This property is an area of subsoil beneath a highway in Pontllanfraith, near Blackwood, and is being sold by auction from October 7th to 9th, 2025. The subsoil, also known as Lot 91, is situated beneath the highway and is described as having various rights and uses. The property's title number is WA143678 (Adopted Highway), and it offers a unique opportunity for the buyer to utilize the land in a way that may not be possible with traditional above-ground properties.