Thanks blrsiteseeker.
I think I got an idea on the hanging staircase, I shall try to get that designed after talking to the architect.

Hi,

My house is in midst of construction and I am little need of help here with staircase in my duplex.
The staircase is planned next to kitchen which will eat away into dining area, I will need to use the area in best/optimized area.

I was planning to have very light yet elegant staircase but ...