How bythenumbers measures the mix of council tax bands, as a cost signal, not a quality judgement.
This category uses Valuation Office Agency data on the council tax band of homes in the area. It looks at the mix of bands, especially how many sit in A to C. The VOA does not publish the bill itself in this open dataset, so band mix is the cost signal the data supports. A higher figure means a larger share of homes in those lower bands, typically a smaller bill, not a higher one.
Council tax is a yearly cost that does not show up in a mortgage calculator the same way a house price does. Two similar homes can sit in different bands. Knowing the local mix helps you estimate the ongoing cost before you treat the asking price as the whole number.
Affordability is not only the purchase or the rent. If you are comparing areas on what it actually costs to live there, the published band mix belongs beside the sale prices. Confirm the band of the specific property with the local authority before you budget. Use this category to see the local pattern, not to quote a bill.
Licences and refresh cadence are on the sources page.
Search any UK postcode to see this category on a live report, beside the rest of the Area Measure.