LL38 is below average for energy efficiency — most homes here have room to improve.
31% of homes are rated F or G — above the national average of 2.9%.
When it comes to energy performance, LL38 in Gwynedd manages an average of 45 out of 100, placing it below the national average. Compared to the national average of 67, that puts LL38 below the norm for England and Wales. The most common rating band is E, with 4.5% of homes rated A or B and 26.8% in the C or D bands. Meanwhile, 31% 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 bungalows. Around 85% of properties are owner-occupied . 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 45 to 81 — a 36-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 LL38 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 LL38?
Homes in LL38 have an average EPC rating of E, scoring 45 out of 100 for energy efficiency. That figure comes from 313 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 An E rating suggests many homes here are losing significant amounts of heat — and money — through poor insulation or outdated heating systems.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 LL38 are rated F or G?
31% of homes in LL38 fall into the F or G bands — the lowest energy efficiency ratings. Nationally, the figure is 2.9%.
That means LL38 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.