or B and 41.1% in the C or D bands. Meanwhile, 3.9% 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.
The area is characterised by houses. Around 64% of properties are owner-occupied and 19% are social housing. Gas central heating is the main fuel source for 64% 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 85 — a 14-point jump that would lift the typical rating to B. If you live in SP11 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: 85 (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 SP11?
Homes in SP11 have an average EPC rating of C, scoring 71 out of 100 for energy efficiency. That figure comes from 12,450 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 SP11 are rated F or G?
3.9% of homes in SP11 fall into the F or G bands — the lowest energy efficiency ratings. Nationally, the figure is 2.9%.
That means SP11 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.