Designer Francis Sultana's spectacular 18th century mansion decorated for Christmas

This is a favourite time of year for interior designer Francis Sultana and gallerist David Gill, who delight in decorating and entertaining in their Piccadilly flat, a grand double set in Albany’s 18th-century mansion

The December parties cannot begin until the decorations are put up and, in previous years, that has been an occasion in itself. First to arrive, in the late afternoon, is the garden designer Alexander Hoyle. ‘Then Giud and Sarah from my office come by – they both love Christmas – and then our housekeeper joins in, too. We put on Christmas carols sung by Frank Sinatra and open the Champagne and the crisps,’ says Francis. ‘And, later on, we call in sushi from our favourite restaurant round the corner. The decorating can go on until 11 at night.’

The Christmas baubles, which Francis has collected over the years – some exquisite vintage ones, some quite kitsch – are taken out of storage in old Fortnum & Mason hampers. ‘The ceilings in here are over five metres high and the tip of the tree has to reach the top pane of the window,’ he says. Next door in the dining room, he and Alexander have surrounded the mirror and mantelpiece with a fringe of red Cornus sericea twigs, to match the patchwork red marble of the tabletop, which is laid for Christmas with a set of self-portrait plates depicting the artist Cindy Sherman in various disguises. The room is illuminated by tall gilded torchères in each corner, designed by Mattia Bonetti, which appear to grow out of bronze mesh stands that conceal radiators.

In the low-ceilinged kitchen next door, the small breakfast table looks out over Albany’s elegant Rope Walk. The Plain English kitchen island and cupboards, painted in glossy brown, can be concealed by drawing across a curtain of brown unlined leather, so visiting caterers can work in peace, while allowing guests to walk through to the vast white salon beyond. Here, the monochrome scheme, the transparent Zaha Hadid desk – at which David works – the plump curving sofas and the shiny Garouste & Bonetti ‘Ring’ table are all classic Francis Sultana, with the festive addition of some gilded twigs and lights above the fireplace.

In the space above the kitchen’s low ceiling is Francis’s peaceful bedroom and, before you reach it, his luxurious bath in the corridor. Ceramics by Jean Cocteau are displayed near the internal window beside the bath, with drawings by the Russian-born surrealist Pavel Tchelitchew on the walls. By contrast, the bedroom is almost monastic in its simplicity, its walls partitioned by leafy plaster pilasters reminiscent of Syrie Maugham – one of Francis’s favourite decorators. It is a calm haven after the bustle of Christmas lunch, which Francis loves to cook for quite a crowd – a mix of friends who have not been able to get away from London and his cousin’s family. ‘It has got so complicated lately. Now we have vegans, vegetarians and those who want fish, while David and I like turkey and all the trimmings,’ says Francis. ‘Then everyone sits down to watch the Queen’s speech.’ His blue salon is almost as grand as the monarch’s surroundings, viewed on the television, though there are paintings here that would never be seen on the walls at Sandringham.

Francis Sultana: francissultana.com