The cost of renovating the new Kensington Palace home of Duke and Duchess of Cambridge is to reach £4 million pounds, according to reports.
The taxpayer will foot the bill for extensive work on the property, including installing a new roof, overhauling the electrics and carrying out significant plumbing works.
A royal spokesman said repairs and refurbishments - reported to cost in the region of £4 million, though this figure was not confirmed by the royal household - would also see a "significant amount of internal building" to "return the residence to function as a living space".
He said William and Kate "paid privately" for all the internal furnishings, including carpets and curtains. They were also at pains to ensure that the specification is not extravagant.
More top news
His mother Princess Diana was killed in a car crash in Paris in 1997 when he was just 12 and his brother William was 15.
The 21-year-old, who was arrested on Sunday, also allegedly injured two other people in the attack in the German city of Reutlingen.
She was going to the aid of a family member who got out of the car in the middle of the park and was dragged away by a different tiger.