EPC Ratings in SN11
Postcode area SN11 — 4,220 Energy Performance Certificates on record
4K
Certificates
4K
Properties
C (69)
Average Rating
£1,012
Avg Energy Cost/yr
EPC Rating
A92+
1.2%B81–91
16.2%C69–80
40.2%69
D55–68
30.3%E39–54
9.8%F21–38
2.2%G1–20
0.3%SN11 is 0.5 points better than the national average (D, 68.5/100).
69
SN11
68.5
National average
84
Potential (with improvements)
Rating Distribution
A
501.2%
B682
16.2%
C1,697
40.2%
D1,277
30.3%
E412
9.8%
F
912.2%
G
110.3%
Average Annual Energy Costs
| Cost Type | SN11 | National Avg | Difference |
|---|---|---|---|
| Heating | £749/yr | £782/yr | ▼ £33 |
| Hot water | £173/yr | £184/yr | ▼ £11 |
| Lighting | £90/yr | £95/yr | ▼ £5 |
| Total | £1,012/yr | £1,061/yr | ▼ £49 |
Property Types
House
3,08673.1%
Flat
71216.9%
Bungalow
3879.2%
Maisonette
350.8%
Main Heating Fuel
Mains gas
3,12874.2%
Electric
71116.9%
Oil
3277.8%
LPG
260.6%
Other
250.6%
CO₂ Emissions
3.4 tonnes/yr
Current average
1.7 tonnes/yr
Potential (with improvements)
Average floor area: 91 m²
Construction Age
Pre-1900
365
1900–1929
102
1930–1949
195
1950–1966
660
1967–1975
533
1976–1982
255
1983–1990
242
1991–1995
204
1996–2002
330
2003–2006
359
2007–2011
172
2012+
611
Efficiency Trend Over Time
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The postcode area SN11 has 4,220 Energy Performance Certificates on record, covering 4,102 properties. The average EPC rating is C with an efficiency score of 69 out of 100. Annual energy costs average £1,012, comprising £749 for heating, £173 for hot water and £90 for lighting. Average CO₂ emissions are 3.4 tonnes per year, with the potential to reduce to 1.7 tonnes through energy efficiency improvements.