Every council we publish, in one file, free to reuse under the Open Government Licence v3.0. Please credit “unlettable.co.uk, from the Energy Performance of Buildings Register (MHCLG)”.
Download unlettable-units-by-area.csv: council code, name, region, let units with a valid certificate, rated F or G, rated E, and with an expired certificate.
Area-level counts only. We never publish an individual unit, building or address.