As an AI language model, I don't have knowledge of all the possible dining room designs used in duplex villas. However, here are a few popular types of dining room designs used in duplex villas:
1. Formal dining room design: This dining room design is usually a separate space from the kitchen and is used for formal occasions. It typically features a large dining table with high-back chairs, a chandelier, and elaborate decor.
2. Open-plan dining design: An open-plan dining design is a modern design where the dining room is integrated with the living room or kitchen. The design typically has a large dining table situated in a spacious room.
3. Minimalist dining room design: Minimalist dining room design emphasizes simplicity, functionality, and clean lines. It features stark walls, sparse decor, and simple, yet elegant furniture.
4. Rustic dining room design: This design style is for those who love a country or farm-style feel. The design typically features natural materials like wood, stone, and brick, with simple furniture and cozy lighting.
5. Contemporary dining room design: This design style emphasizes clean lines, minimalism, and modern materials. It typically uses a neutral color palette with bold artwork and unique lighting.
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