Give me land

Today's Guardian has an investigative piece about supermarket Tesco buying up land and leaving it empty, either to stop competitors opening stores near their own or in anticipation of its value increasing, and BBC2 also broadcast a documentary last night showing how house building companies operate along similar lines.

We all know how pubcos use restrictive covenants to stop rivals buying pubs they sell off as unprofitable, ensuring that they become houses, shops or other businesses; I wonder what an analysis of Land Registry records like the one the Guardian has carried out on Tesco's property division would show about their "land banking" activities.