1. One spouse may not sell the house without permission. In the case of selling the house without authorization, the spouse can claim that the agreement is invalid and recover the property. However, if a third party purchases the real estate in good faith, pays a reasonable consideration and has registered the real estate, it cannot be recovered and can only claim that the seller compensates without authorization. The act of one spouse selling the house jointly owned by the husband and wife without the consent of the other spouse should be an unauthorized act. One of the spouses cannot sell the house jointly owned by the husband and wife separately. If they sell, they infringe the other party's property rights, and their behavior is tort.

2. Legal basis: Article 28 of People's Republic of China (PRC) Civil Code.

If one party sells the house jointly owned by husband and wife without the consent of the other party, the third party purchases it in good faith, pays a reasonable consideration and has registered the real estate, and the other party claims to take back the house, the people's court will not support it.

If one spouse disposes of all the houses without authorization, causing losses to the other spouse, and the other spouse requests compensation for the losses during the divorce, the people's court shall support it.

Second, what if one of the husband and wife sells the house without authorization?

If the spouse sells the house without authorization, it shall be handled according to the following circumstances:

1. If it is sold during the marriage relationship, one of the spouses may request the people's court to divide the property;

2. After divorce, if one party finds that the other party has sold the house jointly owned by husband and wife, it may bring a lawsuit to the people's court and request to re-divide the property jointly owned by husband and wife.