Designing a modern small house with two floors can be an exciting project. Here’s a conceptual design to get you started:

Exterior:

• Sleek Facade: Opt for clean lines and minimalist design elements.
• Mixed Materials: Combine materials like wood, glass, and metal for a contemporary look.
• Compact Footprint: Keep the footprint small to optimise space utilisation.

Ground Floor:

• Open Plan Living: Design an open-plan layout for the living, dining, and kitchen areas to create a spacious feel.
• Functional Kitchen: Install modern appliances and utilise space-saving storage solutions.
• Guest Bedroom/Study: Include a flexible space that can function as a guest bedroom or a home office.
• Bathroom: Design a compact yet functional bathroom with modern fixtures.

Second Floor:

• Master Bedroom: Create a cozy master bedroom with ample storage and a private balcony if space allows.
• Secondary Bedroom: Design a smaller bedroom suitable for children or guests.
• Bathroom: Include a shared bathroom with contemporary fixtures and fittings.
• Utility Area: Allocate space for a laundry area or storage.

Additional Features:

• Outdoor Living Space: Incorporate a small patio or deck for outdoor entertaining or relaxation.
• Green Features: Consider implementing eco-friendly features such as solar panels or rainwater harvesting systems.
• Smart Home Technology: Install smart home technology for energy efficiency and convenience.
• Vertical Gardens: If space is limited, consider vertical gardens to add greenery without sacrificing floor space.

Remember to customise the design to suit your specific needs, budget, and location requirements. Additionally, consulting with a professional architect or designer can help refine the design and ensure feasibility.