Ultrahouse: Greeting acknowledged.
When a house is alive and has a mind of its own, and can think and act independently. The reasons for this can vary from the house being haunted, being a monster by itself, to the house being robotic. The house may try to kill its owners or may be very helpful with chores. It's usually able to speak, but it doesn't have to.
If it's robotic it may have been made to serve its tenants and will make its owners breakfast and dinner and open doors for them. It can also go horribly wrong. Which it does a lot.
Different from Smart House in that it must be completely sapient and it doesn't have to be AI that makes the house sapient.
In the case that the house is haunted, whatever is haunting the house must be one with the house. They cannot simply inhabit the house.
- The Puppetmon arc of Digimon Adventure ends with Puppetmon using his powers to bring his mansion to life as a fighting machine. Kind of a wooden Humongous Mecha.
- In Cyborg 009, what appears to be a haunted house turns out to be the body of Cyborg 0012, who can see everything and everyone who wanders in. Her walls are blast-proof, she can move rooms around and utilize any weaponry equipped to her, and (as an addition in the 2001 anime) she communicates with guests via a ghost-like hologram.
- Monster House is a perfect haunted house example of this.
- Burnt Offerings, which has a dilapidated house kill people in order to acquire the energy necessary to repair itself.
- In the Sci Fi Channel original movie Habitat, a scientist's experiments in finding a more habitable place for humans to live turns his house into a huge jungle, and then more or less a house-shaped monster that is willing to defend its inhabitants against intruders.
- Disney Channel has a comedy movie Smart House featured PAT as the intelligence running a futuristic house won by the protagonist. She's played by Kathy Sagal of Married... with Children fame, so Hilarity Ensues.
- House on Haunted Hill (1999): The house as a whole has become one because of the Eldritch Abomination Mind Hive residing inside it, with an entire hallway at one point transforming into a gaping jaw.
- The House That Dripped Blood: While it is never implied that is intelligent, the real estate agent Stoker says that the house reacts to personalities of those who live there, and that the fates that befell the previous tenants were therefore of their own creating, and that they somehow deserved what happened to them.
- Nina Kiriki Hoffman's novels A Stir of Bones, A Red Heart of Memories, and Past the Size of Dreaming feature a magical (and benevolent) sapient house. It's haunted, but the ghost is an entirely separate entity from the intelligence of the house itself.
- The Amityville Horror house is sometimes interpreted as this. The below Simpsons example is based on it.
- In The Neverending Story, the House of Change is as instrumental in Bastian's recovery as Madam Eloya and Yor.
- The Shivers novel The Haunting House deals with one of these, and makes a point to spell out what the differences are between them and haunted houses.
- The Wizard Tower in Septimus Heap is described as a quasi-living object.
- The secret of the Lotus-Eater Machine in The Thief of Always. The mysterious Mr. Hood turns out to BE the house itself, the reason his Minion with an F in Evil can't be more helpful. When the house itself is destroyed in the climax, Hood rebuilds himself using its debris for parts. There's a picture in the book and it is terrifying.
- The original house of the Pandava Brothers in Aru Shah And The End Of Time is this. It also has complete control over all the illusions contained within.
- The eponymous house from the 99 Fear Street: The House of Evil trilogy was built on a mass grave of murder victims, which apparently tainted the land, with the evil infecting the house as it was being built. The house terrorizes and kills anyone who moves into it, and its evil can physically manifest in the form of a swarm of rats, which can assume human forms to lure in new tenants.
- Talking houses in The Muppet Show. Seen here
- The Addams Family's house appears to be this, at times.
- Rose Red.
- In The X-Files episode "Ghost in the Machine", security system of an office building has developed malevolent sentience.
- Eureka has Jack's house S.A.R.A.H. which has an AI with a mind of its own.
- In The Outer Limits (1995) episode "If These Walls Could Talk", an Alien Kudzu lifeform that crashed down on Earth has been slowly overgrowing an abandoned mansion, effectively becoming a living house in the process. It eats people by absorbing their biomass into itself.
- The New Avengers: In "Complex", the AI controlling the building seizes control of the building systems and uses them to murder anyone it thinks is getting too close to uncovering its secret.
- In the final season of Being Human (US), the group encounters Ramona, who they believe is the ghost of a girl killed in their apartment. They later come to learn that she was killed during a Satanic ritual and subsequently was turned into the spirit of the house itself... and she's none too happy when she learns about their plans to leave.
- The 4400: In the fantasy world created by P.J. in "No Exit", the NTAC building is alive and attempts to kill everyone inside of it. It succeeds in the case of Meghan, Shawn and P.J. himself.
- Baba Yaga's chicken-legged house.
- In the original 1E AD&D module, "I6: Ravenloft", one of the towers in Strahd's castle is alive and will try to knock heroes off its stairs or strike them with the halberds mounted along its walls.
- In The 11th Hour, sequel to The 7th Guest, the Stauf Manor was retconned into being both sapient and evil.
- RuneScape has the Dominion Tower.
- Suggested in Anatomy, and later outright confirmed when the house starts to grow a fleshy interior and kills the player.
- Tibby's mom in Rhythm Heaven Megamix is a living palace/temple that contains the final set of games. Tibby himself will become a similar structure once he grows up.
- Something Awful: Dungeons & Dragons: The party encounters one fairly early on, which they find out is called Gwendolyn. It alternates between hating them (trapping Joey briefly) and helping them (killing the Doppelganger which had been troubling the party and generally responding positively to Bananaramawicz's attempts at diplomacy).
- In Dofus: The Treasures of Kerubim, Louis is a sentinent, talking house who can rearrange his interior structure at will and even move. Why? The whole house is posessed by a Shushu demon, fused with it. He serves as a home for the main characters.
- The Simpsons:
- In Invader Zim, this happens when GIR gets his mind fused with the house's computer in "Invasion of the Idiot Dog Brain" and goes on a rampage through town (with the house transformed into a dog-like mecha) for tacos. Otherwise, the house computer is an AI itself.
- In one episode of Ugly Americans, the wizard Leonard is assigned to talk down a living house into calming its emotional, tenant-killing behavior.
Leonard: Look, it says here you were built in 1935. How about we start acting our age?House: This from an ancient wizard in cowboy boots?Leonard: Would you like to talk or be destroyed?
- An episode of The Real Ghostbusters has this as a twist. Drawn to an old mansion after the disappearance of two teens, the team know something is going on when all the residents are wearing different period clothes, despite it being Halloween. One of the residents, a woman in a French maid outfit, repeatedly runs around hurriedly, repeating "Mason must feed soon." Resident ladies' man Venkman realizes in the finale that she actually is French and is saying "Maison," leading the boys to realize the house itself is the malevolent entity and the people inside are just the spirits of it's previous victims.
- Some episodes in SpongeBob SquarePants imply that Squidward's moai house is sentient, albeit Played for Laughs. In "The Secret Box", it attempts to eavesdrop on SpongeBob and Patrick's conversation, while in "Funny Pants", when SpongeBob is crying all day and night over his supposedly broken laugh box, the moai suddenly gains a pair of giant blue hands to cover its ears in annoyance.
- "Mike the Evil Living Building" from The Fairly OddParents! episode "The Big Superhero Wish!"