Before the question can a divorced man sell his house is answered, it is helpful to understand what the specific circumstances are. Here are some specific cases and how they would each be handled.
Spouse is the co-debtor but not co-owner - while this is a rare occurrence, if a QDRO was issued that requires the spouse remain as debtor, it is possible that they may be listed as a debtor but not as an owner. In this case, it is not necessary to obtain their permission to sell the marital home;
Spouse is the co-owner - some QDROs do not remove the spouse as the co-owner of the home with the caveat that if the home is sold, the spouse must be bought out. In these cases, the spouse must be consulted before the home is sold as they will have to give their permission;
Minor children - though rare, a QDRO may state that the husband must maintain the marital home until the children are of legal age, unless the sale is agreed upon by the spouse;
Spouse buy-out - the more common circumstances of a divorce are that one spouse buys the interest in the property from the other spouse during or shortly after divorce proceedings. In this case, the home would be solely the property of one spouse, and no permission is needed to sell the home.