Save for a lone refrigerator, rooms are strictly no-electrical-appliances zones, especially abjuring television sets, with their accompanying &ldquomediocre TV programmes&rdquo. This austerity might sound harsh but it quickly becomes endearing when you picture a team of French designers treading gingerly about the stiff, unaccommodating architecture of a long neglected building, at pains to not disturb it. Fifteen rooms have been expertly squeezed into two floors, each an individual experiment in light and space, ranging from quaint to outright whimsical. Some bathrooms are bigger than the bedrooms, while some are hollowed crevices jutting from the bedroom, disguised on the other side of the wall by seating. However, the pièce de résistance is the theatrical glowing spiral staircase, which dominates the central courtyard. The latter, despite its overhead canopy, is open to the air, making the common areas seem rather still and stuffy, unless you switch on the fans.