Architectural theory
Encyclopedia
Architectural theory is the act of thinking, discussing, or most importantly writing about architecture
Architecture
Architecture is both the process and product of planning, designing and construction. Architectural works, in the material form of buildings, are often perceived as cultural and political symbols and as works of art...

. Architectural theory is taught in most architecture schools and is practiced by the world's leading architect
Architect
An architect is a person trained in the planning, design and oversight of the construction of buildings. To practice architecture means to offer or render services in connection with the design and construction of a building, or group of buildings and the space within the site surrounding the...

s. Some forms that architecture theory takes are the lecture
Lecture
thumb|A lecture on [[linear algebra]] at the [[Helsinki University of Technology]]A lecture is an oral presentation intended to present information or teach people about a particular subject, for example by a university or college teacher. Lectures are used to convey critical information, history,...

 or dialogue, the treatise or book, and the paper project or competition entry
Architectural design competition
An architectural design competition is a special type of competition in which an organization or government body that plans to build a new building asks for architects to submit a proposed design for a building. The winning design is usually chosen by an independent panel of design professionals...

. Architectural theory is often didactic, and theorists tend to stay close to or work from within schools. It has existed in some form since antiquity
Ancient history
Ancient history is the study of the written past from the beginning of recorded human history to the Early Middle Ages. The span of recorded history is roughly 5,000 years, with Cuneiform script, the oldest discovered form of coherent writing, from the protoliterate period around the 30th century BC...

, and as publishing became more common, architectural theory gained an increased richness. Books, magazines, and journals published an unprecedented amount of works by architects and critics in the 20th century. As a result, styles and movements formed and dissolved much more quickly than the relatively enduring modes in earlier history. It is to be expected that the use of the internet will further the discourse on architecture in the 21st century.

Antiquity

There is little information or evidence about major architectural theory in antiquity, until the 1st century BCE, with the work of Vitruvius
Vitruvius
Marcus Vitruvius Pollio was a Roman writer, architect and engineer, active in the 1st century BC. He is best known as the author of the multi-volume work De Architectura ....

. This does not mean, however, that such works did not exist. Many works never survived antiquity, and the burning of the Alexandria Library shows us a very good example of this.

Vitruvius was a Roman writer
Writer
A writer is a person who produces literature, such as novels, short stories, plays, screenplays, poetry, or other literary art. Skilled writers are able to use language to portray ideas and images....

, architect
Architect
An architect is a person trained in the planning, design and oversight of the construction of buildings. To practice architecture means to offer or render services in connection with the design and construction of a building, or group of buildings and the space within the site surrounding the...

, and engineer
Engineer
An engineer is a professional practitioner of engineering, concerned with applying scientific knowledge, mathematics and ingenuity to develop solutions for technical problems. Engineers design materials, structures, machines and systems while considering the limitations imposed by practicality,...

 active in the 1st century BCE. He was the most prominent architectural theorist in the Roman Empire known today, having written De architectura
De architectura
' is a treatise on architecture written by the Roman architect Vitruvius and dedicated to his patron, the emperor Caesar Augustus, as a guide for building projects...

, (known today as The Ten Books of Architecture), a treatise written of Latin
Latin
Latin is an Italic language originally spoken in Latium and Ancient Rome. It, along with most European languages, is a descendant of the ancient Proto-Indo-European language. Although it is considered a dead language, a number of scholars and members of the Christian clergy speak it fluently, and...

 and Greek
Ancient Greek
Ancient Greek is the stage of the Greek language in the periods spanning the times c. 9th–6th centuries BC, , c. 5th–4th centuries BC , and the c. 3rd century BC – 6th century AD of ancient Greece and the ancient world; being predated in the 2nd millennium BC by Mycenaean Greek...

 on architecture, dedicated to the emperor Augustus. It is the only surviving major book on architecture from classical antiquity. Probably written between 27 and 23 BCE, it is the only contemporary source on classical architecture to have survived. Divided into ten sections or "books", it covers almost every aspect of Roman architecture, from town planning, materials, decorations, temples, water supplies, etc. The famous orders of architecture that we can see in every classical architecture are rigorously defined in the books. It also gathers three fundamental laws that Architecture
Architecture
Architecture is both the process and product of planning, designing and construction. Architectural works, in the material form of buildings, are often perceived as cultural and political symbols and as works of art...

 must obey, in order to be so considered: firmitas, utilitas, venustas: firmness, commodity (in the sense of functionality), and delight. The rediscovery of Vitruvius' work had a profound influence on architects of the Renaissance, prompting the rise of the Renaissance
Renaissance
The Renaissance was a cultural movement that spanned roughly the 14th to the 17th century, beginning in Italy in the Late Middle Ages and later spreading to the rest of Europe. The term is also used more loosely to refer to the historical era, but since the changes of the Renaissance were not...

 style. Renaissance architects, such as Niccoli, Brunelleschi and Leon Battista Alberti, found in "De Architectura" their rationale for raising their branch of knowledge to a scientific discipline.

Middle Ages

Throughout the Middle Ages, architectural knowledge was passed by transcription, word of mouth and technically in master builders' lodges. Due to the laborious nature of transcription, few examples of architectural theory were penned in this time period. Most works that from this period were theological, and were transcriptions of the bible, so the architectural theories were the notes on structures included therein. The Abbot Suger
Abbot Suger
Suger was one of the last Frankish abbot-statesmen, an historian, and the influential first patron of Gothic architecture....

's Liber de rebus in administratione sua gestis, was an architectural document that emerged with gothic architecture
Gothic architecture
Gothic architecture is a style of architecture that flourished during the high and late medieval period. It evolved from Romanesque architecture and was succeeded by Renaissance architecture....

. Another was Villard de Honnecourt
Villard de Honnecourt
Villard de Honnecourt was a 13th-century artist from Picardy in northern France. He is known to history only through a surviving portfolio of 33 sheets of parchment containing about 250 drawings dating from the 1220s/1240s, now in the Bibliothèque Nationale, Paris...

's portfolio of drawings from about the 1230s.

In Song Dynasty
Song Dynasty
The Song Dynasty was a ruling dynasty in China between 960 and 1279; it succeeded the Five Dynasties and Ten Kingdoms Period, and was followed by the Yuan Dynasty. It was the first government in world history to issue banknotes or paper money, and the first Chinese government to establish a...

 China, Li Jie published the Yingzao Fashi
Yingzao Fashi
The Yingzao Fashi is a technical treatise on architecture and craftsmanship written by the Chinese author Li Jie , the Directorate of Buildings and Construction during the mid Song Dynasty of China. A promising architect, he revised many older treatises on architecture from 1097 to 1100...

in 1103, which was an architectural treatise that codified elements of Chinese architecture
Chinese architecture
Chinese architecture refers to a style of architecture that has taken shape in East Asia over many centuries. The structural principles of Chinese architecture have remained largely unchanged, the main changes being only the decorative details...

.

Renaissance

The first great work of architectural theory of this period belongs to Leon Battista Alberti, De Re Aedificatoria
De Re Aedificatoria
De re aedificatoria is a classic architectural treatise written by Leon Battista Alberti between 1443 and 1452. Although largely dependent on Vitruvius' De architectura, it was the first theoretical book on the subject written in the Italian Renaissance and in 1485 became the first printed book on...

, which placed Vitruvius at the core of the most profound theoretical tradition of the modern ages. From Alberti, good architecture is validated through the Vitruvian triad, which defines its purpose. This triplet conserved all its validity until the 19th century.

Enlightenment

The Age of the Enlightenment witnessed considerable development in architectural theory on the European continent. New archeological discoveries (such as those of Pompeii and Herculaneum) drove new interest in Classical art and architecture. Thus the term Neoclassicism (exemplified by the writings of Prussian art critic Johann Joachim Winkelmann) arose to designate 18th-century architecture which looked to these new Classical precedents for inspiration in building design.

Major architectural theorists of the Enlightenment include Julien-David Leroy, Abbé Marc-Antoine Laugier, Giovanni Battista Piranesi,
Robert Adam, James Stuart, and Nicholas Revett.

Georg Friedrich Hegel also had a significant impact on architectural theory.

Nineteenth century

A vibrant strain of Neoclassicism
Neoclassicism
Neoclassicism is the name given to Western movements in the decorative and visual arts, literature, theatre, music, and architecture that draw inspiration from the "classical" art and culture of Ancient Greece or Ancient Rome...

, inherited from Marc-Antoine Laugier
Marc-Antoine Laugier
The abbé Marc-Antoine Laugier was a Jesuit priest and architectural theorist. Laugier is best known for his Essay on Architecture published in 1753. In 1755 he published the second edition with a famous, often reproduced illustration of a primitive hut...

's seminal Essai, provided the foundation for two generations of international activity around the core themes of classicism, primitivism
Primitivism
Primitivism is a Western art movement that borrows visual forms from non-Western or prehistoric peoples, such as Paul Gauguin's inclusion of Tahitian motifs in paintings and ceramics...

 and a "return to Nature."

Reaction against the dominance of neo-classical architecture came to the fore in the 1820s with Augustus Pugin
Augustus Pugin
Augustus Welby Northmore Pugin was an English architect, designer, and theorist of design, now best remembered for his work in the Gothic Revival style, particularly churches and the Palace of Westminster. Pugin was the father of E. W...

 providing a moral and theoretical basis for Gothic Revival architecture
Gothic Revival architecture
The Gothic Revival is an architectural movement that began in the 1740s in England...

, and in the 1840s John Ruskin
John Ruskin
John Ruskin was the leading English art critic of the Victorian era, also an art patron, draughtsman, watercolourist, a prominent social thinker and philanthropist. He wrote on subjects ranging from geology to architecture, myth to ornithology, literature to education, and botany to political...

 developed this ethos.

The American sculptor Horatio Greenough
Horatio Greenough
Horatio Greenough was an American sculptor best known for his United States government commissions The Rescue and George Washington .-Biography:...

 published the essay American Architecture in August 1843 in which he rejected the imitation of old styles of buildings and outlined the functional relationship between architecture and decoration. These theories anticipated the development of Functionalism
Functionalism (architecture)
Functionalism, in architecture, is the principle that architects should design a building based on the purpose of that building. This statement is less self-evident than it first appears, and is a matter of confusion and controversy within the profession, particularly in regard to modern...

 in modern architecture
Modern architecture
Modern architecture is generally characterized by simplification of form and creation of ornament from the structure and theme of the building. It is a term applied to an overarching movement, with its exact definition and scope varying widely...

.

Towards the end of the century, there occurred a blossoming of theoretical activity. In England, Ruskin's ideals underpinned the emergence of the Arts and Crafts movement
Arts and Crafts movement
Arts and Crafts was an international design philosophy that originated in England and flourished between 1860 and 1910 , continuing its influence until the 1930s...

 exemplified by the writings of William Morris
William Morris
William Morris 24 March 18343 October 1896 was an English textile designer, artist, writer, and socialist associated with the Pre-Raphaelite Brotherhood and the English Arts and Crafts Movement...

. This in turn formed the basis for Art Nouveau
Art Nouveau
Art Nouveau is an international philosophy and style of art, architecture and applied art—especially the decorative arts—that were most popular during 1890–1910. The name "Art Nouveau" is French for "new art"...

 in the UK, exemplified by the work of Charles Rennie Mackintosh
Charles Rennie Mackintosh
Charles Rennie Mackintosh was a Scottish architect, designer, watercolourist and artist. He was a designer in the Arts and Crafts movement and also the main representative of Art Nouveau in the United Kingdom. He had a considerable influence on European design...

, and influenced the Vienna Secession
Vienna Secession
The Vienna Secession was formed in 1897 by a group of Austrian artists who had resigned from the Association of Austrian Artists, housed in the Vienna Künstlerhaus. This movement included painters, sculptors, and architects...

. On the Continent, the theories of Viollet-le-Duc and Gottfried Semper
Gottfried Semper
Gottfried Semper was a German architect, art critic, and professor of architecture, who designed and built the Semper Opera House in Dresden between 1838 and 1841. In 1849 he took part in the May Uprising in Dresden and was put on the government's wanted list. Semper fled first to Zürich and later...

 provided the springboard for enormous vitality of thought dedicated to architectural innovation and the renovation of the notion of style. Semper in particular developed an international following, in Germany
Germany
Germany , officially the Federal Republic of Germany , is a federal parliamentary republic in Europe. The country consists of 16 states while the capital and largest city is Berlin. Germany covers an area of 357,021 km2 and has a largely temperate seasonal climate...

, England
England
England is a country that is part of the United Kingdom. It shares land borders with Scotland to the north and Wales to the west; the Irish Sea is to the north west, the Celtic Sea to the south west, with the North Sea to the east and the English Channel to the south separating it from continental...

, Switzerland
Switzerland
Switzerland name of one of the Swiss cantons. ; ; ; or ), in its full name the Swiss Confederation , is a federal republic consisting of 26 cantons, with Bern as the seat of the federal authorities. The country is situated in Western Europe,Or Central Europe depending on the definition....

, Austria
Austria
Austria , officially the Republic of Austria , is a landlocked country of roughly 8.4 million people in Central Europe. It is bordered by the Czech Republic and Germany to the north, Slovakia and Hungary to the east, Slovenia and Italy to the south, and Switzerland and Liechtenstein to the...

, Bohemia
Bohemia
Bohemia is a historical region in central Europe, occupying the western two-thirds of the traditional Czech Lands. It is located in the contemporary Czech Republic with its capital in Prague...

, France
France
The French Republic , The French Republic , The French Republic , (commonly known as France , is a unitary semi-presidential republic in Western Europe with several overseas territories and islands located on other continents and in the Indian, Pacific, and Atlantic oceans. Metropolitan France...

, Italy
Italy
Italy , officially the Italian Republic languages]] under the European Charter for Regional or Minority Languages. In each of these, Italy's official name is as follows:;;;;;;;;), is a unitary parliamentary republic in South-Central Europe. To the north it borders France, Switzerland, Austria and...

 and the United States
United States
The United States of America is a federal constitutional republic comprising fifty states and a federal district...

. The generation born during the middle-third of the 19th century was largely enthralled with the opportunities presented by Semper's combination of a breathtaking historical scope and a methodological granularity. In contrast to more recent, and thus "modern", thematically self-organized theoretical activities, this generation did not coalesce into a "movement." They did, however, seem to converge on Semper's use of the concept of Realismus, and they are thus labelled proponents of architectural realism. Among the most active Architectural Realists were: Georg Heuser, Rudolf Redtenbacher, Constantin Lipsius
Constantin Lipsius
Johannes Wilhelm Constantin Lipsius was a German architect and architectural theorist, best known for his controversial design of the Royal Academy of Fine Arts and Exhibition Building on the Brühl Terrace in Dresden, today known as the Lipsius-Bau.After attending Gymnasium, Lipsius initially...

, Hans Auer
Hans Auer
Hans Wilhelm Auer was a Swiss-Austrian architect best known for his design of the Swiss Bundeshaus in Bern.Auer was born in Wädenswil...

, Paul Sédille
Paul Sédille
Paul Sédille was a French architect and theorist; and designed the 1880 reconstruction of the iconic Magasins du Printemps department store in Paris.- Life :...

, Lawrence Harvey, Otto Wagner
Otto Wagner
Otto Koloman Wagner was an Austrian architect and urban planner, known for his lasting impact on the appearance of his home town Vienna, to which he contributed many landmarks.-Life:...

 and Richard Streiter.

Twentieth century

Around the turn of the 20th century Camillo Sitte
Camillo Sitte
Camillo Sitte was a noted Austrian architect, painter and city planning theoretician with great influence and authority of the development of urban construction planning and regulation in Europe.- Life :...

 published the City Planning According to Artistic Principles which was not exactly a criticism of architectural form, but more precisely an aesthetic criticism of the 19th century's urbanism. Mainly an urban planning
Urban planning
Urban planning incorporates areas such as economics, design, ecology, sociology, geography, law, political science, and statistics to guide and ensure the orderly development of settlements and communities....

 theory book, it has a deep influence in architecture, as the two disciplines are deeply intertwined. It was also highly successful in its time. Between 1889 and 1922 it is edited five times, French translation came in 1902 and the English translation in 1945, in New York. For Sitte, the most important is not the architectural shape or form of each building, but the inherent creative quality of urban space, the whole as much more than the sum of its parts. Modernist movements rejected these thoughts and Le Corbusier
Le Corbusier
Charles-Édouard Jeanneret, better known as Le Corbusier , was a Swiss-born French architect, designer, urbanist, writer and painter, famous for being one of the pioneers of what now is called modern architecture. He was born in Switzerland and became a French citizen in 1930...

 energetically dismissed the work. Nevertheless, his work is often used and cited as a criticism to the Modernist movement, and reemerged its importance in the post-modernist movement, late in the sixties. Also on the topic of artistic notions with regard to urbanism was Louis Sullivan
Louis Sullivan
Louis Henri Sullivan was an American architect, and has been called the "father of skyscrapers" and "father of modernism" He is considered by many as the creator of the modern skyscraper, was an influential architect and critic of the Chicago School, was a mentor to Frank Lloyd Wright, and an...

's The Tall Office Building Artistically Considered of 1896. In this essay, Sullivan penned his famous adage "form forever follows function"; a phrase that was to be later adopted as a central tenet of Modernist architectural theory. While later architects adopted the abbreviated phrase "form follows function" as a polemic in service of functionalist doctrine, Sullivan wrote of function with regard to biological functions of the natural order. Another influential planning theorist of this time was Ebenezer Howard
Ebenezer Howard
Sir Ebenezer Howard is known for his publication Garden Cities of To-morrow , the description of a utopian city in which people live harmoniously together with nature. The publication resulted in the founding of the garden city movement, that realized several Garden Cities in Great Britain at the...

, who founded the garden city movement
Garden city movement
The garden city movement is a method of urban planning that was initiated in 1898 by Sir Ebenezer Howard in the United Kingdom. Garden cities were intended to be planned, self-contained communities surrounded by "greenbelts" , containing proportionate areas of residences, industry and...

. This movement formed communities with architecture in the Arts and Crafts style
Arts and Crafts movement
Arts and Crafts was an international design philosophy that originated in England and flourished between 1860 and 1910 , continuing its influence until the 1930s...

 at Letchworth
Letchworth
Letchworth Garden City, commonly known as Letchworth, is a town and civil parish in Hertfordshire, England. The town's name is taken from one of the three villages it surrounded - all of which featured in the Domesday Book. The land used was first purchased by Quakers who had intended to farm the...

 and Welwyn Garden City
Welwyn Garden City
-Economy:Ever since its inception as garden city, Welwyn Garden City has attracted a strong commercial base with several designated employment areas. Among the companies trading in the town are:*Air Link Systems*Baxter*British Lead Mills*Carl Zeiss...

 and popularised the style as domestic architecture.

In Vienna
Vienna
Vienna is the capital and largest city of the Republic of Austria and one of the nine states of Austria. Vienna is Austria's primary city, with a population of about 1.723 million , and is by far the largest city in Austria, as well as its cultural, economic, and political centre...

, modernism
Modern architecture
Modern architecture is generally characterized by simplification of form and creation of ornament from the structure and theme of the building. It is a term applied to an overarching movement, with its exact definition and scope varying widely...

 had many theorists and proponents. An early use of the term "modern architecture" in print, was in the title of a book by Otto Wagner
Otto Wagner
Otto Koloman Wagner was an Austrian architect and urban planner, known for his lasting impact on the appearance of his home town Vienna, to which he contributed many landmarks.-Life:...

, who gave examples of his own work representative of the Vienna Secession
Vienna Secession
The Vienna Secession was formed in 1897 by a group of Austrian artists who had resigned from the Association of Austrian Artists, housed in the Vienna Künstlerhaus. This movement included painters, sculptors, and architects...

 with art nouveau
Art Nouveau
Art Nouveau is an international philosophy and style of art, architecture and applied art—especially the decorative arts—that were most popular during 1890–1910. The name "Art Nouveau" is French for "new art"...

 illustrations, and didactic teachings to his students. Soon thereafter, Adolf Loos
Adolf Loos
Adolf Franz Karl Viktor Maria Loos was a Moravian-born Austro-Hungarian architect. He was influential in European Modern architecture, and in his essay Ornament and Crime he repudiated the florid style of the Vienna Secession, the Austrian version of Art Nouveau...

 wrote Ornament and Crime
Ornament and Crime
Ornament and Crime is an essay written in 1908 by the influential and self-consciously "modern" Austrian architect Adolf Loos under the German title Ornament und Verbrechen...

, and while his own style can be seen as part of the transition to Art Deco
Art Deco
Art deco , or deco, is an eclectic artistic and design style that began in Paris in the 1920s and flourished internationally throughout the 1930s, into the World War II era. The style influenced all areas of design, including architecture and interior design, industrial design, fashion and...

, his demand for "the elimination of ornament" joined the slogan "form follows function
Form follows function
Form follows function is a principle associated with modern architecture and industrial design in the 20th century. The principle is that the shape of a building or object should be primarily based upon its intended function or purpose....

" as a principle of the modern architecture
Modern architecture
Modern architecture is generally characterized by simplification of form and creation of ornament from the structure and theme of the building. It is a term applied to an overarching movement, with its exact definition and scope varying widely...

 movement which came to dominate the 20th Century. Walter Gropius
Walter Gropius
Walter Adolph Georg Gropius was a German architect and founder of the Bauhaus School who, along with Ludwig Mies van der Rohe and Le Corbusier, is widely regarded as one of the pioneering masters of modern architecture....

, Ludwig Mies van der Rohe
Ludwig Mies van der Rohe
Ludwig Mies van der Rohe was a German architect. He is commonly referred to and addressed as Mies, his surname....

 and Le Corbusier
Le Corbusier
Charles-Édouard Jeanneret, better known as Le Corbusier , was a Swiss-born French architect, designer, urbanist, writer and painter, famous for being one of the pioneers of what now is called modern architecture. He was born in Switzerland and became a French citizen in 1930...

 provided the theoretical basis for the international style
International style (architecture)
The International style is a major architectural style that emerged in the 1920s and 1930s, the formative decades of Modern architecture. The term originated from the name of a book by Henry-Russell Hitchcock and Philip Johnson, The International Style...

 with aims of using industrialised architecture to reshape society. Frank Lloyd Wright
Frank Lloyd Wright
Frank Lloyd Wright was an American architect, interior designer, writer and educator, who designed more than 1,000 structures and completed 500 works. Wright believed in designing structures which were in harmony with humanity and its environment, a philosophy he called organic architecture...

, while modernist in rejecting historic revivalism, was idiosyncratic in his theory, which he conveyed in copious writing. Wright did not subscribe to the tenets of the International Style, but evolved what he hoped would be an American, in contrast to a European, progressive course. Wright's style, however, was highly personal, involving his private views of man and nature. He created no major "school" or theoretical movement. Wright was more poetic and firmly maintained the 19th century view of the creative artist as unique genius. This limited the relevance of his theoretical propositions. Towards the end of the century postmodern architecture
Postmodern architecture
Postmodern architecture began as an international style the first examples of which are generally cited as being from the 1950s, but did not become a movement until the late 1970s and continues to influence present-day architecture...

 reacted against the austerity of High Modern (International Style) principles, viewed as narrowly normative and doctrinaire.

Contemporary

In contemporary architectural discourse theory has become more concerned with its position within culture generally, which is why university courses on architecture theory may often spend just as much time discussing philosophy and cultural studies as buildings. The notion that theory also entailed critique stemmed from post-structural literary studies. This, however, pushed architecture towards the notion of avant-gardism for its own sake - in many ways repeating the 19th century 'art for art's sake' outlook. Since 2000 this has materialised in architecture through concerns with the rapid rise of urbanism and globalization
Globalization
Globalization refers to the increasingly global relationships of culture, people and economic activity. Most often, it refers to economics: the global distribution of the production of goods and services, through reduction of barriers to international trade such as tariffs, export fees, and import...

, but also a pragmatic understanding that the city can no longer be a homogenous totality. Interests in fragmentation and architecture as transient objects further such thinking (e.g. the concern for employing high technology). And yet this can also be tied into general concerns such as ecology
Ecology
Ecology is the scientific study of the relations that living organisms have with respect to each other and their natural environment. Variables of interest to ecologists include the composition, distribution, amount , number, and changing states of organisms within and among ecosystems...

, mass media
Mass media
Mass media refers collectively to all media technologies which are intended to reach a large audience via mass communication. Broadcast media transmit their information electronically and comprise of television, film and radio, movies, CDs, DVDs and some other gadgets like cameras or video consoles...

, and economism.

In the past decade, there has been a resurgence of the old "organic design" theories, but in a much more scientific setting. Several currents and design methodologies are being developed simultaneously, and some of these reinforce whereas others contrast with each other. One of these trends is Biomimicry
Biomimicry
Biomimicry or biomimetics is the examination of nature, its models, systems, processes, and elements to emulate or take inspiration from in order to solve human problems. The term biomimicry and biomimetics come from the Greek words bios, meaning life, and mimesis, meaning to imitate...

, which is the explicit copying of forms and structures found in biological organisms for buildings. Architects design organic-looking buildings in the belief that by copying nature, Organic architecture
Organic architecture
Organic architecture is a philosophy of architecture which promotes harmony between human habitation and the natural world through design approaches so sympathetic and well integrated with its site that buildings, furnishings, and surroundings become part of a unified, interrelated...

 reaches a more attractive form. Another trend is the exploration of computational techniques, which are strongly influenced by algorithms relevant to biological processes and sometimes referred to as Digital morphogenesis
Digital morphogenesis
Digital morphogenesis is a process of shape development enabled by computation. While this concept is applicable in many areas, the term "digital morphogenesis" is used primarily in architecture....

. Trying to utilize Computational creativity
Computational creativity
Computational creativity is a multidisciplinary endeavour that is located at the intersection of the fields of artificial intelligence, cognitive psychology, philosophy, and the arts.The goal of computational creativity is to model, simulate or replicate creativity using a computer, to...

 in architecture, Genetic algorithms developed in computer science are applied to evolve designs on a computer, and some of these are proposed and built as actual structures. There exists, however, a controversy as to whether all such evolved designs through Design computing
Design computing
Design Computing refers to an area of Design Studies that deals with furthering the understanding and the practice of design activities through the application and development of novel concepts and techniques in computing....

 are truly appropriate for buildings, or are merely attractive forms that may be too complex for habitation. The new discipline of biophilia
Biophilia Hypothesis
The biophilia hypothesis suggests that there is an instinctive bond between human beings and other living systems. Edward O. Wilson introduced and popularized the hypothesis in his book entitled Biophilia.- Love of living systems :...

 developed by E. O. Wilson
E. O. Wilson
Edward Osborne Wilson is an American biologist, researcher , theorist , naturalist and author. His biological specialty is myrmecology, the study of ants....

 suggests the advantages of forms inspired by biological structures, but in a more profound way than simple mimicry. Wilson's original idea is extended by Stephen R. Kellert in the Biophilia hypothesis
Biophilia Hypothesis
The biophilia hypothesis suggests that there is an instinctive bond between human beings and other living systems. Edward O. Wilson introduced and popularized the hypothesis in his book entitled Biophilia.- Love of living systems :...

, and applied to architectural design in the book "Biophilic Design". Mathematical features of biological forms such as fractals, Scale-invariance, very sophisticated notions of symmetry
Symmetry
Symmetry generally conveys two primary meanings. The first is an imprecise sense of harmonious or aesthetically pleasing proportionality and balance; such that it reflects beauty or perfection...

, Self-similarity
Self-similarity
In mathematics, a self-similar object is exactly or approximately similar to a part of itself . Many objects in the real world, such as coastlines, are statistically self-similar: parts of them show the same statistical properties at many scales...

, and complex Hierarchy
Hierarchy
A hierarchy is an arrangement of items in which the items are represented as being "above," "below," or "at the same level as" one another...

 are proposed as essential tools for designing architectural forms. Trying to understand the complex interaction between humans and their environment gained from Human-computer interaction, Mobile robotics, and Artificial intelligence
Artificial intelligence
Artificial intelligence is the intelligence of machines and the branch of computer science that aims to create it. AI textbooks define the field as "the study and design of intelligent agents" where an intelligent agent is a system that perceives its environment and takes actions that maximize its...

 leads to ideas in Intelligence-Based Design
Intelligence-Based Design
Intelligence-Based Design is the purposeful manipulation of the built-environment to effectively engage humans in an essential manner through complex organized information. Intelligence-Based Theory evidences the conterminous relationship between mind and matter, i.e. the direct neurological...

. We are witnessing a growth of new ideas that are generating an entirely new type of architectural theory. It bears little resemblance to the dominant school of architectural theory based on linguistic analysis, philosophy, post-structuralism, or cultural theory.

Some architectural theorists

Historical
  • Vitruvius
    Vitruvius
    Marcus Vitruvius Pollio was a Roman writer, architect and engineer, active in the 1st century BC. He is best known as the author of the multi-volume work De Architectura ....

  • Leon Battista Alberti
  • Andrea Palladio
    Andrea Palladio
    Andrea Palladio was an architect active in the Republic of Venice. Palladio, influenced by Roman and Greek architecture, primarily by Vitruvius, is widely considered the most influential individual in the history of Western architecture...

  • Sebastiano Serlio
    Sebastiano Serlio
    Sebastiano Serlio was an Italian Mannerist architect, who was part of the Italian team building the Palace of Fontainebleau...

  • John Ruskin
    John Ruskin
    John Ruskin was the leading English art critic of the Victorian era, also an art patron, draughtsman, watercolourist, a prominent social thinker and philanthropist. He wrote on subjects ranging from geology to architecture, myth to ornithology, literature to education, and botany to political...

  • Horatio Greenough
    Horatio Greenough
    Horatio Greenough was an American sculptor best known for his United States government commissions The Rescue and George Washington .-Biography:...

  • Eugène Viollet-le-Duc
    Eugène Viollet-le-Duc
    Eugène Emmanuel Viollet-le-Duc was a French architect and theorist, famous for his interpretive "restorations" of medieval buildings. Born in Paris, he was a major Gothic Revival architect.-Early years:...

  • Karl Friedrich Schinkel
    Karl Friedrich Schinkel
    Karl Friedrich Schinkel was a Prussian architect, city planner, and painter who also designed furniture and stage sets. Schinkel was one of the most prominent architects of Germany and designed both neoclassical and neogothic buildings.-Biography:Schinkel was born in Neuruppin, Margraviate of...

  • Gottfried Semper
    Gottfried Semper
    Gottfried Semper was a German architect, art critic, and professor of architecture, who designed and built the Semper Opera House in Dresden between 1838 and 1841. In 1849 he took part in the May Uprising in Dresden and was put on the government's wanted list. Semper fled first to Zürich and later...

  • Hans Auer
    Hans Auer
    Hans Wilhelm Auer was a Swiss-Austrian architect best known for his design of the Swiss Bundeshaus in Bern.Auer was born in Wädenswil...

  • Paul Sédille
    Paul Sédille
    Paul Sédille was a French architect and theorist; and designed the 1880 reconstruction of the iconic Magasins du Printemps department store in Paris.- Life :...

  • Constantin Lipsius
    Constantin Lipsius
    Johannes Wilhelm Constantin Lipsius was a German architect and architectural theorist, best known for his controversial design of the Royal Academy of Fine Arts and Exhibition Building on the Brühl Terrace in Dresden, today known as the Lipsius-Bau.After attending Gymnasium, Lipsius initially...

  • Richard Streiter
  • Hermann Muthesius
    Hermann Muthesius
    Adam Gottlieb Hermann Muthesius , known as Hermann Muthesius, was a German architect, author and diplomat, perhaps best known for promoting many of the ideas of the English Arts and Crafts movement within Germany and for his subsequent influence on early pioneers of German architectural modernism...



Modern
  • Bruno Zevi
    Bruno Zevi
    Bruno Zevi was an Italian architect, historian, professor, curator, author and editor. Zevi was a vocal critic of 'classicising' modern architecture and postmodernism.-University years:...

  • Leonardo Benevolo
    Leonardo Benevolo
    Leonardo Benevolo is an Italian architectural and urban historian. Benevolo studied architecture in Rome where he graduated in 1946. Later taught history of architecture in Rome, Florence, Venice and Palermo...

  • Steen Eiler Rasmussen
    Steen Eiler Rasmussen
    Steen Eiler Rasmussen was a Danish architect and urban planner who was a professor at the Royal Danish Academy of Fine Arts, and a prolific writer of books and poetry...

  • Otto Wagner
    Otto Wagner
    Otto Koloman Wagner was an Austrian architect and urban planner, known for his lasting impact on the appearance of his home town Vienna, to which he contributed many landmarks.-Life:...

  • Le Corbusier
    Le Corbusier
    Charles-Édouard Jeanneret, better known as Le Corbusier , was a Swiss-born French architect, designer, urbanist, writer and painter, famous for being one of the pioneers of what now is called modern architecture. He was born in Switzerland and became a French citizen in 1930...

  • Adolf Loos
    Adolf Loos
    Adolf Franz Karl Viktor Maria Loos was a Moravian-born Austro-Hungarian architect. He was influential in European Modern architecture, and in his essay Ornament and Crime he repudiated the florid style of the Vienna Secession, the Austrian version of Art Nouveau...

  • Raymond Unwin
    Raymond Unwin
    Sir Raymond Unwin was a prominent and influential English engineer, architect and town planner, with an emphasis on improvements in working class housing.-Early years:...

  • William Pereira
    William Pereira
    William Leonard Pereira was an American architect from Chicago, Illinois, of Portuguese ancestry who was noted for his futuristic designs of landmark buildings such as the Transamerica Pyramid in San Francisco...

  • Ebenezer Howard
    Ebenezer Howard
    Sir Ebenezer Howard is known for his publication Garden Cities of To-morrow , the description of a utopian city in which people live harmoniously together with nature. The publication resulted in the founding of the garden city movement, that realized several Garden Cities in Great Britain at the...

  • Christian Norberg-Schulz
    Christian Norberg-Schulz
    Christian Norberg-Schulz was a Norwegian architect, architectural historian and theorist.He was born in Oslo. He is the father of singer Elizabeth Norberg-Schulz....

  • Rudolf Arnheim
  • Lúcio Costa
    Lúcio Costa
    Lucio Costa was a Brazilian architect and urban planner.-Career:Costa was born in Toulon, France.Educated at the Royal Grammar School, Newcastle upon Tyne, England and in Montreux until 1916, he graduated as an architect in 1924 from the School of Fine Art in Rio de Janeiro...



Postmodern
  • Charles Jencks
    Charles Jencks
    Charles Alexander Jencks is an American architectural theorist, landscape architect and designer. His books on the history and criticism of Modernism and Postmodernism were widely read in architectural circles and beyond....

  • Aldo Rossi
    Aldo Rossi
    Aldo Rossi was an Italian architect and designer who accomplished the unusual feat of achieving international recognition in four distinct areas: theory, drawing, architecture and product design.-Early life:...

  • Demetri Porphyrios
    Demetri Porphyrios
    Demetri Porphyrios is a Greek architect and author who currently practises architecture in London as principal of the firm Porphyrios Associates. In addition to practice and writing, Porphyrios has held a number of teaching positions in the United States, the United Kingdom and Greece. He is...

  • Peter Eisenman
    Peter Eisenman
    Peter Eisenman is an American architect. Eisenman's professional work is often referred to as formalist, deconstructive, late avant-garde, late or high modernist, etc...

  • Robert Venturi
    Robert Venturi
    Robert Charles Venturi, Jr. is an American architect, founding principal of the firm Venturi, Scott Brown and Associates, and one of the major figures in the architecture of the twentieth century...



Contemporary
  • Kenneth Frampton
    Kenneth Frampton
    Kenneth Frampton , is a British architect, critic, historian and the Ware Professor of Architecture at the Graduate School of Architecture, Planning, and Preservation at Columbia University, New York....

  • Christopher Alexander
    Christopher Alexander
    Christopher Wolfgang Alexander is a registered architect noted for his theories about design, and for more than 200 building projects in California, Japan, Mexico and around the world...

  • Stan Allen
    Stan Allen
    Stan Allen is an American architect, theorist and dean of the at Princeton University. He received a B.A. from Brown University, a B.Arch. from the Cooper Union and an M.Arch. from Princeton University and has worked in the offices of Richard Meier and Rafael Moneo. He was formerly the director,...

  • Marco Frascari
    Marco Frascari
    Marco Frascari is an Italian architect and architectural theorist born under the shadow of the dome of Sant Andrea in Mantova, in 1945. He studied with Carlo Scarpa and Arrigo Rudi at IUAV and received his PhD in Architecture from the University of Pennsylvania...

  • K. Michael Hays
    K. Michael Hays
    K. Michael Hays is Eliot Noyes Professor of Architectural Theory at Harvard University, in Harvard's Graduate School of Design and Co-Director of Doctoral Programs .- Education :...

  • Jeff Kipnis
    Jeff Kipnis
    Jeffrey Kipnis is an architectural critic, theorist, designer, film-maker, curator, and educator. Not a registered architect, Kipnis first came to prominence through his association with avant-garde architect Peter Eisenman, and their joint collaboration with French philosopher Jacques Derrida...

  • Oswald Mathias Ungers
    Oswald Mathias Ungers
    Oswald Mathias Ungers was a German architect and architectural theorist, known for his rationalist designs and the use of cubic forms. Among his notable projects are museums in Frankfurt, Hamburg and Cologne....

  • Rem Koolhaas
    Rem Koolhaas
    Remment Lucas Koolhaas is a Dutch architect, architectural theorist, urbanist and "Professor in Practice of Architecture and Urban Design" at the Graduate School of Design at Harvard University, USA. Koolhaas studied at the Netherlands Film and Television Academy in Amsterdam, at the Architectural...

  • Leon Krier
    Léon Krier
    Léon Krier is an architect, architectural theorist and urban planner. From the late 1970s onwards Krier has been one of the most influential neo-traditional architects and planners...

  • Sanford Kwinter
    Sanford Kwinter
    Sanford Kwinter is a Canada-born, New York-based writer and world-renowned architectural theorist, and a co-founder of the influential publishers. Kwinter currently serves as Professor of Theory and Criticism at the Harvard University Graduate School of Design...

  • Daniel Libeskind
    Daniel Libeskind
    Daniel Libeskind, is an American architect, artist, and set designer of Polish-Jewish descent. Libeskind founded Studio Daniel Libeskind in 1989 with his wife, Nina, and is its principal design architect...

  • Juhani Pallasmaa
    Juhani Pallasmaa
    Juhani Uolevi Pallasmaa is a Finnish architect and former professor of architecture at the Helsinki University of Technology and a former Director of the Museum of Finnish Architecture . He runs his own architect's office – Arkkitehtitoimisto Juhani Pallasmaa KY – in Helsinki...

  • Mark Jarzombek
    Mark Jarzombek
    Mark Jarzombek is a US-born architectural historian, author and critic. Since 1995 he has served as Director of the History Theory Criticism Section of the Department of Architecture at MIT, Cambridge MA, United States....

  • Colin Rowe
    Colin Rowe
    Colin Rowe , was a British-born, American-naturalised architectural historian, critic, theoretician, and teacher; acknowledged as a major intellectual influence on world architecture and urbanism in the second half of the twentieth century and beyond, particularly in the fields of city planning,...

  • Nikos Salingaros
    Nikos Salingaros
    Nikos A. Salingaros is a mathematician and polymath known for his work on urban theory, architectural theory, complexity theory, and design philosophy. He has been a close collaborator of the architect and computer software pioneer Christopher Alexander, with whom Salingaros shares a harsh...

  • Robert Somol
    Robert Somol
    Robert E. Somol Jr. is an architectural theorist currently serving as the Director of the School of Architecture at the University of Illinois at Chicago.-Education:He holds an A.B. from Brown University , a J.D. from Harvard Law School, and a Ph.D...

  • Bernard Tschumi
    Bernard Tschumi
    Bernard Tschumi is an architect, writer, and educator, commonly associated with deconstructivism. Born of French and Swiss parentage, he works and lives in New York and Paris. He studied in Paris and at ETH in Zurich, where he received his degree in architecture in 1969...

  • Anthony Vidler
  • Mark Wigley
    Mark Wigley
    Mark Antony Wigley is a New Zealand-born architect, author, and Dean of Columbia University's Graduate School of Architecture, Planning and Preservation, New York, United States.-Life:...

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