Designing a big space modern architecture house offers a plethora of exciting possibilities. Here are some ideas to consider:

• Open Floor Plan: Embrace the concept of open living, dining, and kitchen spaces. This creates a sense of spaciousness and fluidity, ideal for modern living.
• Floor-to-Ceiling Windows: Maximise natural light and create a seamless connection between indoor and outdoor spaces with expansive floor-to-ceiling windows. This also offers stunning views of the surroundings.
• Sustainable Features: Incorporate sustainable design elements such as solar panels, green roofs, energy-efficient appliances, and passive heating and cooling systems to reduce the environmental impact and increase efficiency.
• Minimalist Aesthetic: Opt for clean lines, simple forms, and a minimalist aesthetic throughout the house. This creates a sense of tranquility and allows the architecture to shine.
• Integration of Nature: Blend the boundaries between the interior and exterior by incorporating elements of nature into the design, such as indoor gardens, atriums, or courtyards.
• Smart Home Technology: Integrate smart home technology to enhance convenience and efficiency. This can include automated lighting, climate control, security systems, and entertainment systems.
• Luxurious Amenities: Consider adding luxurious amenities such as a home theatre, spa-like bathrooms, a wine cellar, a gym, or a swimming pool to enhance the comfort and entertainment options within the house.
• Flexible Spaces: Design flexible spaces that can adapt to different needs and activities. This could include multipurpose rooms, home offices, or guest suites that can be easily transformed as required.
• Use of Natural Materials: Incorporate natural materials such as wood, stone, glass, and metal into the architecture and interior design to create a sense of warmth, texture, and authenticity.
• Integration of Art: Incorporate art and sculpture into the design to add visual interest and personality to the space. This could involve integrating built-in display areas or creating focal points for artwork.

Remember to tailor the design to your specific preferences, lifestyle, and the site’s characteristics to create a truly personalised and exceptional modern architectural masterpiece.