Bay and Bow windows very often are used in the front part of the house. The most unique feature of the Bay windows is the illusion of a larger room. They are used to increase the flow of natural light into a building as well as provide an enhanced view of the outside that would be unavailable with an ordinary window. It is for these reasons that bay and bow windows have become an architectural staple in many urban communities. Appealing design made these type of windows a very popular choice.
Bow windows are composed of four or more equal size window units. Bay windows are generally composed of three windows (two side casements and a large fixed window).