Pokémon Pokopia: Quick Guide to Registering a Real-Looking House
Nintendo Life shares a concise video guide on activating a house in Pokémon Pokopia on Switch 2. To register an “empty house,” you only need a door and some connected blocks—the walls can be just one block high and you don’t need a roof. After activating the space, you can furnish it with three items (for a Pokémon to move in) or use a Ditto Flag to meet living requirements. A more detailed Pokopia guide is linked on the site.