What insulation adds in CR3

55.9 → 76.2
Rating, now → potential
+20.4
Average uplift
£328
Avg saving / yr
293
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 293 certificates in CR3, the current rating of 55.9 could rise to about 76.2 out of 100. The estimated annual heating cost averages £1006 now, and about £678 after the recommended work – an estimated saving of roughly £328 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) – 57.5%
  • Cavity wall, as built, no insulation (assumed) – 27.5%
  • Solid brick, with internal insulation – 2.5%

Recorded as having no wall insulation: 87.5%.

Roofs

  • Pitched, 100 mm loft insulation – 32.5%
  • Pitched, no insulation (assumed) – 15.0%
  • Pitched, 250 mm loft insulation – 10.0%

Recorded as having no roof insulation: 20.0%.

Glazing

  • Fully double glazed – 78.9%
  • Mostly double glazing – 21.1%

Main heating

  • Boiler and radiators, mains gas – 97.5%
  • Mixed exhaust air source heat pump, Underfloor heating, pipes in screed above insulation, electric – 2.5%

Which streets need it most

See the streets in CR3 with the highest share of homes rated band D or below.

Leakiest streets in CR3

Keep exploring

In this area

Biggest average savings nearby

Zoom out