Installation Design for a 3 story Domestic House

I was called up to design a complete electrical installation design for a 3 story house that was pending construction. I prepared wiring diagrams and single line diagrams for each floor and the earthing diagram promptly considering the lighting, HVAC requirements and the appliances to be used.

Single Line Diagram of MDB +DB2
Wiring Diagram of 2nd Floor
Earthing Diagram