I have a friend with a staircase a bit like this. Great for storing things.

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

break off concrete arch. if what i see above the door is the kichen vent, install extract duct up and out along the ceiling.

Rohanth, See if this inspires you.. alongwith some of the ideas suggested by RMs above. If its feasible please do away with the grills and replace them with tempered glass. You may have to play with lighting to enhance this area. You can call us ..its easier to explain over a call . Thanks Nitin CORNERSTONE DESIGNS Bangalore.