Structure
The developed world in general features three basic house types:

Single-family homes - detached and often standing on their own parcel of land
Semi-detached houses - attached to one or more houses
Terraced house (UK) or row house (also known as a townhouse) (USA) - attached to other houses, possibly in a row (separated by a party wall)
In the United Kingdom, 27% of the population lived in terraced houses and 32% in semi-detached houses, as of 2002. In the United States in 2000, 61.4% of people lived in detached houses and 5.6% in semi-detached houses, 26% in row houses or apartments, and 7% in mobile homes.

People build "face houses" in one or more faces; though they occur most commonly as a fort or playhouse for a child, this design sometimes serves as a house for adults.


 Shape
Archaeologists have a particular interest in house shape: they see the transition over time from round huts to rectangular houses as a significant advance in optimizing the use of space, and associate it with the growth of the idea of a personal area (see personal space).


Function
Some houses transcend the basic functionality of providing "a roof over one's head" or of serving as a family "hearth and home". When a house becomes a display-case for wealth and/or fashion and/or conspicuous consumption, we may speak of a "great house". The residence of a feudal lord or of a ruler may require defensive structures and thus turn into a fort or a castle. The house of a monarch may come to house courtiers and officers as well as the royal family: this sort of house may become a palace. Moreover, in time the lord or monarch may wish to retreat to a more personal or simple space such as a villa, a hunting lodge or a dacha. Compare the popularity of the holiday house or cottage, also known as a crib.

In contrast to a relatively upper class or modern trend to multiple houses, much of human history shows the importance of multi-purpose houses. Thus the house long served as the traditional place of work (the original cottage industry site or "in-house" small-scale manufacturing workshop) or of commerce (featuring, for example, a ground floor "ship-front" shop or counter or office, with living space above). It took an Industrial Revolution to separate manufacturing and banking from the house; and to this day some shopkeepers continue (or have returned) to live "over the shop".


Inside the house



Floor plan of a typical "foursquare" house Many houses have several rooms with specialized functions. These may include a living/eating area, a sleeping area, and (if suitable facilities and services exist) washing and lavatory areas. In traditional agriculture-oriented societies, domestic animals such as chickens or larger livestock (like cattle) often share part of the house with human beings. Most conventional modern houses will at least contain a bedroom, bathroom, kitchen (or kitchen area), and a living room. A typical "foursquare house" (as pictured) occurred commonly in the early history of the United States of America, with a staircase in the centre of the house, surrounded by four rooms, and connected to other sections of the house (including in more recent eras a garage).


 

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