SpongeBob's house is a yellow, rectangular, two-story structure located in the underwater city of Bikini Bottom. It is made of wood and has a white picket fence surrounding it. The exterior is covered in various nautical decor, such as anchors and portholes, and there is a flag with the letter "S" on the roof. Inside, the house is just as quirky as its owner, with unusual features like a living room that doubles as a kitchen, a staircase leading to nowhere, and a bedroom in the shape of a pineapple. Despite its oddities, SpongeBob's house is a warm and inviting place, full of laughter and love. It is the perfect reflection of its owner's fun-loving and adventurous spirit.