I think it looks good on the paper but to make a code compliant staircase you will have to call a stair company have them do the layout and they will tell you if you have room or not and give you what options you have. In here you wasting your time. With that said, they can probably fit 3' landing with 2 stairs going down and doing 90 degree turn with 10 stairs, that will set you at around 8"+ riser height, here in NJ you can have a riser height 8 1/4" and min thread depth 9" so it might just work. You have to check your local code and see what the stair requirement is for your area and work from there. Good luck

You should contact a staircase contractor to provide info and pricing for this cantilever stair design. http://www.caliperstudio.com/fabrication/project-types/stairs/stone-cantilever-stair

Hello Ramakrishna M, This question sounds more for a structural engineer. Also you will need to check if it is legal to do it in your house in the first place especially if you are planning to make an RCC staircase. An Interior designer can help to beautify your space and provide advice on the planning at the max. I could not answer your question directly but hope it puts you in a better direction. If you need Interior Design services feel free to contact us: 9820942680, designospire@gmail.com, Follow us on Facebook @designospireIDS www.designospire.com

Sir, Its gonna cost a bomb now. There a few space saving options like spiral stairs, ribbon stairs and ladder stairs. Another option which wouldn't save much area but still open up the space is open ledge stairs . Thanks, Amit CORNERSTONE DESIGNS Bangalore