EPC.Report
D
LL18 Clwyd North
Denbighshire Rating D Score: 63 / 100

LL18 is around the national average for energy efficiency.

5.5% of homes are rated F or G — above the national average of 2.9%.

For the 14,527 homes assessed in LL18, the average energy score comes in at 63 out of 100, placing it around the national average. The national average is 67, which means LL18 performs roughly in line with the rest of the country. The most common rating band is D, with 8.0% of homes rated A or B and 70.3% in the C or D bands. Meanwhile, 5.5% 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 60% of properties are owner-occupied , while 24% are privately rented and 16% are social housing. Gas central heating is the main fuel source for 85% 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 63 to 80 — a 17-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 LL18 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
76 (0.5%)
B
1,093 (7.5%)
C
4,009 (27.6%)
D
6,207 (42.7%)
E
2,339 (16.1%)
F
581 (4.0%)
G
222 (1.5%)

Energy Efficiency Score

63
LL18 avg
67
National avg
-4 points vs national average

Potential score if all improvements made: 80 (rating C)

Recommended Improvements

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

More data — property types, tenure & fuel

Property Types

7,384
House
4,190
Bungalow
2,820
Flat
131
Maisonette
2
Park home

Tenure

8,272
Owner-occupied
3,248
Private rented
2,248
Social rented

Main Fuel Types

12,398
gas
1,418
electric
546
oil
165
other

Frequently asked questions

What is the average EPC rating in LL18?

Homes in LL18 have an average EPC rating of D, scoring 63 out of 100 for energy efficiency. That figure comes from 14,527 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 LL18 are rated F or G?

5.5% of homes in LL18 fall into the F or G bands — the lowest energy efficiency ratings. Nationally, the figure is 2.9%.

That means LL18 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 →