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Thelarge panel system building[a] is a building constructed of large,prefabricated concrete slabs. Such buildings are often found in housing development areas. Although large panel system-buildings are often considered to be typical ofEastern Bloc countries in the second half of the 20th century, this prefabricated construction method was also used extensively inWestern Europe and elsewhere, particularly inpublic housing (seetower block).
This construction method, known asPlattenbau in German, involves assembling buildings from story-high precast concrete elements that are manufactured in a factory and then transported to the construction site for assembly. It emerged from efforts to developserial and industrialized housing construction, evolving through techniques such as block construction, large-block construction, concrete strip construction, andCast-in-place concrete panels from the early 20th century onward.
For large panel construction to be effective, it requires typification, standardization, and the capability for industrialized production, transportation, and assembly of the heavy elements. Due to evolving political and technological conditions, this method became widespread across Europe afterWorld War II. While large panel buildings in Western Europe were primarily used for social housing projects, they became the dominant construction method for nearly all purposes in socialist Europe from the early 1960s onward. However, economic constraints in Eastern European planned economies limited the full realization of the system’s increasing flexibility and complexity.
In the mid-19th century, a boom in prefabrication began with the export of preassembled houses made of wood and iron toBritish colonies.[1][2] This trend ended around 1860 with the gold rush, after which manufacturers shifted their focus back to the domestic market. However, prefabrication only had a chance of success if it could compete with traditionalmasonry construction. This led to the spread of castconcrete in England and France.[3]
Theartificial stone companyLippmann, Schneckenburger & Cie. fromBatignolles, nearParis, was the first to produce hollow concrete panels that could be assembled into houses.[4][2] However, these panels had to be small to remain transportable, which limited their size. In 1875, W. H. Lascalles experimented with a block construction system using reinforced elements measuring 61 × 91 × 4 cm. The English architectRichard Norman Shaw was commissioned to designcottages in a rustic style for this system. Lascalles and Shaw were awarded a gold medal at the1878 Paris World Exhibition for their houses, which were inspired by theQueen Anne style architecture.[5]
The first known houses constructed from large prefabricated concrete panels were built byJohn Alexander Brodie, an employee of the city ofLiverpool. Between 1903 and 1905, he oversaw the construction of worker housing on Eldon Street for theHousing Council. This project was experimental, with work processes being documented photographically. Brodie's goal was to create housing quickly and affordably.
The buildings were constructed partly using in-situ concrete and masonry, while others featured story-high prefabricated panels with window openings. Assembly involved erecting a house-sized scaffold. Some wall panels were even cast on the completed floors and then tilted into position. In 1905, Brodie presented another prefabricated house at the Cheap Cottages Exhibition inLetchworth, England.[6][7]
In 1902, the architectGrosvenor Atterbury developed a panel construction system, inspired byThomas Edison's cast concrete houses.[2] He first applied this method in 1906 in a privately funded experimental project inPhiladelphia.[2] By 1910, he was able to construct one-and-a-half-story buildings,[8] and by 1918, he successfully built two-story structures as part of the third phase of theForest Hills Gardens garden city project inQueens, New York.[2]
The panels were story-high and had no window openings, as these would have made them too heavy. Technically, the system was closer to strip construction. Additionally, the basement was built with masonry, while the ground floor was constructed using in-situ concrete.
Atterbury's construction principle became known as the Atterbury System and gained recognition in Europe. In the Netherlands, it was patented as the "System Bron" and was first used in 1921 for the construction ofBetondorp ("Concrete Village"), a residential district inAmsterdam-Oost. The two-story row houses were designed by Dutch architect Dick Greiner and were part of a broader series of experimental concrete housing projects.[9]
Prefabrication was pioneered in theNetherlands followingWorld War I, based on construction methods developed in theUnited States. The first German use of large panel system-building construction is what is now known as theSplanemann-Siedlung in Berlin'sLichtenberg district, constructed in 1926–1930.[10][2] These two- and three-storey apartment houses were assembled of locally cast slabs, inspired by the DutchBetondorp inWatergraafsmeer, a suburb ofAmsterdam.
InEast Germany, large panel system-building areas have been designated asNeubaugebiet ("New development area"). Virtually all new residential buildings since the 1960s were built in this style, as it was a quick and relatively inexpensive way to curb the country's severe housing shortage, which had been caused by wartime bombing raids and the large influx of German refugees from further east. At the same time, many buildings from earlier eras had substantial drawbacks, such as coal heat, nohot running water, or bathrooms shared by multiple units. As these buildings fell into disrepair, many of their inhabitants moved into newer large panel system-building housing. Today, large panel system-buildings are often no longer desirable, due in part to both their low thermal efficiency, and their rapid deterioration as a result of their vulnerability to damp ingress and their cheap and quick construction methods, while older housing stock has undergone extensive renovation or been replaced with more modern dwelling units.
There were several common large panel system-building designs. The most common series was theP2, followed by theWBS 70, theWHH GT 18, andQ3A. The designs were flexible and could be built as towers or rows of apartments of various heights. The short sides of building blocks often featured large-scale murals or colourfulmosaics.
Since the entire building had a standard structure, apartment layouts were also standardized. Furniture producers used this to offer prefabricated sets that matched a variety of typical apartment setups.
There have been projects with low rise "Plattenbauten" such as the town ofBernau just north of Berlin. This town had an almost complete historic center of mainly wooden framed buildings within its preserved city walls. Most of these were torn down after 1975 and during the eighties to be replaced by 2–4 storey buildings constructed of prefabricated concrete slabs. To fit in with the medieval church and the almost complete city wall, the houses used rather small design units and decreased in height the farther away they were from the Church and the nearer they came to the city wall. A similar project was theNikolaiviertel around the historic Nikolai church inBerlin's old centre. In the case of the Nikolaiviertel the buildings were made to look more historic.
Large panel system-building apartments were once considered highly desirable in East Germany, largely due to the lack of any other viable alternative. The main alternatives of the time were overcrowded, deteriorating prewar housing, often with wartime damage still visible, due to policies that preferred new construction over repairing the damaged housing stock. Plattenbau suburbs were planned not only for apartment buildings, but included schools, shopping centers, hospitals, restaurants and recreational facilities. Commercial areas were either on the ground floor of high-rise apartment blocks, or in separate structures. Since few citizens owned cars, the developments were planned to include tramways, subways and bus lines.
Sincereunification a combination of decreasing population, renovation of older buildings, and construction of modern alternative housing has led to high vacancy rates, with some estimates placing the number of unoccupied units at around a million. Many large panel system-building apartments were built in giant settlements, often on the edge of cities (such asMarzahn andHellersdorf inBerlin andHalle-Neustadt), making them inconveniently located.[citation needed]
While some large panel system-building apartments have been torn down, many are renovated to a modern standard. Especially in bigger cities, these districts are slowly getting more popular again, since they provide affordable apartments and often walkable environments with good public transport systems.
InFinland, particularly in northern towns, such asRovaniemi, Plattenbauten are commonplace. Rovaniemi was nearly completely destroyed during World War II and subsequently rebuilt from scratch, with new concrete panel buildings replacing old wooden houses and becoming a symbol of modernization.[11] Whereas in the rest of Europe large panel system-building are associated with public housing, in Rovaniemi they are favoured by the middle classes on their way to purchasing a bungalow.[citation needed]
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