Deal sealed on £14.5m Adam brothers mansion in Marylebone

International interest in 13,000 square foot Portland Place townhouse with planning for a resi conversion

An Adam brothers townhouse on Marylebone’s Portland Place has been snapped up after attracting interest from all over the world.

Once a glorious family home, the Grade II* listed virtual freehold has languished as offices and a rather dowdy conference centre in recent years. Planning was granted last summer for a conversion back to its original use as an epic single dwelling and the whole thing went up for sale at £14.5m. We hear a deal has just gone through, after serious enquiries came in from the US, the Far East, China and the UK.

At nearly 13,000 square feet it’s quite the canvas, although thankfully some original features have survived on the ground and first floors. The formal receptions are as grand as you’d expect from the address, and the ornate ceilings and curved staircase are of particular note.

Laid out by Robert and James Adam for the Duke of Portland in the late 18th century, Portland Place is one of London’s best examples of Georgian architecture, and houses world famous institutions including the Royal Institute of British Architects, Broadcasting House and the Langham Hotel.

James Bailey of Henry & James, who sold the property, told us: “There has been a phenomenal amount of interest in Portland Place since it came on the market. Buyers from the US, the Far East, China and the UK viewed the Grade-II* Listed property in the heart of the West End. The building stood empty for many years with its perfect proportions and glass atrium above the statement staircase, but now the new owner will breathe life into this beautiful building. We are delighted that we have sold Portland Place. It comes with a lease of more than 900 years.”

There’s been a smattering of landmark deals along here lately.

Knight Frank sold No. 33 – used as a key location in The King’s Speech, Amy Winehouse’s Rehab video, and many high society sex parties – for £27m in 2015. We heard at the time that the new owners – Brits “with an interest in unique historical buildings” – plan to create “one of the Capital’s most special and important family houses”.

And just earlier this year, there was the sale of the remarkable £17.95m Ambika Penthouse, generally considered one of the best top floor apartments in the West End.

In Pictures: £14.5m Adams brothers mansion on Portland Place

Images: Henry & James