It is the private London hospital with luxury facilities where the rich and famous go to give birth.
So it's no wonder that Princess Eugenie reportedly welcomed her new baby son Ernest George Ronnie Brooksbank at the famous Portland Hospital.
It has seen many famous babies come into the world, including Eugenie herself back in 1990 and her eldest son August two years ago.
In fact, her cousin's wife Meghan Markle also gave birth to her oldest son Prince Archie there back in 2019.
A maternity stay at the hospital can cost anywhere between £7,145 and £500,000 depending on how many extras the mum-to-be opts for. The average stay is about £30,000.
The hospital offers both consultant-led and midwife-led maternity units and is the only private hospital with an on-site neonatal intensive care unit.
Expectant and new mums staying at The Portland will get to enjoy some delicious meals prepared in the hotel standard kitchen, which provides around-the-clock fine dining.
A cook, who once worked there, explained: "We can get foie gras, lobsters and oysters if people want them, we have fantastic champagne, Dom Pérignon if people want it."
The hospital also offers a range of high-end facilities to guests, including a private in-house photography company for newborn photoshoots and a gift shop that offers trinkets like silver and bronze casts of babies' feet.
While mums are treated to one-on-one care, their newborns are cared for by staff, and there is a nursery on the first floor.
Babies are electronically tagged with a computer system monitoring their exact location at any one time.
And new babies don't have to sleep in standard plastic cots.
Children's furniture maker Dragons of Walton Street has a range available for use at the hospital which includes a Moses basket costing £3,500 and even a four-poster cot.
Molton Brown toiletries are available for everyone who stays there.
The former chief executive of the hospital Janene Madden once revealed: "I have seen somebody spend £500,000.
"We have princesses from the Middle East who deliver here quite regularly.
"We have celebrities and individuals of very high net worth and they are used to getting what they want. And if they want 10 additional rooms or 20 additional rooms we will provide it.
"As long as that woman or husband can pay for what they are requesting we will do our best to provide that.
"What I can advocate here is it is like having a holiday, when you deliver at the Portland you get to use the nursery and your baby is only bought back for feeding time so you absolutely after two to three nights you leave here fit and well and ready to face the challenges of motherhood."
