This survey introduces Decovision, a smart and modular interior design platform that uses AI, machine learning, and web technologies to offer a personalized home decor experience. It integrates real-time room visualization via Stability AI's image generation API, a style recommendation engine based on a user quiz, and a furniture chatbot that filters IKEA products using natural language queries. Built with Flask and SQLite, the platform emphasizes accessibility and cost-efficiency through open-source tools. Decovision’s scalable architecture supports a human-centered design approach, helping users transform preferences into actionable design outputs regardless of expertise. This survey highlights the system’s potential to simplify and democratize interior styling through intuitive AI-driven interactions.