There is a second selection issue in the 16 days: “well-presented” may have been assigned after seeing which homes sold quickly. Condition needs to be classified independently of the outcome, ideally from a consistent set of listing characteristics. Otherwise fast sales define the category...
Was the December 2025 information captured at month-end or downloaded later? That matters because transaction records may be added or revised after an initial release. Keep the extraction date and any later revisions alongside the figures; otherwise two people can analyse “December” and...