“Here, in a stately château, there Iived a widowed gentleman... and his IittIe daughter, Cinderella.”
―The Narrator describing the Château
The Château was where Cinderella and her late parents once lived. Although it was once a grand and stately building, it fell into "disrepair" in the years following the death of Cinderella's father, for her stepmother neglected to care for it, preferring to squander the family fortune she inherited from her late husband on her daughters, Anastasia and Drizella.
When Cinderella married the Prince Charming and became a princess, she left her stepmother's gloomy and dilapidated château. Major, Bruno, the mice and her bird friends also left with her. Lady Tremaine forced in place her own daughters to do all the chores instead. However, when she and Drizella were defeated once for all in Cinderella III: A Twist in Time by becoming maids in the King's Castle, the château became completely abandoned, as Anastasia came to live with the royal family and the Tremaine's former pet cat was left alone in faraway woods.
Attic: Located in the tower, this is where Cinderella used to sleep. It has a long staircase to reach it and has a minor tower that can be reached by a door inside. This is also the place that the mice made Cinderella's Dress.
Lady Tremaine's Room: This is where Lady Tremaine and Lucifer slept until the latter became a maid at the end of the third film and was forced to work in the King's Castle. It is accessed by the third door in the hallway.
Kitchen: Accessed by a door in the hall, the Kitchen is were Cinderella is often found working, be it cooking or serving her stepfamily.Bruno also slept here until he was forced to left by Cinderella when he attempted to attack Lucifer. The Kitchen has three bells connecting the Tremaine rooms and they used it to call Cinderella.
Drizella's Room: Where Drizella used to sleep until she became a maid in the King's Castle alongside her mother at the third, final movie.
Anastasia's Room: Where Anastasia slept until she moved away to the King's Castle and became her stepsister's third lady-in-waiting. It is where Lady Tremaine tells her daughters about the unknown maiden who lost one of the Glass Slipper, and where Cinderella for the first time denies doing the Tremaine's chores.
Music Room: At the end of the Hallway, the Music Room is where Lady Tremaine and her daughters used to practice music.
Hall: It is the first place reached when entering the château. Cinderella was seen cleaning its floor while singing "Sing, Sweet Nightingale". Later, unfortunately Lady Tremaine breaks one of the enchanted slippers, however Cinderella was with the other and it fitted perfectly on her feet.
In Cinderella, the story mostly takes place inside the château. It depicts Cinderella's daily life with her helpful animal friends and her abusive stepfamily after her father's passing. It shows her doing the chores of the house and how she's mistreated by her stepmother, her stepsisters, and Lucifer, the mischievous cat. The once-grand home has fallen into disrepair in the years following the death of Cinderella's father.
The only appearance of the château is at the last segment, An Uncommon Romance, where Anastasia falls in love with a baker, whom her mother forbids her to be with because he's not of high social status. Cinderella forgives Anastasia for all of the mean things she had done to her in the past, and Cinderella and her animal friends do everything they can to help Anastasia and the baker get together.
The château makes its last appearance in Cinderella III: A Twist in Time. At the beginning of the movie, it's shown that Cinderella's stepfamily is now stuck doing all the chores that they had forced Cinderella to do in the past. But now that Cinderella's a princess and living at the castle with her husband and father-in-law, she can't do any of the chores for them anymore. The château had also lost its upkeep since Cinderella left. It's also the place where Lady Tremaine took possession of the magic wand of the Fairy Godmother and how she turned back in time in an attempt to destroy Cinderella's happy ending.
When Lady Tremaine turned back time, the grim condition of the château went back to being nice and clean, as Cinderella was still living there at that time. The Tremaines leave the château and move into the castle and Cinderella follows them there. When Cinderella becomes the princess again and Anastasia moves into the castle with her, Prince Charming and the King, Lady Tremaine and Drizella move into the castle too, but are given their ultimate comeuppance by being forced to work as maids at there for their crimes. It is unknown what happens to the château afterward, although it was most likely abandoned and left to rot.