Based on 25,245 Energy Performance Certificates, NW9 in Barnet 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 39.8% of homes rated A or B and 53.1% in the C or D bands. Meanwhile, 0.9% 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 67% of all certificated properties — a distinctly urban profile. Around 40% of properties are owner-occupied , while 38% are privately rented and 22% are social housing. That high proportion of rental homes matters — landlords in NW9 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 54% 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 81 — a 8-point jump that would lift the typical rating to B. If you live in NW9 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.