BN11 is around the national average for energy efficiency.
Energy efficiency in BN11 (Worthing) sits at an average score of 64 out of 100, placing it around the national average. To put this in context, the national average sits at 67. The most common rating band is D, with 8.3% of homes rated A or B and 72.3% in the C or D bands. Meanwhile, 2.9% 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.
Most of the housing stock here consists of flats. Flats alone account for 69% of all certificated properties — a distinctly urban profile. Around 65% of properties are owner-occupied , while 28% are privately rented . Gas central heating is the main fuel source for 70% 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 64 to 77 — a 13-point jump that would lift the typical rating to C. If you live in BN11 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.
EPC Rating Distribution
Energy Efficiency Score
Potential score if all improvements made: 77 (rating C)
Recommended Improvements
Government funding may be available for some of these improvements. Check grants →
More data — property types, tenure & fuel
Property Types
Tenure
Main Fuel Types
Frequently asked questions
What is the average EPC rating in BN11?
Homes in BN11 have an average EPC rating of D, scoring 64 out of 100 for energy efficiency. That figure comes from 14,824 certificates issued across the district.
This is broadly in line with the national average of 67 — neither particularly efficient nor particularly wasteful. A D rating typically means higher-than-necessary heating bills, especially in older properties without adequate insulation.
What percentage of homes in BN11 are rated F or G?
2.9% of homes in BN11 fall into the F or G bands — the lowest energy efficiency ratings. Nationally, the figure is 2.9%.
This is actually better than the national picture, suggesting the housing stock in BN11 is in relatively good shape — though any home rated F or G would still benefit enormously from basic upgrades. Landlords should note that F and G rated properties cannot legally be rented out under current MEES rules.