349,336 properties in one city. 842 in the Isles of Scilly. Both get the same page, the same checks and the same suppression rule.
There are 318 local authorities on this site and the distance between the ends of that list is larger than it sounds. Birmingham holds 349,336 matched homes. The Isles of Scilly holds 842. One is four hundred and fifteen times the other.
Both pages are built by the same script on the same afternoon from the same monthly release. Birmingham gets no extra registers checked and Scilly gets no shortcuts. A ward of forty homes meets the same disclosure threshold as a postcode district of twenty thousand.
Scale does leave one visible mark. The Isles of Scilly's conservation area figure reads unknown for all 842 of its homes, and that is not because the islands have none. It is one of twenty English authorities out of 296 where the national planning data has no conservation area polygons published yet. The page says unknown rather than none, because those are different facts and only one of them is true.
Small places tend to disappear from national datasets by being rounded into a region or dropped below a threshold. Keeping 842 homes on the same footing as 349,336 costs almost nothing and means the islands are actually in the country's housing picture rather than a footnote to it.