The GAIL's Effect used free HM Land Registry data: 10,531 sales, zero budget

jamesbrooksco · x · 2026-10-20

The data was entirely free: HM Land Registry Price Paid Data covers every house sale in England & Wales. Brooks analyzed 10,531 sales around 205 bakeries, comparing median sold prices in the two years before each opening against the period after — no scraping budget, no paid API, no survey panel.

Related event: How James Brooks Turned Free Land Registry Data Into 205 Local News Stories Testing the 'Gail's Effect'(6 posts)→

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