To furnish a Cannes apartment that has to work both for short seasonal stays and for full-time living, follow one principle: every room should function when you lock up for six months and when you live there daily. At the atelier we often work on this double life for owners settled between the Croisette, Le Suquet and La Californie. In Cannes the light decides almost everything. In the morning it comes in clear and cool through the sea-facing facades, then it turns and warms the south rooms late in the day. An apartment furnished for that light stays comfortable in August and in January alike.

Cannes is not one single setting. A two-room flat at the foot of the Forville market is not furnished like a large Belle Époque apartment on the Croisette or a panoramic terrace up in La Californie. What they share is the mixed use. You want a place ready to take you in after a flight, able to host friends in summer, and calm enough to spend a full winter in without feeling like you live in a rental.

Start with use, not with style

Before you choose a sofa or a colour, ask the real questions. How many weeks a year do you sleep here. Do you entertain a lot, and more at the table or on the terrace. Will the flat sometimes be let when you are away. The answers change everything.

A home lived in year-round can take more delicate materials, a proper desk corner, a kitchen built for cooking often. A place used by seasons asks for tougher choices and storage that locks for your personal things. When both uses overlap, we look for the piece that earns its place either way. A wide dining table doubles as a desk in winter. A good sofa bed absorbs summer guests without turning the living room into a dormitory.

Cannes light and the palette

Sea light is strong and a little cold in the morning, more golden in the afternoon. Pure whites soon read hard and bluish. We prefer off-whites, sand tones, a warm grey, and we keep bright colour for things that are easy to swap, cushions, ceramics, a throw.

For a Cannes flat, a mineral base works well all year. Think of a very pale tinted plaster, a stone floor or a light parquet, walls close to natural linen. On that base you lay a thread of colour that recalls the sea and the pines: a faded blue, an olive green, a touch of ochre. This palette holds in high summer, when the shutters filter a hard light, and in winter, when the sky stays clear but low.

Art matters more than ornaments. A single painting or a large photograph gives a living room character and makes you forget a piece came from a catalogue. It is often the most worthwhile decorating spend in a seaside flat.