To provide a storing part structure of a dwelling house improved in comfortability and beauty without the constraint of an opening and closing system of a door disposed in a shared space by effectively using the space in the storing part provided in a building.

In the storing part structure of the dwelling house, a sliding door 2 and the storing part 1 provided in a passage and an entrance in a building (a unit dwelling house 10) are disposed adjacent to each other. In the structure, the storing part 1 is provided with a retraction space for retracting the sliding door 2 in the storing part 1 and storing the same therein.