EPC Ratings in NN3
Postcode area NN3 — 10,376 Energy Performance Certificates on record
10K
Certificates
10K
Properties
C (70)
Average Rating
£1,032
Avg Energy Cost/yr
EPC Rating
A92+
0.5%B81–91
10.6%C69–80
55.2%70
D55–68
28.2%E39–54
4.8%F21–38
0.6%G1–20
0.1%NN3 is 1.5 points better than the national average (D, 68.5/100).
70
NN3
68.5
National average
84
Potential (with improvements)
Rating Distribution
A
510.5%
B1,096
10.6%
C5,729
55.2%
D2,931
28.2%
E
4984.8%
F
580.6%
G
130.1%
Average Annual Energy Costs
| Cost Type | NN3 | National Avg | Difference |
|---|---|---|---|
| Heating | £767/yr | £782/yr | ▼ £15 |
| Hot water | £167/yr | £184/yr | ▼ £17 |
| Lighting | £97/yr | £95/yr | ▲ £2 |
| Total | £1,032/yr | £1,061/yr | ▼ £29 |
Property Types
House
7,62873.5%
Flat
1,49114.4%
Bungalow
1,09810.6%
Maisonette
1571.5%
Park home
20.0%
Main Heating Fuel
Mains gas
9,70193.5%
Electric
6456.2%
Other
180.2%
LPG
70.1%
Oil
10.0%
CO₂ Emissions
3.1 tonnes/yr
Current average
1.6 tonnes/yr
Potential (with improvements)
Average floor area: 85 m²
Construction Age
Pre-1900
104
1900–1929
332
1930–1949
905
1950–1966
1,192
1967–1975
2,844
1976–1982
1,988
1983–1990
1,129
1991–1995
332
1996–2002
209
2003–2006
166
2007–2011
197
2012+
679
Efficiency Trend Over Time
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The postcode area NN3 has 10,376 Energy Performance Certificates on record, covering 10,157 properties. The average EPC rating is C with an efficiency score of 70 out of 100. Annual energy costs average £1,032, comprising £767 for heating, £167 for hot water and £97 for lighting. Average CO₂ emissions are 3.1 tonnes per year, with the potential to reduce to 1.6 tonnes through energy efficiency improvements.