For a modern contemporary design in a two-storey landed house, consider incorporating clean lines, neutral color palettes, and a mix of textures for a sleek and sophisticated look. Opt for open floor plans to create a sense of space and flow between different areas of the house. Integrate large windows to bring in natural light and blurring the boundaries between indoor and outdoor spaces. Choose minimalist furniture with a focus on comfort and functionality. Add pops of color through artwork, accent walls, or decor items to create visual interest. Incorporate elements like metal finishes, sleek lighting fixtures, and geometric patterns to enhance the modern aesthetic.