For the 9,298 homes assessed in L3, the average energy score comes in at 74 out of 100, placing it above the national average. The national average is 67, which means L3 performs better than most areas. The most common rating band is C, with 27.5% of homes rated A or B and 68.4% 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 C rating suggests reasonably efficient homes, though there is still room for improvement on heating and insulation.

Flats make up the bulk of the housing in this district. Flats alone account for 84% of all certificated properties — a distinctly urban profile. Around 33% of properties are owner-occupied , while 52% are privately rented . That high proportion of rental homes matters — landlords in L3 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. A significant share of homes here rely on electric heating, which tends to be more expensive per unit of energy than gas.

There is genuine room for improvement here. If every recommended upgrade were carried out, the average score could climb from 74 to 81 — a 7-point jump that would lift the typical rating to B. If you live in L3 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.