A person with such a placement expends a lot of energy in the home. There is a lot of activity in the home for this person. They have a subconscious desire to be the leader, to command everyone, a desire to dominate. They are the commander of the house: "Bring this, do that!"
They themselves may constantly be engaged in rearranging their home. Either they are constantly moving something, or they are building and remodeling the house, nailing or rehinging something. It's good if the person has a plot of land, and they can pour out this energy in work, digging the garden, or improving the territory, building a bath, expanding the house. Yes, anything! There will always be enough work on the plot, in the house for such a person.
But if there is no such work, such a person can become conflictual. Especially if Mars in the natal chart is strained, it can even come to physical abuse, and this is also one of the indications of parental divorce, or a harsh and rude father.
With harmonious aspects to Mars, this can be an indication that there is a lot of activity in the home, perhaps the person works from home (also such an active, restless environment) or they are from a military family.
In a woman's chart, Mars is also an indication of a man. It is very important that there be a man in the house. But it is difficult for such women to maintain calmness and harmony in the family. She tries to command, to lead, to shout somewhere, or she herself tries to do all the physical work - "I can do everything!" And then she starts scolding him. But this scenario is not necessary, it can also indicate the husband's profession: a builder, a master who does everything himself. But such a woman needs to command, there's no helping it.
Tense aspects of Mars in the house can also cause breakdowns, fires, so in this regard, one needs to be careful.
It can also be an indication of a break from the small homeland or a move far from the parental home.