An apartment complex is a group of residential buildings that contain multiple individual units, typically designed for rental purposes. These complexes can vary in size, from a few units to several hundred, and often include shared amenities such as swimming pools, fitness centers, and laundry facilities. Residents of an apartment complex usually have access to common areas and may benefit from on-site management and maintenance services. The layout and design of these complexes can differ significantly, catering to various lifestyles and budgets, making them a popular housing option in urban and suburban areas.