The Duke and Duchess of Sussex will be soaking in the new tub that takes 120 man hours to be beaten out.
It is reported that the bath is from Soho House supplier William Holland and – depending on the model – could cost up to £5,000.
The free-standing bath will be complemented by bathroom tiles provided by another supplier for the Soho House brand, Bert & May.
The company take tiles salvaged from old buildings in Spain and then craft them into new tiles that sell around £5 each.
Meghan is close friends of Soho House director Markus Anderson and the royal couple have bought furniture from their range.
It has been revealed that £2.4million of taxpayers money was spent refurbishing Frogmore Cottage.
Accounts for the year up to last April showed the large sums spent on the Windsor home.
The couple moved into their new house last April, a month before baby Archie was born.
The real figure of how much taxpayers’ money will be spent is more likely to be around £3million with this financial year taken into account.
Work carried out up to April included the installation of a luxury kitchen, a bedroom renovation while fireplaces, floors and staircases were all replaced.
The couple used environmentally friendly products including vegan paint to decorate Frogmore Cottage.
Meghan and Harry have already been forced to replace luxury bedroom carpet after it was muddied by their two dogs.
It is reported that a cleaner attempted to remove the dirt but caused more damage to the delicate materials.
Daily Mail sources said: “The cleaner obviously didn’t realise the strong cleaner would damage it.
“It wasn’t a large section of carpet but the whole thing had to be taken up and replaced.
“The cleaner was devastated but apparently the couple didn’t seem worried in the slightest about the extra cost.”