EPC Ratings in CB21
Postcode area CB21 — 2,365 Energy Performance Certificates on record
2K
Certificates
2K
Properties
D (67)
Average Rating
£1,371
Avg Energy Cost/yr
EPC Rating
A92+
3.0%B81–91
20.6%C69–80
27.8%D55–68
27.8%67
E39–54
16.5%F21–38
3.3%G1–20
0.9%CB21 is 1.5 points worse than the national average (D, 68.5/100).
67
CB21
68.5
National average
83
Potential (with improvements)
Rating Distribution
A
713.0%
B487
20.6%
C658
27.8%
D658
27.8%
E391
16.5%
F
783.3%
G
220.9%
Average Annual Energy Costs
| Cost Type | CB21 | National Avg | Difference |
|---|---|---|---|
| Heating | £1,039/yr | £782/yr | ▲ £257 |
| Hot water | £216/yr | £184/yr | ▲ £32 |
| Lighting | £116/yr | £95/yr | ▲ £21 |
| Total | £1,371/yr | £1,061/yr | ▲ £310 |
Property Types
House
1,72172.8%
Bungalow
44318.7%
Flat
1797.6%
Maisonette
210.9%
Park home
10.0%
Main Heating Fuel
Mains gas
1,14948.6%
Oil
57724.4%
Electric
55623.5%
LPG
602.5%
Other
210.9%
CO₂ Emissions
4.3 tonnes/yr
Current average
2.4 tonnes/yr
Potential (with improvements)
Average floor area: 117 m²
Construction Age
Pre-1900
238
1900–1929
93
1930–1949
86
1950–1966
346
1967–1975
265
1976–1982
165
1983–1990
190
1991–1995
119
1996–2002
109
2003–2006
47
2007–2011
166
2012+
445
Efficiency Trend Over Time
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The postcode area CB21 has 2,365 Energy Performance Certificates on record, covering 2,226 properties. The average EPC rating is D with an efficiency score of 67 out of 100. Annual energy costs average £1,371, comprising £1,039 for heating, £216 for hot water and £116 for lighting. Average CO₂ emissions are 4.3 tonnes per year, with the potential to reduce to 2.4 tonnes through energy efficiency improvements.