Retrofit Worth maps the streets that run cold

Field notes

The tool groups energy performance certificates by street and postcode area, then connects them with sold-price records and other public datasets. Its homepage reports 8,804 certificates across 195 streets and three postcode areas, alongside 47,436 sold-price records. The visible rankings use the share of homes rated band D or below, while estimated savings compare recorded current and post-improvement heating costs. Other pages apply the same street-and-area approach to flood exposure, planning consents, and crime trends.