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The human made space in which people live, work and recreate on a day to day basis

The term built environment refers to human made conditions and is often used in architecture, landscape architecture, urban planning, public health, sociology, and anthropology, among others. These curated spaces provide the setting for human activity and were created to fulfill human desires and needs. The term can refer to a plethora of components including the traditionally associated buildings, cities, public infrastructure, transportation, open space, as well as more conceptual components like farmlands, dammed rivers, wildlife management, and even domesticated animals. and how society physically maneuvers and functions, as well as less tangible aspects of society such as socioeconomic inequity and health. Various aspects of the built environment contribute to scholarship on housing and segregation, physical activity, food access, climate change, and environmental racism.

There are multiple different components that make up the built environment. Below are some prominent examples of what makes up the urban fabric:

Buildings are used for a multitude of purposes: residential, commercial, community, institutional, and governmental. Building interiors are often designed to mediate external factors and provide space to conduct activities, whether that is to sleep, eat, work, etc. The structure of the building helps define the space around it, giving form to how individuals move through the space around the building.

Public infrastructure covers a variety of things like roads, highways, pedestrian circulation, public transportation, and parks. Roads and highways are an important feature of the built environment that enable vehicles to access a wide range of urban and non urban spaces. They are often compared to veins within a cardiovascular system in that they circulate people and materials throughout a city similar to how veins distribute energy and materials to the cells. Pedestrian circulation is vital for the walkability of a city and general access on a human scale. The quality of sidewalks and walkways have an impact on safety and accessibility for those using these spaces. Public transportation is essential in urban areas, particularly in cities and areas that have a diverse population and income range.

Agricultural production accounts for roughly 52% of U. S. land use. Not only does population growth cause an expansion of cities, it also necessitates more agriculture to accommodate the demand for food for an expanding population.

"Built environment" as a term was coined in the 1980s, becoming widespread in the 1990s The term describes a wide range of fields that form an interdisciplinary concept that has been accepted as an idea since classical antiquity and potentially before. Through the study of anthropology, the progression of the built environment into what it is today has been able to be examined. When people are able to travel outside of urban centers and areas where the built environment is already prominent, it pushes the boundaries of said built environment into new areas. While there are other factors that influence the built environment, like advancements in architecture or agriculture, transportation allowed for the spread and expansion of the built environment.

Agriculture, the cultivation of soil to grow crops and animals to provide food as well as products, was first developed about 12,000 years ago. This switch, also called the Neolithic Revolution, was the beginning of favoring permanent settlements and altering the land to grow crops and farm animals. This can be thought of as the start of the built environment, the first attempt to make permanent changes to the surrounding environment for human needs. The first appearance of cities was around 7500 BCE, dotted along where land was fertile and good for agricultural use. In these early communities, a priority was to ensure basic needs were being met. The built environment, while not as extensive as it is today, was beginning to be cultivated with the implementation of buildings, paths, farm land, domestication of animals and plants, etc. Over the next several thousand years, these smaller cities and villages grew into larger ones where trade, culture, education, and economics were driving factors. Cities rapidly grew from the 1880s to the early 1900s within the United States. This demand led individuals to move from farms to cities This rapid growth in population in cities led to issues of noise, sanitation, health problems, traffic jams, pollution, compact living quarters, etc. In response to these issues, mass transit, trolleys, cable cars, and subways, were built and prioritized in an effort to improve the quality of the built environment. An example of this during the industrial revolution was the City Beautiful movement. The City Beautiful movement emerged in the 1890s as a result of the disorder and unhealthy living conditions within industrial cities. The movement promoted improved circulation, civic centers, better sanitation, and public spaces. With these improvements, the goal was to improve the quality of life for those living in them, as well as make them more profitable. With this new burst of personal transportation, new infrastructure was built to accommodate. Freeways were first built in 1956 to attempt to eliminate unsafe roads, traffic jams, and insufficient routes. The creation of freeways and interstate transportation systems opened up the possibility and ease of transportation outside a person's city. This allowed ease of travel not previously found and changed the fabric of the built environment. New streets were being built within cities to accommodate cars as they became increasingly popular, railway lines were being built to connect areas not previously connected, for both public transportation as well as goods transportation. With these changes, the scope of a city began to expand outside its borders. The widespread use of cars and public transportation allowed for the implementation of suburbs; the working individual was able to commute long distances to work everyday. Suburbs blurred the line of city "borders", the day to day life that may have originally been relegated to a pedestrian radius now encompassed a wide range of distances due to the use of cars and public transportation. This increased accessibility allowed for the continued expansion of the built environment. Currently, the built environment is typically used to describe the interdisciplinary field that encompasses the design, construction, management, and use of human made physical influence as an interrelated whole. The concept also includes the relationship of these elements of the built environment with human activities over time—rather than a particular element in isolation or at a single moment in time, these aspects act together via the multiplier effect. The field today draws upon areas such as economics, law, public policy, sociology, anthropology, public health, management, geography, design, engineering, technology, and environmental sustainability to create a large umbrella that is the built environment. This commodity allows humans to enjoy the view and experience of nature without it inconveniencing their day to day life. Dating back to Georges Eugene Haussmann's comprehensive plans for urban Paris in the 1850s, concern for lack of air flow and sanitary living conditions has inspired many strong city planning efforts. During the 19th century in particular, the connection between the built environment and public health became more apparent as life expectancy decreased and diseases, as well as epidemics, increased. physical health, walkability, and cycling mobility. Designing areas of cities with good public health is linked to creating opportunities for physical activity, community involvement, and equal opportunity within the built environment. Urban forms that encourage physical activity and provide adequate public resources for involvement and upward mobility are proven to have far healthier populations than those that discourage such uses of the built environment.

Features in the built environment present physical barriers which constitute the boundaries between neighborhoods. Roads and railways, for instance, play a large role in how people can feasibly navigate their environment. This can result in the isolation of certain communities from various resources and from each other. Even less physically imposing features, such as architectural design, can distinguish the boundaries between communities and decrease movement across neighborhood lines. The segregation of communities is significant because the qualities of any given space directly impact the wellbeing of the people who live and work there. The effects of spatial segregation initiatives in the built environment, such as redlining in the 1930s and 1940s, are long lasting. The inability to feasibly move from forcibly economically depressed areas into more prosperous ones creates fiscal disadvantages that are passed down generationally. With proper public education access tied to the economic prosperity of a neighborhood, many formerly redlined areas continue to lack educational opportunities for residents and, thus, job and higher income opportunities are limited.

The built environment has a multitude of impacts on the planet, some of the most prominent effects are greenhouse gas emissions and Urban Heat Island Effect. The built environment expands along with factors like population and consumption which directly impact the output of greenhouse gases. As cities and urban areas grow, the need for transportation and structures grows as well. In 2006, transportation accounted for 28% of total greenhouse gas emissions in the U. S. Building's design, location, orientation, and construction process heavily influence greenhouse gas emissions. Urban Heat Islands are caused by reduction of natural landscape in favor of urban materials like asphalt, concrete, brick, etc. This change from natural landscape to urban materials is the epitome of the built environment and its expansion.