20x50 Multi-Floor House Design- West facing plot.

I have a compact 20 ft × 50 ft plot and I’m ready to put up a sturdy ground-floor 2-BHK that will comfortably house my parents for the next three to five years. From day one, though, every square foot has to be optimized for future income, so the core design priority is maximum rental potential. After my parents move, I plan to rent out the ground floor and add two more floors, each containing one self-contained 2-bedroom flat.

Here’s what I need from you:

• A value-driven concept that keeps construction costs sensible today while making it easy to extend upward later.
• Detailed floor plans for the ground level and preliminary stacking plans for the two rental floors (one 2-bed flat per level).
• Structural layout and column grid sized for the full three-storey load so I don’t face costly retrofits when the upper floors go up.
• Room-by-room furniture layouts showing good circulation, storage solutions, and abundant light/ventilation.
• 3D exterior and interior renders that let my parents visualise their future home and help me pitch the rental units when the time comes.
• Basic service drawings (plumbing, electrical routing) in AutoCAD/Revit format that align with local code and simplify approval.

Hand-off formats: native CAD files, print-ready PDFs, and high-resolution JPG/PNG renders.

If you have experience squeezing the most rent out of small urban plots—especially with phased construction—let’s make this project shine.
Attached drawing is just for an idea. i am expecting a better one. Water Tank could be in parking space.