EPC Ratings in SO21
Postcode area SO21 — 2,950 Energy Performance Certificates on record
3K
Certificates
3K
Properties
D (64)
Average Rating
£1,454
Avg Energy Cost/yr
EPC Rating
A92+
1.6%B81–91
8.3%C69–80
34.7%D55–68
32.7%64
E39–54
17.5%F21–38
4.4%G1–20
0.7%SO21 is 4.5 points worse than the national average (D, 68.5/100).
64
SO21
68.5
National average
81
Potential (with improvements)
Rating Distribution
A
461.6%
B246
8.3%
C1,025
34.7%
D965
32.7%
E516
17.5%
F
1304.4%
G
220.7%
Average Annual Energy Costs
| Cost Type | SO21 | National Avg | Difference |
|---|---|---|---|
| Heating | £1,110/yr | £782/yr | ▲ £328 |
| Hot water | £221/yr | £184/yr | ▲ £37 |
| Lighting | £122/yr | £95/yr | ▲ £27 |
| Total | £1,454/yr | £1,061/yr | ▲ £393 |
Property Types
House
2,28477.4%
Bungalow
33311.3%
Flat
2137.2%
Park home
1003.4%
Maisonette
200.7%
Main Heating Fuel
Mains gas
1,73959.0%
Electric
54018.3%
Oil
52017.7%
LPG
1224.1%
Other
250.8%
CO₂ Emissions
4.7 tonnes/yr
Current average
2.5 tonnes/yr
Potential (with improvements)
Average floor area: 128 m²
Construction Age
Pre-1900
329
1900–1929
255
1930–1949
176
1950–1966
547
1967–1975
319
1976–1982
197
1983–1990
206
1991–1995
232
1996–2002
139
2003–2006
111
2007–2011
129
2012+
206
Efficiency Trend Over Time
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The postcode area SO21 has 2,950 Energy Performance Certificates on record, covering 2,735 properties. The average EPC rating is D with an efficiency score of 64 out of 100. Annual energy costs average £1,454, comprising £1,110 for heating, £221 for hot water and £122 for lighting. Average CO₂ emissions are 4.7 tonnes per year, with the potential to reduce to 2.5 tonnes through energy efficiency improvements.