1940’s Prefab’s – Simple but effective!

Despite a desperate need for housing it is interesting that a planned, strategic approach was taken to the design and functionality of prefabricated housing in the 1940’s.

Source: Prefab at Avoncroft Museum - Source: Own

A number of years ago I visited Avoncroft Museum of Historic Buildings (Link), which is situated near junction 1 of the M42 in Bromsgrove in the West Midlands. The Museum currently has over thirty different buildings/structures which have been rescued and re-built over the last five decades including a timber framed merchant’s house, a windmill, a church and a granary to name but a few. Although these and other buildings are absolutely fascinating, the building that really caught my attention was the 1940’s prefab. There was something about the speed of construction and the simplicity and layout of the structure that made the building stand out from the rest. For those reading this article who are unfamiliar with prefabricated buildings, these are basically factory built components that are assembled (put together) on site.

Nowadays, prefabrication is something that is commonly used for new built construction, and offers efficiencies in terms of thermal performance, speed, improved quality as well as cost efficiencies. In the 1940’s very little consideration would have been given to any of these factors, with the exception of speed of construction. Originally designed as temporary structures with a maximum lifespan of 10 years, prefabs were identified in the 1944 Housing Act as a means of providing accommodation quickly in towns and cities that had been bombed heavily in World War II. Prior to the introduction of the Housing Act in 1944 the UK Government identified the need to provide temporary houses and set about achieving this through an initiative called the ‘Temporary Houses Programme’ (THP). The summary below from Epsom and Ewell History Explorer (Link) explains the planned approach to housing shortage and how design played a key part in its success.

Source: Kitchen within Avoncroft Prefab - Source: Own

As early as May 1943 the Government decided to invest in a prototype, temporary steel bungalow, which became known as the ‘Portal Bungalow’, named after the then Minister of Works, Lord Portal. The Prime Minister, Winston Churchill, promised 500,000 temporary new homes, although only 156,623 were actually produced  (between 1945 and March 1949). The houses would be prefabricated in sections, in factories no longer needed for war production, transported to where they were needed and ‘bolted’ together on site, in a fraction of the time it would take to build a conventional house.

As steel was needed for the war effort, and therefore in short supply, no steel prefabs were actually made. Nevertheless, the steel ‘Portal’ prototype, used as a starting point, provided inspiration to private firms who were then commissioned to design and produce their own versions, but within specific guidelines.

All were to have two bedrooms, the floor area was to be 635 square feet, and to allow transportation from the factory, each component part could be no bigger than 7½ feet wide. The most important stipulation was that they all had to make use of the government-approved ‘heart-unit’. A back-to-back kitchen, bathroom, fire place with back boiler, airing cupboard and toilet. The design of the unit kept plumbing to a minimum. Only the relatively few imports (8,462) from the USA did not use the ‘heart-unit’.

There were thirteen types from eleven different manufacturers (one from the USA). Although they were all based on the same concept, each manufacturer had their own detailed designs, and decided which materials they would use. The materials were chosen from concrete, asbestos-cement, steel, wood and aluminium or a combination of several, as decided by each manufacturer.

Source: Bedroom within Avoncroft Prefab - Source: Own

Despite a desperate need for housing it is interesting that a planned, strategic approach was taken to the design and functionality of prefabricated housing in the 1940’s. If you ever have the privilege of visiting a 1940’s prefab you will be able to see for yourself how these speedily constructed dwellings were able to provide a functional layout incorporating basic facilities for a family at that time. Granted, there would not have been the level of thermal comfort or possibly space that most modern houses can offer however, I am sure that those who lived in prefabs in the 1940’s would have been more than happy with their living conditions.

Although many prefabs have long since been removed and replaced with more modern structures there are still many of examples of prefabs that remain, of which many are now listed (protected). This really stands as a testament to a well thought out approach to meet an urgent need for housing at the time. Given our current need for new housing I wonder if our current decision makers could learn any lessons from such an approach?

Source: Second Bedroom within Avoncroft Prefab - Source: Own

Source: Bathroom within Avoncroft Prefab - Source: Own

Iconic World War II image - Source: http://fortiesknitter.blogspot.co.uk/

Author: Gary O’Neill

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