Humanity's Top 12 Expensive Construction Builds

7. The Lancaster Duchy

Location: Lancaster, United Kingdom Completed Cost: $797 million (assessed value) Year Established: 1351 The Duchy of Lancaster is one of the two royal duchies in the United Kingdom, alongside the Duchy of Cornwall. While it is slightly less valuable than its counterpart, its assessed value of just under $800 million still reflects its significant worth and historical importance.
  Established: Mid-13th century Original Grant: Given to Edmund Crouchback, son of King Henry III The Duchy of Lancaster has a rich history, originating in the 13th century. Initially, the lands belonged to Simon de Montfort, the Earl of Leicester, who relinquished them to King Henry III. The duchy was then granted to Edmund Crouchback, marking its significance in royal heritage. Current Ownership
Current Owner: King Charles III As of now, the Duchy of Lancaster is owned by King Charles III, following his recent coronation. This ownership continues the tradition of royal stewardship over this historic estate.

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