If you have a home that needs more space, you have probably considered adding a room to your house. While adding a room is often a great decision, you should also consider a detached building. Detached buildings are often called mother-in-law apartments because of an old custom in which mothers-in-law would live with their children. These buildings now serve just about anyone who needs extra space. Most typically, they are used for storage space or living space. If you are using them for storage space, you will have fewer requirements than you would for a living space. If you build…