M Oostduinkerke is a minimalist interior located in Oostduinkerke, Belgium, designed by Frederic Kielemoes. The penthouse is characterized by bold materials including marble, brass, and walnut. The brass elements are used mainly as accents, bringing life to the cabinet handles, faucet, and shelving. The marble countertops have a slightly warmer tone to complement the brass accents. Walnut was used to provide the base structure of the cabinetry, storage, and doors.