Contemporary architecture is formally defined as the building style of the present day. Today's styles, however, are quite varied and have a number of different influences. Examples of contemporary architecture therefore do not necessarily have similar or easily recognizable features as in classical architecture. A precise definition of "contemporary" architecture, therefore, is not so simple to articulate.

It is generally recognized that contemporary architecture is an evolution of modern architecture. While these two terms are sometimes used synonymously, this usage is not correct. Modern architecture refers to the building style of the early to mid-20th century. It featured clean lines and an emphasis on function. Those elements that characterized modern architecture, however were also sometimes thought to be cold and impersonal. This belief lead to the creation of the contemporary style as is recognized today.

Like the modern style, contemporary architecture connects indoor and outdoor spaces, but it adds some personal touches and warmth throughout the living space. The use of natural light also plays a big part in defining this style. For this reason, large and expansive windows are a common and easily recognized feature of contemporary homes.

Green building is also becoming a strong component of the contemporary style. Architects today are placing more emphasis on energy efficiency; they also are using sustainable, natural, and recycled materials, thus creating eco-friendly houses. Contemporary homes are also often thoughtfully integrated into their natural surroundings. This practice is sometimes referred to as organic architecture.

This connection with nature extends from the outdoor landscape to the indoor environment. Outside, local plants may be used to decorate, or the house may be designed around a prominent natural feature. Living roofs, in which plants are used as roofing materials to increase energy efficiency, are also becoming popular. Inside, natural materials like bamboo flooring and granite countertops are common.

Features of a contemporary home thus may include, an irregular or unusually shaped frame, an open floor plan, oversized windows, the use of "green" components, a lack of ornamental details, or organic design.

Prominent contemporary architects include Frank Gehry, who designed the Guggenheim Museum in Bilbao; John Andrews, who designed the CN Tower in Montreal; and Jean Nouvel, who designed the Quai Branly Museum in Paris. Over time, contemporary architecture has developed several offshoots, each with its own characteristics, including postmodernism, neomodernism, and deconstructivism, among others. Postmodern and neomodern architecture returned to the use of ornaments on the facade of building. Deconstructivism developed from postmodernism and is characterized by ideas of fragmentation.