On Thessaloniki’s seafront, ON Residence restores the 1920s Olympos Naoussa building behind its ornate pale façade and iron balconies. Rooms combine contemporary minimalism with parquet, marble and carefully retained architectural details, while sea-facing categories look across the Thermaic Gulf. Olympos Naoussa restaurant returns to the building as its principal social space, joined by a bar and intimate public rooms. The tiled balconies, yellow shutters and long waterfront perspective connect the hotel with both the city’s interwar architecture and its active promenade.