Donald Trump is personally lobbying for the Queen’s consent to hand over a 1000 year lease on Winfield House.
The Regent’s Park residence of the US ambassador is currently held from the Crown Estate on a 99-year lease, due to expire in 2053.
Trump is understood to be hoping for either a transfer of the Crown Estate’s freehold, or an extension of the lease to 999 years.
He is expected to raise the Winfield House lease as part of the negotiations for a US-UK trade deal, which he is prepared to accelerate if he wins a second term in next month’s election.