BN45 is below average for energy efficiency — most homes here have room to improve.
17.3% of homes are rated F or G — above the national average of 2.9%.
When it comes to energy performance, BN45 in Mid Sussex manages an average of 54 out of 100, placing it below the national average. Compared to the national average of 67, that puts BN45 below the norm for England and Wales. The most common rating band is E, with 11.6% of homes rated A or B and 38.2% in the C or D bands. Meanwhile, 17.3% of homes sit in the F or G bands — the least efficient categories. In practical terms, an E rating signals significant energy waste. In practical terms, households here could be spending £400-600 more per year on energy than they need to.
The area is characterised by houses. Around 70% of properties are owner-occupied . Oil-fired heating is common in this part of BN45, reflecting the more rural character of the area and limited mains gas coverage.
There is genuine room for improvement here. If every recommended upgrade were carried out, the average score could climb from 54 to 81 — a 27-point jump that would lift the typical rating to B. That is a substantial gain, suggesting many homes are missing basic efficiency measures. If you live in BN45 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: 81 (rating B)
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 BN45?
Homes in BN45 have an average EPC rating of E, scoring 54 out of 100 for energy efficiency. That figure comes from 173 certificates issued across the district.
That is below the national average of 67, which means there is real scope to improve energy efficiency here. An E rating suggests many homes here are losing significant amounts of heat — and money — through poor insulation or outdated heating systems.
What percentage of homes in BN45 are rated F or G?
17.3% of homes in BN45 fall into the F or G bands — the lowest energy efficiency ratings. Nationally, the figure is 2.9%.
That means BN45 has a higher-than-average proportion of poorly insulated homes. On the positive side, many of these properties may qualify for free improvements through government schemes like ECO4 or the Great British Insulation Scheme. Landlords should note that F and G rated properties cannot legally be rented out under current MEES rules.