When it comes to energy performance, W1G in Westminster manages an average of 66 out of 100, placing it around the national average. Compared to the national average of 67, that puts W1G around the norm for England and Wales. The most common rating band is C, with 7.2% of homes rated A or B and 77.1% in the C or D bands. Meanwhile, 2.8% 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 flats. Flats alone account for 80% of all certificated properties — a distinctly urban profile. Around 55% of properties are owner-occupied , while 37% are privately rented . That high proportion of rental homes matters — landlords in W1G 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 81% 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 77 — a 11-point jump that would lift the typical rating to C. If you live in W1G 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.