A spokesman for the pair said: “A contribution has been made to the Sovereign Grant by The Duke of Sussex.
“This contribution, as originally offered by Prince Harry, has fully covered the necessary renovation costs of Frogmore Cottage, a property of Her Majesty The Queen, and will remain the UK residence of The Duke and his family.”
Grade II-listed Frogmore Cottage in Windsor was a wedding gift from the Queen but remains empty after Meghan and Harry left for LA with baby Archie.
Originally, the couple were said to be paying rent of $32,000 a month to keep the home if they returned to the UK.
But they now live in a $19m nine-bedroom and 16-bathroom mansion in upscale Montecito, Santa Barbara.
Frogmore had fallen into disrepair before the couple moved in.
Builders worked around the clock for about six months so they could move in before the birth of baby Archie.
It needed extensive rewiring – including a new electrical substation – and the installation of modern gas and water mains.
The public paid for the kitchen, bathrooms and even fitted wardrobes, as well as the services of a renowned interior designer.
Wooden ceiling beams and floor joists were also replaced while inefficient heating systems were updated.
But the hefty $4.3 million repair bill was covered by the taxpayer.
Harry had previously clashed with the royal family over funds after marrying former actress Meghan Markle in 2018.
According to bombshell biography Finding Freedom, the Duchy of Cornwall “controlled the purse strings”.
Authors Omid Scobie and Carolyn Durand claimed: “The brothers sometimes had to vie for additional funds for projects from their father, who also helped cover expenses related to Camilla and some of those for his sons (including Kate and Meghan’s wardrobes).
“They actually genuinely have to debate who gets what amount of money from their father to fund their projects,” an aide said.
“Add in the fact that there is an inherent hierarchy and that is really tricky.”
This story originally appeared on The Sun and is republished here with permission.