Ten Trinity Square is set to combine central London living for the buyers of its 41 homes with the luxury of a five-star hotel.

Restored over four years by multinational investor and developer Reignwood Group, the Grade-II listed building has retained many of its original features it had when it opened close to the Tower of London in 1922.

Residents can use the services of the five-star Four Seasons Hotel – including its concierge – but can also enter the building through one of three private entrances if they wish.

Available to residents and hotel guests is a 25,000sq ft spa, a grand ballroom, a private members club, which includes a specialist Château Latour room – the only outpost outside of France in the world.

Living room within one of the 41 residences

There will also be two restaurants on the ground floor – one Asian and one French, both headed by internationally renowned chefs, although their identities have yet to be announced.

The residences are being jointly sold by Strutt & Parker and Christie’s, and will be completed within the last quarter of 2016.

Strutt and Parker’s Tess Cavendish said: “It is the only development in London that combines high luxury living with five-star hotel service – all within a landmark building, which is also a World Heritage site. There’s nothing else like it.”

Prices start at £5 million.

Go to tentrinitysquare.co.uk for more information.

A little bit of history on the development

Ten Trinity Square is on a site which has been inhabited since Roman times.

The building is close to where 17th century diarist Samuel Pepys worked and lived. His Great Fire of London account in 1666 was written just a stone’s throw from the site at his office in Seething Lane.

Author of Samuel Pepys: The Unequalled Self Claire Tomalin said: “Ten Trinity Square’s Thames-side location provides a window into Pepys’ empire – the naval expert, the writer and the first modern man.

Samuel Pepys in the UN Room

“This section of London also reaches back to the Romans – there is a tremendous amount of physical history here, but also emotional.”

In 1922 Ten Trinity Square was opened as the Port of London Authority Headquarters and, in 1946 its ballroom hosted the Reception of the General Assembly of the United Nations.

The building was severally damaged in the Second World War, but, after a renovation in 1970, it became the European headquarters of insurance broker Wills Faber Limited.

The UN Room, which hosted the reception of the General Assembly of the United Nations in 1946. This will become the residences' ballroom

Reignwood Investments UK president Songhua Ni said: “Ten Trinity Square is an iconic landmark, constructed without compromise.

“From the first moment I saw the building, I understood that its history and heritage are what makes it truly unique.”