Modern 30x45 Ft Duplex Residential Floor Plan with Staircase Design

This drawing shows a detailed 30x45 ft duplex residential floor plan with a well-organized staircase layout and clearly marked internal spaces. The plan includes ground and first-floor arrangements with properly defined living room, bedrooms, kitchen, dining area, toilets, and circulation passages. All rooms are provided with accurate measurements, wall thickness, door and window positions, and structural alignment. The staircase is designed with correct tread and riser dimensions, connecting both floors efficiently. The layout also indicates open spaces, ventilation areas, and furniture placement for better space understanding. This floor plan follows standard residential planning norms and supports functional movement within the building.

The drawing also presents technical drafting details such as dimension lines, section marks, grid references, and level indicators. It maintains proper scale and layering for easy editing and presentation. Electrical points, plumbing zones, and service shafts are marked where applicable. The plan supports further 3D modeling, working drawings, and construction documentation. With clear labeling and an organized layout, this duplex house plan helps in understanding structural flow and interior planning. The file is suitable for professional design use, construction reference, and architectural coordination based on accurate residential planning standards.