Across 4,628 assessed properties, SW1W achieves an average EPC score of 71 out of 100, placing it around the national average. For reference, the England and Wales average is 67 — so SW1W is around that benchmark. The most common rating band is C, with 26.9% of homes rated A or B and 62.9% in the C or D bands. Meanwhile, 1.3% 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.

Walk through SW1W and you will mostly see flats. Flats alone account for 80% of all certificated properties — a distinctly urban profile. Around 42% of properties are owner-occupied , while 40% are privately rented and 18% are social housing. That high proportion of rental homes matters — landlords in SW1W 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 66% 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 78 — a 7-point jump that would lift the typical rating to C. If you live in SW1W 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.