In Pictures

There is "significant scope for a purchaser to buy both penthouses and combine them into one extraordinary property subject to the necessary consents," says Savills.

"Cobstone Mill has to be seen to be believed and this is even before you bring into consideration the home’s extensive film history," comments Savills.

This New England estate on a private peninsula was once the most expensive home in America.

'One Cluny Mews puts Salboy firmly on the London map as a developer and funder of high quality housing in sought-after places,' says co-founder Simon Ismail.

Designed by Fletcher Priest and Taylor Howes, The Olayan Group's Knightsbridge Gardens is being billed as 'the UK’s first super-prime residences-to-rent development'.

Almacantar's The Bryanston features the highest terraces overlooking Hyde Park - adding significant value to some apartments.

Now a fully-modernised private mansion with interiors by Hubert Zandberg, this Portland Place townhouse starred in a Hitchcock movie and served as a dictator's London base.

Woodcote 'carefully balances a sense of grandeur with the needs of modern family life and is steeped in architectural and local history', says Savills.

Cipriani Residences Miami, the brand’s first-ever ground-up development in the US, will offer a combination of 'Italian hospitality' and interiors by 1508 London.

Built as the entrance-way to Rutland House, this unique property provides a pied-à-terre apartment and office space with a private cobbled courtyard, moments from The Ritz.

Edoardo Mapelli Mozzi takes us on a tour of his latest project: a sky-high apartment overlooking Central Park that's expected to hit the market with a US$54.6mn guide price.

Hints of Roman heritage shine through in this 'quite magical' Gloucestershire family home.