Buildings have been built in one place and reassembled in another throughout history. This was especially true for mobile activities, or for new settlements. Elminan linna, the first orjalinnake in Länsi-Afrikka, was also the first European prefabricated building in Saharan eteläpuolinen -Afrikka.1: 93 In Pohjois-Amerikka, in 1624 yksi ensimmäisistä rakennuksista at Kap Ann was probably partially prefabricated, and was rapidly disassembled and moved at least once. John Rollo described in 1801 earlier use of portable hospital buildings in the Länsi-Intia.2 Possibly the first advertised prefab house was the "Manning cottage". A London carpenter, Henry Manning, constructed a house that was built in components, then shipped and assembled by British emigrants. This was published at the time (advertisement, South Australian Record, 1837) and a few still stand in Australia.3 One such is the Friends Meeting House, Adelaide.45 The peak year for the importation of portable buildings to Australia was 1853, when several hundred arrived. These have been identified as coming from Liverpool, Boston and Singapore (with Chinese instructions for re-assembly).6 In Barbados the Asukastalo was a form of prefabricated building which was developed by emancipated slaves who had limited rights to build upon land they did not own. As the buildings were moveable they were legally regarded as irtaimia.7
In 1855 during the Krimin sota, after Florence Nightingale wrote a letter to Ajat, Isambard Kingdom Brunel was commissioned to design a prefabricated modular hospital. In five months he designed the Renkioin sairaala: 1,000 potilaan sairaala, jossa on innovaatioita sanitaatiossa, ilmanvaihdossa ja huuhtelukäymälässä.8 Fabricator William Easy constructed the required 16 units in Gloucesterin telakat, shipped directly to the Dardanellit. Vain maaliskuusta 1856 syyskuuhun 1857 käytettynä se vähensi kuolleisuuden 42 prosentista 3,5 prosenttiin.
The world's first prefabricated, pre-cast panelled apartment blocks were pioneered in Liverpool. A process was invented by city engineer John Alexander Brodie, whose inventive genius also had him inventing the football goal net. The tram stables at Walton in Liverpool followed in 1906. The idea was not extensively adopted in Britain, however was widely adopted elsewhere, particularly in Eastern Europe.
Prefabricated homes were produced during the Kultakuume in the United States, when kits were produced to enable Californian prospectors to quickly construct accommodation. Homes were available in kit form by mail order in the United States in 1908.9
Prefabricated housing was popular during the Toinen maailmansota due to the need for mass accommodation for military personnel. The United States used Quonsetin mökit as military buildings, and in the United Kingdom prefabricated buildings used included Nissenin mökit and Bellmanin angaarit. 'Prefabs' were built after the war as a means of quickly and cheaply providing quality housing as a replacement for the housing destroyed during Blitz. The proliferation of prefabricated housing across the country was a result of the Burtin komitea and the Housing (Temporary Accommodation) Act 1944. Under the Työministeriö Tehdasvalmisteinen hätätilanteessa housing programme, a specification was drawn up and bid on by various private construction and manufacturing companies. After approval by the MoW, companies could bid on Council led development schemes, resulting in whole estates of prefabs constructed to provide accommodation for those made homeless by the War and ongoing slummien raivaus.10 Almost 160,000 had been built in the UK by 1948 at a cost of close to £216 million. The largest single prefab estate in Britain11 was at Belle Vale (South Liverpool), where more than 1,100 were built after World War 2. The estate was demolished in the 1960s amid much controversy as the prefabs were very popular with residents at the time.
Prefabs were aimed at families, and typically had an entrance hall, two bedrooms (parents and children), a bathroom (a room with a bath) — which was a novel innovation for many Britons at that time, a separate toilet, a living room and an equipped (not asennettu in the modern sense) kitchen. Construction materials included steel, aluminium, timber or asbesti, depending on the type of dwelling. The aluminium Tyyppi B2 prefab was produced as four pre-assembled sections which could be transported by lorry anywhere in the country.12
The Universal House (pictured left lounge diner right) was given to the Chilternin ulkoilmamuseo after 40 years temporary use. The Mark 3 was manufactured by the Universal Housing Company Ltd, Rickmansworth.
The United States used prefabricated housing for troops during the war and for GIs returning home. Valmistalo classrooms were popular with UK schools increasing their rolls during the vauvabuumi of the 1950s and 1960s.
Many buildings were designed with a five-ten year life span, but have far exceeded this, with a number surviving today. In 2002, for example, the city of Bristol still had residents living in 700 examples.13 Many UK councils have been in the process of demolishing the last surviving examples of Second World War prefabs in order to comply with the British government's Decent Homes Standard, joka tuli voimaan vuonna 2010. Valmisrakentaminen on kuitenkin viime aikoina elpynyt Yhdistyneen kuningaskunnan nykyisen asuntopulan kompensoimiseksi

