PO17 is around the national average for energy efficiency.
4.8% of homes are rated F or G — above the national average of 2.9%.
When it comes to energy performance, PO17 in Winchester manages an average of 66 out of 100, placing it around the national average. Compared to the national average of 67, that puts PO17 around the norm for England and Wales. The most common rating band is C, with 15.5% of homes rated A or B and 64.8% in the C or D bands. Meanwhile, 4.8% 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.
The area is characterised by houses. Flats make up a notable 24% of homes here. Around 61% of properties are owner-occupied , while 22% are privately rented and 17% are social housing. Gas central heating is the main fuel source for 65% 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 66 to 80 — a 14-point jump that would lift the typical rating to C. If you live in PO17 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: 80 (rating C)
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 PO17?
Homes in PO17 have an average EPC rating of D, scoring 66 out of 100 for energy efficiency. That figure comes from 2,354 certificates issued across the district.
This is broadly in line with the national average of 67 — neither particularly efficient nor particularly wasteful. A D rating typically means higher-than-necessary heating bills, especially in older properties without adequate insulation.
What percentage of homes in PO17 are rated F or G?
4.8% of homes in PO17 fall into the F or G bands — the lowest energy efficiency ratings. Nationally, the figure is 2.9%.
That means PO17 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.