Inside ‘the ultimate penthouse’ in Belgravia

Fifth and sixth floor apartment at the ultra-prime 21 Chesham Place development goes up for sale

Described by agents as “the ultimate penthouse”, the marquee unit at the revered 21 Chesham Place scheme in Belgravia has been offered up for sale.

Designed by Foster + Partners, the ultra-prime reinvention of a former British Telecom telephone exchange created six of London’s most-wanted laterals in 2008; and the attraction has only increased since.

The building last hit the headlines in 2014 when a billionaire mining mogul shelled out out £46.5m for the first and second floor duplex at a record-breaking £5,800 per square foot.

Now, in one of the instructions of the year so far, Knight Frank has been brought on to find a buyer for the uppermost unit, which occupies the entire top floors and packs a full 5,626 square feet of internal space plus an extraordinary 1,893 square foot roof terrace.

There’s some monumental entertaining space on the sixth floor and four bedroom suites below, all linked by a bespoke Travertine stone staircase, while residents’ facilities include 24-hour concierge, direct lift access, two underground parking spaces and storage.

Knight Frank’s Rupert des Forges told us: “What you have with Chesham Place is a state-of-the-art building in a true Belgravia address.

“It’s a very contemporary space with one of the best roof gardens in the area. It really is a one-off.”

The penthouse is being offered in turnkey condition on a POA basis.

Take a tour below…

This article replaces an earlier version, which contained a factual inaccuracy

Download the particulars and get the contact details here

Images courtesy of Knight Frank