30×40 house plan offers a versatile canvas for creating a modern, stylish, and functional living space. Whether you are looking for a single-family home (Singlex) or a two-family home (Duplex), this article will provide insights into designing a 1900 sqft floor plan that maximizes space and caters to your unique lifestyle. 30×40 house plan refers to a floor plan with dimensions of 30 feet by 40 feet, totaling 1200 square feet of space on each floor. With a total area of 2400 square feet (1900 sqft for living space and 500 sqft for common areas), this plan offers ample room for comfortable living without compromising on style or functionality. a single-family home, a Singlex design is an ideal choice. Here’s a suggested floor plan for a 30×40 Singlex house A well-designed 30×40 house plan offers the perfect combination of style, functionality, and comfort.