What insulation adds in EC4R

67.0 → 74.7
Rating, now → potential
+7.7
Average uplift
£150
Avg saving / yr
102
Certificates

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 102 certificates in EC4R, the current rating of 67.0 could rise to about 74.7 out of 100. The estimated annual heating cost averages £696 now, and about £546 after the recommended work – an estimated saving of roughly £150 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) – 35.0%
  • Cavity wall, as built, insulated (assumed) – 32.5%
  • Solid brick, as built, insulated (assumed) – 10.0%

Recorded as having no wall insulation: 37.5%.

Roofs

  • (another dwelling above) – 65.0%
  • Roof room(s), insulated (assumed) – 5.0%
  • Flat, insulated – 5.0%

Recorded as having no roof insulation: 5.0%.

Glazing

  • Fully double glazed – 59.1%
  • Single glazed – 18.2%
  • Partial secondary glazing – 9.1%

Main heating

  • Boiler and radiators, mains gas – 47.5%
  • Room heaters, electric – 40.0%
  • Air source heat pump, warm air, electric – 5.0%

Which streets need it most

See the streets in EC4R with the highest share of homes rated band D or below.

Leakiest streets in EC4R

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