EPC.Report
E
LL21 Dwyfor Meirionnydd
Denbighshire Rating E Score: 51 / 100

LL21 is below average for energy efficiency — most homes here have room to improve.

26.4% of homes are rated F or G — above the national average of 2.9%.

For the 1,925 homes assessed in LL21, the average energy score comes in at 51 out of 100, placing it below the national average. The national average is 67, which means LL21 performs below most areas. The most common rating band is D, with 5.0% of homes rated A or B and 43.0% in the C or D bands. Meanwhile, 26.4% 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.

Houses make up the bulk of the housing in this district. Around 66% of properties are owner-occupied and 17% are social housing. Oil-fired heating is common in this part of LL21, 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 51 to 81 — a 30-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 LL21 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
19 (1.0%)
B
78 (4.1%)
C
316 (16.4%)
D
511 (26.5%)
E
492 (25.6%)
F
326 (16.9%)
G
183 (9.5%)

Energy Efficiency Score

51
LL21 avg
67
National avg
-16 points vs national average

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

1,478
House
375
Bungalow
67
Flat
4
Maisonette
1
Park home

Tenure

1,236
Owner-occupied
307
Private rented
318
Social rented

Main Fuel Types

635
gas
356
electric
736
oil
198
other

Frequently asked questions

What is the average EPC rating in LL21?

Homes in LL21 have an average EPC rating of E, scoring 51 out of 100 for energy efficiency. That figure comes from 1,925 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 LL21 are rated F or G?

26.4% of homes in LL21 fall into the F or G bands — the lowest energy efficiency ratings. Nationally, the figure is 2.9%.

That means LL21 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 Denbighshire →