EPC.Report
E
LL53 Dwyfor Meirionnydd
Gwynedd Rating E Score: 51 / 100

LL53 is below average for energy efficiency — most homes here have room to improve.

25% of homes are rated F or G — above the national average of 2.9%.

Data from 5,890 property assessments shows LL53 averaging 51 out of 100, placing it below the national average. For reference, the England and Wales average is 67 — so LL53 is below that benchmark. The most common rating band is E, with 6.5% of homes rated A or B and 39.7% in the C or D bands. Meanwhile, 25% 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.

Walk through LL53 and you will mostly see houses. Around 70% of properties are owner-occupied .

There is genuine room for improvement here. If every recommended upgrade were carried out, the average score could climb from 51 to 78 — a 27-point jump that would lift the typical rating to C. That is a substantial gain, suggesting many homes are missing basic efficiency measures. If you live in LL53 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

A
53 (0.9%)
B
328 (5.6%)
C
788 (13.4%)
D
1,551 (26.3%)
E
1,697 (28.8%)
F
967 (16.4%)
G
506 (8.6%)

Energy Efficiency Score

51
LL53 avg
67
National avg
-16 points vs national average

Potential score if all improvements made: 78 (rating C)

Recommended Improvements

Government funding may be available for some of these improvements. Check grants →

More data — property types, tenure & fuel

Property Types

3,927
House
1,293
Bungalow
572
Flat
97
Maisonette
1
Park home

Tenure

3,858
Owner-occupied
848
Private rented
821
Social rented

Main Fuel Types

2,115
gas
1,632
electric
1,713
oil
430
other

Frequently asked questions

What is the average EPC rating in LL53?

Homes in LL53 have an average EPC rating of E, scoring 51 out of 100 for energy efficiency. That figure comes from 5,890 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 An E rating suggests many homes here are losing significant amounts of heat — and money — through poor insulation or outdated heating systems.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 LL53 are rated F or G?

25% of homes in LL53 fall into the F or G bands — the lowest energy efficiency ratings. Nationally, the figure is 2.9%.

That means LL53 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.

See all EPC data for Gwynedd →