It's probably safe to say that people decorate their homes with all kinds of investments in mind. How far your investment goes depends partially on factors such as who is doing the work, if custom pieces are being used, quality of product, and what pieces are being kept just to name a few. At an absolute minimum, you should expect to spend $5,000 just on design elements for a single room. This does not include the price of the design services or any physical labor. Some people can decorate a room with $5,000 and some with $50,000 - your design investment is yours to explore, but it's a good idea to start with a baseline and share that with your designer. Sharing your desired investment with your designer allows him/her to help you set realistic expectations, focus his/her efforts appropriately when searching for products, and ensure the scope of the work is inline with your desired investment.