Ghislaine Maxwell is selling the London home where Prince Andrew was pictured clutching the bare waist of his teen sex accuser, to fund her defence against sex charges.
British socialite Maxwell is accused of helping her ex-boyfriend, paedophile Jeffrey Epstein, recruit girls to abuse.
She has been held without bail in a New York jail since her arrest in July.
The sale of the three-storey 19th-century mews house, in London’s Belgravia and minutes from the Royal Albert Hall, is nearly complete, family spokesman Brian Basham said.
He declined to reveal the buyer or price, but Zoopla values it at £1,923,000.
Maxwell, who has offered £20.5million to be released on bail, appears to have bought it for £290,000 in 1997.
The Duke of York is accused of using it four years later to have sex with Epstein’s teen sex slave, Virginia Giuffre, then aged 17.
Ms Giuffre claims the pair had intercourse in the bathroom, which Andrew and his lawyers vehemently deny.
Of the alleged incident, she said in court papers: “Trying to do the best of my youthfulness to try and act seductive, I began to strip off my clothing, piece by piece.
He loved every second of it as I went over to where he was watching, then began to undress him.
“He was adorning my young body, particularly my feet… It wasn’t hard to get him wound up to the point where he wanted the rest of me.”
A picture from the night in 2001 shows Andrew, now 61, with his arm around Ms Giuffre’s waist.
The Prince said while he recognises himself, it is impossible to prove whether the image had been faked.
The house reportedly has a large master bedroom, a galley kitchen and underground garage.
The bathroom where Ms Giuffre claims they had sex is said to be “tiny”.
Reports in the US say the sale had hit problems with Maxwell’s bank.
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The Wall Street Journal said a day after her lawyers deposited the buyer’s £130,000 first payment, Barclays shut her account.
A letter from the bank cited regulations barring customers from putting it in a situation where it “might break a law, regulation, code or duty”.
Mr Basham said the family could still complete the deal, without the account.
Before Epstein’s jail cell suicide in August 2019, Barclays chief executive Jes Staley counted the financier as a client when he was at JPMorgan Chase & Co.
Last year, UK regulators opened an investigation into their relationship.
Mr Staley insists it was strictly professional.
A Barclays spokesman said the bank could not discuss individual accounts.
He added: “The CEO would not be involved in decisions to close accounts.”