EPC Ratings in ST20
Postcode area ST20 — 822 Energy Performance Certificates on record
822
Certificates
773
Properties
D (61)
Average Rating
£1,625
Avg Energy Cost/yr
EPC Rating
A92+
2.6%B81–91
6.8%C69–80
26.8%D55–68
35.4%61
E39–54
18.6%F21–38
8.0%G1–20
1.8%ST20 is 7.5 points worse than the national average (D, 68.5/100).
61
ST20
68.5
National average
82
Potential (with improvements)
Rating Distribution
A
212.6%
B
566.8%
C220
26.8%
D291
35.4%
E153
18.6%
F66
8.0%
G
151.8%
Average Annual Energy Costs
| Cost Type | ST20 | National Avg | Difference |
|---|---|---|---|
| Heating | £1,273/yr | £782/yr | ▲ £491 |
| Hot water | £231/yr | £184/yr | ▲ £47 |
| Lighting | £122/yr | £95/yr | ▲ £27 |
| Total | £1,625/yr | £1,061/yr | ▲ £564 |
Property Types
House
65079.1%
Bungalow
13816.8%
Flat
283.4%
Maisonette
60.7%
Main Heating Fuel
Mains gas
40649.5%
Oil
19824.1%
Electric
11714.3%
LPG
769.3%
Other
232.8%
CO₂ Emissions
5.2 tonnes/yr
Current average
2.5 tonnes/yr
Potential (with improvements)
Average floor area: 115 m²
Construction Age
Pre-1900
107
1900–1929
64
1930–1949
55
1950–1966
170
1967–1975
141
1976–1982
72
1983–1990
65
1991–1995
16
1996–2002
25
2003–2006
32
2007–2011
12
2012+
47
Efficiency Trend Over Time
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The postcode area ST20 has 822 Energy Performance Certificates on record, covering 773 properties. The average EPC rating is D with an efficiency score of 61 out of 100. Annual energy costs average £1,625, comprising £1,273 for heating, £231 for hot water and £122 for lighting. Average CO₂ emissions are 5.2 tonnes per year, with the potential to reduce to 2.5 tonnes through energy efficiency improvements.