EPC Ratings in NN1
Postcode area NN1 — 7,760 Energy Performance Certificates on record
8K
Certificates
8K
Properties
D (68)
Average Rating
£1,022
Avg Energy Cost/yr
EPC Rating
A92+
0.0%B81–91
7.5%C69–80
45.3%D55–68
37.7%68
E39–54
8.2%F21–38
0.9%G1–20
0.3%NN1 is 0.5 points worse than the national average (D, 68.5/100).
68
NN1
68.5
National average
79
Potential (with improvements)
Rating Distribution
A
10.0%
B
5817.5%
C3,518
45.3%
D2,927
37.7%
E639
8.2%
F
670.9%
G
270.3%
Average Annual Energy Costs
| Cost Type | NN1 | National Avg | Difference |
|---|---|---|---|
| Heating | £750/yr | £782/yr | ▼ £32 |
| Hot water | £191/yr | £184/yr | ▲ £7 |
| Lighting | £81/yr | £95/yr | ▼ £14 |
| Total | £1,022/yr | £1,061/yr | ▼ £39 |
Property Types
Flat
4,40556.8%
House
3,06339.5%
Maisonette
2303.0%
Bungalow
620.8%
Main Heating Fuel
Mains gas
5,26768.7%
Electric
2,37531.0%
Other
200.3%
LPG
20.0%
CO₂ Emissions
3.1 tonnes/yr
Current average
1.9 tonnes/yr
Potential (with improvements)
Average floor area: 72 m²
Construction Age
Pre-1900
1,408
1900–1929
2,218
1930–1949
226
1950–1966
178
1967–1975
416
1976–1982
331
1983–1990
446
1991–1995
141
1996–2002
527
2003–2006
374
2007–2011
321
2012+
1,035
Efficiency Trend Over Time
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The postcode area NN1 has 7,760 Energy Performance Certificates on record, covering 7,526 properties. The average EPC rating is D with an efficiency score of 68 out of 100. Annual energy costs average £1,022, comprising £750 for heating, £191 for hot water and £81 for lighting. Average CO₂ emissions are 3.1 tonnes per year, with the potential to reduce to 1.9 tonnes through energy efficiency improvements.