EPC Ratings in N21
Postcode area N21 — 3,090 Energy Performance Certificates on record
3K
Certificates
3K
Properties
D (66)
Average Rating
£1,229
Avg Energy Cost/yr
EPC Rating
A92+
0.1%B81–91
9.1%C69–80
34.9%D55–68
42.8%66
E39–54
11.5%F21–38
1.3%G1–20
0.3%N21 is 2.5 points worse than the national average (D, 68.5/100).
66
N21
68.5
National average
79
Potential (with improvements)
Rating Distribution
A
40.1%
B281
9.1%
C1,079
34.9%
D1,323
42.8%
E354
11.5%
F
401.3%
G
90.3%
Average Annual Energy Costs
| Cost Type | N21 | National Avg | Difference |
|---|---|---|---|
| Heating | £930/yr | £782/yr | ▲ £148 |
| Hot water | £186/yr | £184/yr | ▲ £2 |
| Lighting | £113/yr | £95/yr | ▲ £18 |
| Total | £1,229/yr | £1,061/yr | ▲ £168 |
Property Types
House
1,47047.6%
Flat
1,41145.7%
Maisonette
1715.5%
Bungalow
381.2%
Main Heating Fuel
Mains gas
2,67688.6%
Electric
33010.9%
LPG
70.2%
Other
60.2%
Oil
10.0%
CO₂ Emissions
3.9 tonnes/yr
Current average
2.2 tonnes/yr
Potential (with improvements)
Average floor area: 105 m²
Construction Age
Pre-1900
125
1900–1929
628
1930–1949
999
1950–1966
214
1967–1975
176
1976–1982
86
1983–1990
92
1991–1995
133
1996–2002
245
2003–2006
64
2007–2011
42
2012+
256
Efficiency Trend Over Time
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The postcode area N21 has 3,090 Energy Performance Certificates on record, covering 3,011 properties. The average EPC rating is D with an efficiency score of 66 out of 100. Annual energy costs average £1,229, comprising £930 for heating, £186 for hot water and £113 for lighting. Average CO₂ emissions are 3.9 tonnes per year, with the potential to reduce to 2.2 tonnes through energy efficiency improvements.