Local authority energy-performance profile
Chiltern EPC ratings and energy costs
Understand how homes in Chiltern score, what certificate-estimated energy costs look like and how much improvement the recorded recommendations suggest.
Average EPC
D 66
2.5 points below analysed national average
Rated C or above
44.9%
of analysed certificates
Potential uplift
+15
average score points
Properties represented
506
from 508 certificates
At a glance
What the data says about Chiltern
44.9%
rated A–C
17.9%
rated E–G
£988
certificate-estimated annual cost
Cost figures are averages of estimates recorded on EPCs at different dates. They are useful for comparing areas, but they are not a forecast of a current household bill.
Latest official local-authority table
Updated through 31 March 2020
25,897
domestic EPC lodgements since 2008
33.2%
rated C or above
26.9%
rated E, F or G
The current MHCLG live table counts certificate lodgements, not unique homes. It complements the more detailed 2020–2025 EPCScore analysis below.
Average EPC score in Chiltern
EPC band distribution in Chiltern
Certificate-estimated energy costs
| Cost Type | Chiltern | National Avg | Difference |
|---|---|---|---|
| Heating | £749/yr | £782/yr | ▼ £33 |
| Hot water | £145/yr | £184/yr | ▼ £39 |
| Lighting | £94/yr | £95/yr | ▼ £1 |
| Total | £988/yr | £1,061/yr | ▼ £73 |
These values come from certificate assessments and reflect standardised occupancy assumptions and energy prices used when each EPC was produced. They are not live tariffs.
Property types in the dataset
Main heating fuel
Carbon emissions and improvement potential
4.3 t
current annual CO₂ estimate
2.3 t
potential annual estimate
107 m²
average floor area
When the represented homes were built
Average EPC score over time
- 2020
- 66