SE17 is above average for energy efficiency — better than most areas in England and Wales.
Based on 13,346 Energy Performance Certificates, SE17 in Southwark has an average EPC score of 73 out of 100, placing it above the national average. To put this in context, the national average sits at 67. The most common rating band is B, with 35.9% of homes rated A or B and 58.8% in the C or D bands. Meanwhile, 0.6% 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.
Most of the housing stock here consists of flats. Flats alone account for 80% of all certificated properties — a distinctly urban profile. Around 33% of properties are owner-occupied , while 31% are privately rented and 36% are social housing. Gas central heating is the main fuel source for 61% 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 73 to 79 — a 6-point jump that would lift the typical rating to C. If you live in SE17 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: 79 (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 SE17?
Homes in SE17 have an average EPC rating of C, scoring 73 out of 100 for energy efficiency. That figure comes from 13,346 certificates issued across the district.
To put that in perspective, SE17 performs better than most areas in England and Wales — the national average is just 67.
What percentage of homes in SE17 are rated F or G?
0.6% of homes in SE17 fall into the F or G bands — the lowest energy efficiency ratings. Nationally, the figure is 2.9%.
This is actually better than the national picture, suggesting the housing stock in SE17 is in relatively good shape — though any home rated F or G would still benefit enormously from basic upgrades. Landlords should note that F and G rated properties cannot legally be rented out under current MEES rules.