EPC.Report
D
TN8 Tonbridge
Sevenoaks Rating D Score: 63 / 100

TN8 is around the national average for energy efficiency.

8.1% of homes are rated F or G — above the national average of 2.9%.

Data from 4,338 property assessments shows TN8 averaging 63 out of 100, placing it around the national average. For reference, the England and Wales average is 67 — so TN8 is around that benchmark. The most common rating band is D, with 15.6% of homes rated A or B and 59.0% in the C or D bands. Meanwhile, 8.1% 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.

Walk through TN8 and you will mostly see houses. Around 69% of properties are owner-occupied and 16% are social housing. Gas central heating is the main fuel source for 67% 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 81 — a 18-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 TN8 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
11 (0.3%)
B
667 (15.4%)
C
1,209 (27.9%)
D
1,351 (31.1%)
E
747 (17.2%)
F
272 (6.3%)
G
81 (1.9%)

Energy Efficiency Score

63
TN8 avg
67
National avg
-4 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

388
Bungalow
3,166
House
728
Flat
53
Maisonette
3
Park home

Tenure

2,522
Owner-occupied
550
Private rented
593
Social rented

Main Fuel Types

2,907
gas
677
electric
672
oil
82
other

Frequently asked questions

What is the average EPC rating in TN8?

Homes in TN8 have an average EPC rating of D, scoring 63 out of 100 for energy efficiency. That figure comes from 4,338 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 TN8 are rated F or G?

8.1% of homes in TN8 fall into the F or G bands — the lowest energy efficiency ratings. Nationally, the figure is 2.9%.

That means TN8 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 Sevenoaks →