EPC Ratings in SN3
Postcode area SN3 — 7,912 Energy Performance Certificates on record
8K
Certificates
8K
Properties
C (72)
Average Rating
£969
Avg Energy Cost/yr
EPC Rating
A92+
5.5%B81–91
17.9%C69–80
41.7%72
D55–68
28.9%E39–54
5.2%F21–38
0.7%G1–20
0.2%SN3 is 3.5 points better than the national average (D, 68.5/100).
72
SN3
68.5
National average
84
Potential (with improvements)
Rating Distribution
A
4365.5%
B1,418
17.9%
C3,296
41.7%
D2,290
28.9%
E
4085.2%
F
520.7%
G
120.2%
Average Annual Energy Costs
| Cost Type | SN3 | National Avg | Difference |
|---|---|---|---|
| Heating | £695/yr | £782/yr | ▼ £87 |
| Hot water | £181/yr | £184/yr | ▼ £3 |
| Lighting | £93/yr | £95/yr | ▼ £2 |
| Total | £969/yr | £1,061/yr | ▼ £92 |
Property Types
House
5,51269.7%
Flat
1,72321.8%
Bungalow
5416.8%
Maisonette
1361.7%
Main Heating Fuel
Mains gas
6,70684.8%
Electric
1,17614.9%
Other
180.2%
Oil
100.1%
LPG
20.0%
CO₂ Emissions
2.9 tonnes/yr
Current average
1.6 tonnes/yr
Potential (with improvements)
Average floor area: 83 m²
Construction Age
Pre-1900
59
1900–1929
131
1930–1949
313
1950–1966
1,849
1967–1975
1,224
1976–1982
968
1983–1990
469
1991–1995
386
1996–2002
199
2003–2006
292
2007–2011
322
2012+
1,602
Efficiency Trend Over Time
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The postcode area SN3 has 7,912 Energy Performance Certificates on record, covering 7,515 properties. The average EPC rating is C with an efficiency score of 72 out of 100. Annual energy costs average £969, comprising £695 for heating, £181 for hot water and £93 for lighting. Average CO₂ emissions are 2.9 tonnes per year, with the potential to reduce to 1.6 tonnes through energy efficiency improvements.