Postcode sector
EPC ratings in CM21 9
2,329 properties in CM21 9 have EPC certificates, with an average rating of C—above the CM21 average. 48% of homes are rated D-G. This sector is part of CM21 in East Hertfordshire. Enter your postcode below to see your property's full EPC report and improvement recommendations.
EPC distribution
Percentage of properties in each EPC band across CM21 9.
Energy efficiency in CM21 9 is typical for the CM21 area. There are opportunities for improvement across various property types.
Recent EPCs
Anonymised sample of recent certificates for this sector.
| Address | Type | Rating | Date | View |
|---|---|---|---|---|
River Court Flat•1 months ago | Flat | C | 1 months ago | View report |
Bell Street Flat•1 months ago | Flat | C | 1 months ago | View report |
Walnut Tree Crescent Bungalow•1 months ago | Bungalow | D | 1 months ago | View report |
The Old Chapel Flat•1 months ago | Flat | C | 1 months ago | View report |
Copper Court Flat•1 months ago | Flat | D | 1 months ago | View report |
Station Road House•1 months ago | House | C | 1 months ago | View report |
Lawrence Avenue Bungalow•1 months ago | Bungalow | D | 1 months ago | View report |
Bell Street Flat•1 months ago | Flat | C | 1 months ago | View report |
Knight Street House•1 months ago | House | E | 1 months ago | View report |
Reedings Way Bungalow•1 months ago | Bungalow | C | 1 months ago | View report |
Common improvements in CM21
These upgrades are frequently recommended for properties in this area.
- 1
Solar photovoltaic panels, 2.5 kWp
3116 occurrences · Code 34
- 2
Solar water heating
2788 occurrences · Code 19
- 3
Low energy lighting for all fixed outlets
1761 occurrences · Code 35
- 4
Replace boiler with new condensing boiler
994 occurrences · Code 20
- 5
Floor insulation (solid floor)
938 occurrences · Code 58
Frequently asked questions about CM21 9
The average EPC rating in CM21 9 is band C. This is based on 2,329 properties with EPC certificates in this postcode sector, located in East Hertfordshire.
48% of properties in CM21 9 are rated D-G and could benefit from energy efficiency improvements. 52% are already rated A-C, indicating good energy performance.
Common EPC improvements recommended in the CM21 area include loft insulation, cavity wall insulation, upgrading to a more efficient boiler, installing double glazing, and switching to LED lighting. The specific recommendations vary based on each property's current features.
Other sectors in CM21
Explore EPC data for nearby postcode sectors in the same district.
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