4
History
As the city of New York expanded northward during the second half of 
the 19th century, small plots of land in between or on the edge of new 
buildings remained undeveloped. One of the most well known of these 
was the narrow triangular site at 23rd Street, between Fifth Avenue and 
Broadway. The “Flat Iron,” as it quickly became known, changed owners 
many times, but wouldn’t be developed until the Chicago-based Fuller 
Company bought the site in 1901.
The Fuller Company, a major Chicago-based contracting firm 
specializing in the construction of skyscrapers, planned to build a 
new showcase headquarter on the site. The founder of the company, 
George A. Fuller, had died the year before, and the new building would 
be named the Fuller Building in his honor. 
The Fuller Company engaged Chicago architect Daniel H. Burnham 
to design the building and, utilizing the Fuller Company’s expertise 
with steel frame construction, he proposed a 20-story structure that 
would reach a height of 285 ft. (86.9 m). A penthouse would be added 
in 1905, increasing the building’s height to 307 ft. (93 m). The building’s 
Broadway front would be 190 ft. (60 m) wide, the Fifth Avenue 
front 173 ft. (52.7 m) wide, and the 
22nd Street side just short of 87 ft. 
(26.5 m) wide. At the “point” of the 
triangle the building would only be 
6.5 ft. (2 m) wide and would form a 
25-degree acute angle.
Burnham saw the building as a 
vertical Renaissance palazzo with 
Beaux-Arts, or neoclassical, styling. 
Visually the building would be divided 
into three distinct sections. It would 
consist of a richly decorated, three-
story limestone façade at the bottom 
and a broad, repetitive midsection in 
a light tan monochrome terra-cotta. 
The structure would then be topped 
off with a crowning cornice that would 
run the entire length of the building.
With its steel skeleton structure, the construction of the building was 
carried out rapidly and without major incident. While other New York 
skyscrapers at the time were often thin towers rising from pedestal-like 
blocks, the Flatiron was a single massive structure. This radical design, 
combined with its great height and unusual shape, created a great deal 
of debate as the building neared completion in 1902.
Many New Yorkers believed the structure would be unstable and would 
fall over at the first gust of wind. The building had even been nicknamed 
“Burnham’s Folly” and bets were placed on how far the debris would 
reach when it blew over. Strong winds came and went, and the Flatiron 
Building withstood them—as it continues to do today, over a century 
later. It is proof that the structure was not only a strong architectural 
idea, but a groundbreaking engineering marvel as well.
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