Residential interior design transforms a house into a home by blending artistic creativity, functionality, and comfort to create a personalized and inviting space. It involves thoughtful space planning, analyzing how each area will be used and ensuring efficiency and flow. Effective space planning considers the needs of the occupants and results in a detailed space plan, which outlines the requirements and layout of each room. The goal is to create a harmonious environment that is both beautiful and practical, enhancing daily living.