Architecture and Design Atlas

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Concept

Open Plan

Also Known As Open Floor Plan
Design Principles and Theory

Interior space with as few fixed partitions as possible, made practical when frames of steel and reinforced concrete took the loads out of interior walls. Frank Lloyd Wright's flowing Prairie interiors and Le Corbusier's free plan opened the idea, and it has governed houses and offices ever since, along with the running argument over how much openness people actually want.

Facts
Disputed
Formulated Year
1950 2
This source narrows the German Quickborner team's office landscape concept, the specific innovation that broke walls out of the office plan, only to the 1950s, not a single year; 1950 anchors the stated decade rather than a claimed precise date. The domestic open plan under Frank Lloyd Wright is older still and also carries no single year in this source.
Domain
Domain (category)
Spatial 1
Concept Domain
Spatial concept 1
FAQs

What made open plan interiors structurally possible?

Steel and reinforced concrete frames, which took the load-bearing role away from interior walls.

Frames of steel and reinforced concrete, which took the load-bearing role away from interior walls and let architects remove fixed partitions, as Frank Lloyd Wright's flowing Prairie interiors and Le Corbusier's free plan first showed.
Connections

Associated With

The flowing interiors of the Prairie houses opened the modern open plan.

Source Encyclopedia Britannica
Source Encyclopedia Britannica

Editorial link from the concept to a related style, element, milestone or figure; no citation attached

Sources
1. Encyclopedia Britannica
Encyclopedia Britannica, Inc.View the Source
2. Wikipedia
Wikimedia FoundationOpen plan, Development of open-plan workspace types section
Quote, Open plan, Development of open-plan workspace types section
In the 1950s a German team named Quickborner developed the office landscape, which used conventional furniture, curved screens, large potted plants, and organic geometry to create work groups on large, open floors.
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