Yes, finishing a basement does increase the value of a home especially if you put in a bathroom, washroom or any other additions. If the basement looks livable, it will definitely increase the value of your home. Most basements are used to store unused stuff, but when a prospective buyer does a walk through and see that a well constructed basement is in the house, you will be able to get your asking price to include any money you spent on fixing you that basement. You will be able to get a better price than your neighbors who haven't added to their basement. When you are listing the home, make sure you include your basement improvement.