Friday, February 2, 2018

Prefabrication experiments - 152 - Open Building - 03 - Levitt Technology Corp's Manufactured Row-housing System

Operation breakthrough launched by the US government’s Housing and Urban Development in 1969 was one the 20th century’s important vectors for promoting innovative urban strategies as well as  the industrialization of construction. Bringing together academics, architects and industries to project the future of housing produced a diversity of prototypes. From National Homes’ post-tensioned superframes to the iconic Shelley checkerboard stacking, all sought to Increase efficiency and productivity in the construction industry while offering planning flexibility to suit the multiple and varying needs of modern lifestyles. Although not usually linked to industrialized building systems, even William Levitt and Sons proposed a building system that combined the ideal of manufactured sub-assemblies with the need for personalization. 

William J. Levitt is best known for his onsite standardized construction methods synonymous with post World War 2 American suburbanization. The onsite assembly line specialized construction tasks and had workers follow each other from house to house replicating specified and specialized tasks. A model of process efficiency Levitt controlled every part of the building process from procuring elements and building products directly from manufacturers to the incremental scheduling of each house. Levitt and sons produced thousands of uniform dwellings. Even as this process was perfected, operation breakthrough allowed Levitt to imagine a reformed building method combining standard parts into an open model of industrialization.


Levitt Technology Corporation worked in partnership with architects B.A. Berkus and Associates along with manufacturers and suppliers. The proposal employed staggered volumetric singlewides as the basic modular building blocks.  Identically dimensioned service core (wet) boxes with standardized plans and served space boxes (dry) with variable plans were juxtaposed or stacked in a linear massing of solids and voids. Elements such as entry door porticoes, bay windows, window canopies and patio or deck volumes could be added to the basic box system to vary each dwelling’s identity; a type of mass customization based on user preferences. Rhythmic extrusions and intrusions projected a dynamic streetscape while the decorative elements concealed the proposal’s repetitive nature.  The simple timber stick construction leveraged the heritage of American building culture with standardized mobile home production to produce replicable medium density low-rise housing process.

above left: Shelley Construction System; below left: National Homes' Superframes; right: Levitt Technology Corporation's System 

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