The Crown Estate is pursuing planning approval to bolster what it describes as "outdated" security arrangements near the Prince and Princess of Wales's Kensington Palace residence.
Initial plans involve erecting temporary vehicle barriers outside the historic royal property.
These short-term measures will precede more permanent "Hostile Vehicle Mitigation" installations, according to reports in the Mail.
The security enhancement comes as part of broader protective measures being considered for the Palace, which serves as the official London home of Prince William and Catherine.
Recent restoration work on the Palace's distinctive golden gates has already been undertaken at the property.
The security upgrade follows a significant breach at the royal residence late last year.
Derek Egan was sentenced to prison in January after twice trespassing on the Kensington Palace grounds during the period leading up to Christmas.
The intruder's ability to access the Palace on two separate occasions highlighted vulnerabilities in the existing protective measures.
His conviction appears to have prompted authorities to reassess the adequacy of the current security infrastructure at the site.
The Crown Estate's application for enhanced barriers suggests officials are taking a comprehensive approach to preventing future unauthorised access to the residence where the heir to the throne maintains his London base.
Despite relocating to Windsor in 2022, the Prince and Princess of Wales continue to maintain their London base at the palace.
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Their residence, known as Apartment 1A, belies its modest name with its 20 rooms, which include five reception areas, three principal bedrooms and separate quarters for staff.
The couple initially moved into the Kensington property in 2013, following Prince William's time as an RAF search and rescue pilot in Anglesey.
The Palace apartment now serves as their city accommodation when royal duties require their presence in the capital.
GB News has contacted the Crown Estate for comment.
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