Across 21,839 assessed properties, SW17 achieves an average EPC score of 67 out of 100, placing it around the national average. For reference, the England and Wales average is 67 — so SW17 is around that benchmark. The most common rating band is D, with 10.9% of homes rated A or B and 78.8% in the C or D bands. Meanwhile, 1.4% of homes sit in the F or G bands — the least efficient categories. In practical terms, a rating of D means many homes here lose more heat than average — potentially adding £200-400 per year to energy bills compared to a C-rated home.

Walk through SW17 and you will mostly see flats. Flats alone account for 58% of all certificated properties — a distinctly urban profile. Around 47% of properties are owner-occupied , while 37% are privately rented and 16% are social housing. That high proportion of rental homes matters — landlords in SW17 must comply with the Minimum Energy Efficiency Standards (MEES), which currently require at least an EPC E rating. Properties rated F or G cannot legally be let. Gas central heating is the main fuel source for 85% 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 67 to 78 — a 11-point jump that would lift the typical rating to C. If you live in SW17 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.