Housemon

Housemon is literally a giant house, and is a minion of the Dark Master Puppetmon. In the original anime, it is not a Digimon but rather a "toy" that Puppetmon made himself.

Digimon Adventure (anime)
When Puppetmon loses his hammer and is forced into a corner, he summons Housemon to his side in an attempt to escape, and brings him to "play" with the DigiDestined. Housemon falls apart once Puppetmon is defeated by MetalGarurumon and Matt.

Digimon Adventure (manga)
In the TOKYOPOP adaptation of the anime series, Puppetmon's mansion is a Digimon called Housemon. Housemon proves to be a powerful adversary, driving the DigiDestined back. Puppetmon had used it to attack the Digidestined when he had lost his hammer. It is destroyed when Puppetmon is defeated by MetalGarurumon. The other DigiDestined realize that Puppetmon was defeated after his section of Spiral Mountain disappears.