What insulation adds in EC3A
The realistic uplift
Each energy certificate lists the improvements an assessor recommends and the rating the home would reach if they were done. Averaged across 247 certificates in EC3A, the current rating of 77.8 could rise to about 80.0 out of 100. The estimated annual heating cost averages £286 now, and about £256 after the recommended work – an estimated saving of roughly £30 a year.
These are the register's own estimates, averaged across many homes; the figure for any one property depends on its fabric and how it is heated.
What the certificates say about the fabric
The most common construction descriptions recorded across these certificates. Percentages are of certificates where the field was recorded.
Walls
- Solid brick, as built, no insulation (assumed) – 22.5%
- Average thermal transmittance 0.65 W/m²K – 10.0%
- Solid brick, as built, insulated (assumed) – 7.5%
Recorded as having no wall insulation: 22.5%.
Roofs
- (other premises above) – 60.0%
- (another dwelling above) – 22.5%
- Average thermal transmittance 0.20 W/m²K – 5.0%
Recorded as having no roof insulation: 5.0%.
Glazing
- Single glazed – 66.7%
- Partial secondary glazing – 16.7%
- Fully double glazed – 16.7%
Main heating
- Community scheme – 65.0%
- Boiler and radiators, mains gas – 35.0%
Which streets need it most
See the streets in EC3A with the highest share of homes rated band D or below.
Leakiest streets in EC3AKeep exploring
Biggest average savings nearby
- What insulation adds in RM11 ~£463/yr average saving
- What insulation adds in TN14 ~£444/yr average saving
- What insulation adds in EC4Y ~£405/yr average saving
- What insulation adds in KT8 ~£391/yr average saving
- What insulation adds in N14 ~£379/yr average saving
- What insulation adds in RM4 ~£371/yr average saving
- What insulation adds in HA7 ~£342/yr average saving
- What insulation adds in CR3 ~£328/yr average saving