Wow! Super lucky to have the luxury of extra space! I can't tell you what to do exactly with your space, but I would suggest to change out your garage door. I love this idea, and I would really like to utilize it when I build! If I can't have it...I'll just be happy that someone else is enjoying it in the meantime!

I'd suggest a shallow bench underneath the window and flank the windows with a base cabinet on one side and a desk on the other. Then open book shelves above the base cabinet and desk. I can't tell what the dark wall is on the one end. The steps need to curve from the door to the wall. A smallish sofa would be great for viewing a flat screne TV and a square table and 3 chairs up against the dark wall would be a great place for puzzles and games. Put a pendant over the table.

do you mean the garage door won't be in use ? then it's possible just to place storage units in front of it.

Hi sriram227. Are there certain areas of the home you are looking to control? We would suggest evaluating what your needs are and what parts of the home you'd like to control. What we have found is that consumers are looking for solutions to specific areas of the home. With the garage door being the largest moving object in a home, and the front door for many families, we have developed a smart home technology, MyQ Garage. MyQ Garage is a simple DIY product that can be added to your existing garage door opener (check compatibility) and gives you control direct from your smartphone from anywhere. It provides a simple solution to an issue we have all faced, leaving the garage door open. Here is some additional information: http://www.chamberlain.com/smartphone-control-products/myq-garage. We'd be happy to answer any questions you might have!