Agree with all above. First think what you need the extra space for - you have lots of options. Also remember it is a walk through, so a 'public' space. If used as a study would be best if not too messy or private.

I really like the storage ideas, suggested here; as we ha d a small flat, which had a built-in storage area under the stairs. Looked good and was very useful and practical. If you don't need a storage, I can imagine a cosy reading corner; a comfy sofa, where you can either sit or lie down, scatter cushions...if enough space, you can put a bookshelf behind the sofa. As a powerpoint already there, you can stand a nice-looking, practical lamp; for reading or to create a pleasant atmosphere :) Good luck!

Hi everyone, thank you all so much for your comments- each one has been really helpful & thank you to those who have complimented the work. I still fluctuate with whether I love it or not, but as jdublya says, i think its just a mid reno freak out! My original colour choice was a dark brown, but unfortunately following other suggestions, it ended up being black. Anywho I will continue to push through with all the other plans- light grey walls, white door frames and doors, and black handles. Then have a think about wall art - frames etc. Once all of that is done i will post an update and let you know if we decide to change anything with the stairs. Also thought I'd mention that the colour of the flooring on the first level has come out a lot more red than it actually appears in real life. I am quite excited to finish the project but of course with limited funds, 3 kids, 2 dogs and a kitten it takes a lot of time! Sit tight, will update as and when :) Thanks again all, your encouragement is encouraging ;-)

You could add a chaise lounge or a comfy chair and table for a reading nook or an office area if you need one, a computer area but whatever you do don't over clutter it keep it sleek and sexy and or a comfy chair as suggested with a little side table for reading, I also like the idea of a place to put coats, shoes etc if you must enclose it. Maybe even a small wine bar? with a couple of stools. I decided to google is and will give you a link to many pics to give you more choices. https://www.google.com.au/search?q=pics+of+what+to+do+with+space+behind+floating+stairs&tbm=isch&tbo=u&source=univ&sa=X&ved=0ahUKEwjFy-n9p4vZAhUEF5QKHSvhAOMQ7AkISg&biw=1280&bih=893