TLDR: Apartments are self-contained housing units that are part of a larger building. They can be rented or owned, and come in different sizes and styles.

An apartment, also known as a flat or unit, is a type of housing that is located within a building. It is a self-contained living space that usually occupies one floor. Apartments can be found in various types of buildings, such as high-rise towers, low-rise buildings, or even converted houses. They can be rented from a landlord or owned by the occupant.

The term "apartment" is commonly used in North America, while "flat" is more commonly used in the UK and other English-speaking countries. In some countries, the term "unit" is used to refer to both apartments and rental business suites.

Apartments can vary in size and style. There are studio apartments, which are small and typically consist of one main room that serves as the living, dining, and sleeping area, along with a separate bathroom. There are also larger apartments with multiple bedrooms and separate living spaces.

The ownership and tenure of apartments can also vary. Some apartments are owned by individuals or families, while others are part of housing cooperatives or condominiums. In some cases, apartments are rented from a private landlord or are part of public housing.

Apartments can have various amenities and facilities. Some buildings have shared laundry rooms or parking spaces, while others may have their own private facilities. The cost of renting or owning an apartment can vary depending on factors such as location, size, and amenities.

Overall, apartments provide a convenient and flexible housing option for individuals and families. They offer the opportunity to live in urban areas close to amenities and services, and can be a more affordable alternative to owning a house.