Postcode district energy-performance profile
GU20 EPC ratings and energy costs
Understand how homes in GU20 score, what certificate-estimated energy costs look like and how much improvement the recorded recommendations suggest.
Average EPC
D 65
3.5 points below analysed national average
Rated C or above
39.3%
of analysed certificates
Potential uplift
+15
average score points
Properties represented
517
from 544 certificates
At a glance
What the data says about GU20
39.3%
rated A–C
11.0%
rated E–G
£1,628
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.
Average EPC score in GU20
EPC band distribution in GU20
Certificate-estimated energy costs
| Cost Type | GU20 | National Avg | Difference |
|---|---|---|---|
| Heating | £1,289/yr | £782/yr | ▲ £507 |
| Hot water | £205/yr | £184/yr | ▲ £21 |
| Lighting | £134/yr | £95/yr | ▲ £39 |
| Total | £1,628/yr | £1,061/yr | ▲ £567 |
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
5.3 t
current annual CO₂ estimate
3 t
potential annual estimate
148 m²
average floor area
When the represented homes were built
Average EPC score over time
- 2020
- 65
- 2021
- 65
- 2022
- 64
- 2023
- 66
- 2024
- 65
- 2025
- 67