All property owned before marriage is considered non-marital property, or separate property. This means it is not subject to division during a divorce. This includes property acquired before a marriage as well as property designated as separate in a prenuptial or postnuptial agreement. If, however, the non-marital property is commingled with marital property, such as a home purchased before marriage that was invested in and paid off by both spouses during marriage, all or a portion may become shared.