Going Futuristic
If you don’t have a garden, you might want to try getting things in its futuristic sense for your interior design. If you got the money, it would certainly help if you would really want to have a futuristic look inside the house, starting with the paints of black and white within your house or apartment. You can try to have a change on your walls and ceilings by putting other shapes like diagonal linings for the edges of the walls instead of the normal straight, vertical edge.
You can also go for plain furniture with straight lines to keep the look clean and complement the style that you are trying to get. This would only work of course if you have the money and determination to get things looking great and new. There should also be lots of web sites out there that you can take advantage of so you could get good deals.