860–880 Lake Shore Drive is a twin pair of glass-and-steel apartment towers on N. Lake Shore Drive along Lake Michigan in the Streeterville neighborhood of Chicago, Illinois. Construction began in 1949 and the project was completed in 1951. They were designated as Chicago Landmarks on June 10, 1996. They were added to the National Register of Historic Places on August 28, 1980. The 26 floor, 254 ft (82 m) tall towers were designed by the architect Ludwig Mies van der Rohe, and dubbed the "Glass House" apartments. Construction was by the Chicago real estate developer Herbert Greenwald, and the Sumner S. Sollitt Company. The design principles, first expressed in the 1921 Friedrichstrasse Skyscraper competition in Berlin and built thirty years later in 860–880 Lake Shore Drive, were copied extensively and are now considered characteristic of the modern International Style as well as essential for the development of modern High-tech architecture.
The towers were not entirely admired at the time they were built, yet they went on to be the prototype for steel and glass skyscrapers worldwide. Initially, it was difficult to acquire financing for the project, turned down by lenders like Baird & Warner who considered the design scheme to be too extreme. 860–880 Lake Shore Drive Apartments embody a Modernistic tone with their verticality, grids of steel and glass curtain walls (a hallmark of Mies’ skyscrapers), and complete lack of ornamentation. Since Mies was a master of minimalist composition, his principle was “less is more” as it is demonstrated in his self-proclaimed “skin and bones” architecture.
This building like many of his Chicago high-rise structures causes controversy in the pure minimalist community due to its mullions. Mies is hailed as the father of "less is more" however 860–880 Lake Shore Drive is covered in non-functional I-beam mullions. Mies explains how the mullions do not violate his less is more philosophy in a 1960 interview "To me structure is something like logic. It is the best way to do things and express them". The mullions on his buildings reflect the inner structure and therefore give truth to the aesthetic of the building. The idea of truth in architecture aligns with the aesthetic and principles of the international style as taught at the Bauhaus.
Krueck and Sexton Architects of Chicago were commissioned to renovate the historical towers. Teaming up with them were the preservation architects, Harboe Architects along with forensic and structural analysis firm, Wiss, Janney, Elstner Associates, Inc. This team was directed to fix prior renovations done to the buildings. The preceding renovations took away from the historical accuracy of the towers. Architects were assigned to restore the distorted lighting scheme with original translucent glass, replace the deteriorating travertine plaza, which connects the two towers, and exchange for stones with more historical precision.
- The buildings were finished in 1951 and were featured in a 1957 article in Life Magazine on Mies.
- In 1996 they became the first buildings designed by Mies van der Rohe to receive Chicago Landmark Status.
- The glass towers have been on the National Register of Historic Places since 1980.
- In June 2005, the United States Postal Service included the towers in the commemorative stamp program, Masterworks of Modern Architecture, wherein they were listed as one of the “12 outstanding examples of modern buildings.”
Figures and statistics 
- The twin towers are 26 stories high.
- The buildings are 46 feet apart.
- The steel skeletal frames rest on a 21 foot grid and are uniform in their design.
- The building was originally designed for 860 to contain 90 three bedroom apartments and 880 to hold 158 one bedroom apartments. Many of the units have been combined to enlarge living spaces.
Zoned schools 
Residents are zoned to Chicago Public Schools. Residents are zoned to Ogden School and Wells Community Academy High School.
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