King Charles has issued updated tenancy terms for property occupied by Andrew Mountbatten-Windsor at Sandringham, adding explicit restrictions on using the accommodation for legal proceedings against law enforcement.

The revised agreement, circulated to the former Prince Andrew last week, includes a new clause prohibiting use of the premises for business purposes, including ongoing litigation against constabulary forces. Legal sources confirmed the amendment follows standard landlord practice of preventing residential properties from being converted into operational bases for activities beyond their intended domestic use.

The lease amendment specifies that monthly rent, paid through the King's private allowance to Mountbatten-Windsor, covers utilities, grounds maintenance and reasonable family accommodation. However, the document now explicitly excludes provision for legal defence infrastructure, consultation rooms designated for solicitor meetings, or facilities described as war rooms. Property management advisers noted the clarification protects the landlord from potential liability should tenant activities attract unwanted attention to the estate.

Estate agents familiar with the arrangement said the Sandringham cottage has been internally reclassified in property records as suitable for disgraced relatives, with viewings by appointment only and references required from at least two members of the immediate family. The listing highlights original period features and proximity to main house amenities, while noting in capital letters that no legal proceedings may be conducted on premises and that all court-related correspondence must use alternative addresses.

The tenancy modification comes as Mountbatten-Windsor prepares for Thursday's court hearing regarding his challenge to search warrants executed at both Sandringham and his previous residence at Royal Lodge. Housing law specialists observed that prohibiting a tenant from generating adverse publicity through on-site litigation represents an increasingly common protective measure for landlords managing sensitive residential arrangements. The King's property team declined to comment on whether security deposit terms had been adjusted to account for potential reputational damage.