Flatiron Building

Verified Timeline

Lore & Background

The Flatiron Building was developed as the headquarters of construction firm Fuller Company, which acquired the site from the Newhouse family in May 1901. Construction proceeded rapidly, and the building opened on October 1, 1902; it originally stood 285 feet (87 m) tall. In its early days, it was sometimes called 'Burnham's Folly' because of locals' skepticism of the building's structural integrity. The building's steel frame, designed by structural engineering firm Purdy and Henderson, was intended to withstand four times the maximum wind force of the area. The facade is divided vertically into three sections, similarly to the components of a classical column; the three-story base is clad with limestone, while the upper stories are clad with glazed terracotta. The site was previously occupied by the St. Germain Hotel (built by 1855) and later a seven-story apartment building, the Cumberland, built by Amos Eno after he purchased the entire block in 1857. After Eno's death in 1899, the lot was bought at auction by his son William Eno for $690,000 in April 1899, then resold to Samuel and Mott Newhouse in May 1899. The Newhouses initially did not consider a skyscraper feasible, but sold to Cumberland Realty Company (an investment partnership created by Harry S. Black, CEO of the Fuller Company) in May 1901. The Fuller Company sold the building in 1925 to an investment syndicate. The Equitable Life Assurance Society took over after a foreclosure auction in 1933 and sold it to another syndicate in 1945. Helmsley-Spear managed the building for much of the late 20th century, renovating it several times. The Newmark Group started managing in 1997. Ownership was divided among several companies, which started renovating again in 2019. Jacob Garlick agreed to acquire the building at an auction in early 2023 but failed to pay the required deposit, and three of the four existing ownership groups took over. In October 2023, the building's owners announced it would be converted to residential condominiums, planned to be complete by 2026.

Reader's Guide

The Flatiron Building is significant as one of the world's most iconic skyscrapers and a quintessential symbol of New York City. Its triangular shape, derived from the intersection of Fifth Avenue and Broadway, gave the surrounding neighborhood its name: the Flatiron District. The building was a pioneering steel-framed structure designed to withstand wind forces, and its facade treatment—a three-part classical column composition with limestone base and glazed terracotta upper stories—influenced later skyscraper design. It was designated a New York City landmark in 1966, added to the National Register of Historic Places in 1979, and designated a National Historic Landmark in 1989. The building's history reflects the rapid development of Manhattan north of the Financial District at the turn of the 20th century, as well as the evolution of ownership and management through the 20th and 21st centuries. Its conversion to residential condominiums, announced in 2023, marks a new chapter for the structure.

Did You Know?

• The building originally stood 285 feet (87 m) tall; the current 307-foot height includes a cowcatcher retail space and penthouse added shortly after opening.
• In its early days, locals called it 'Burnham's Folly' because of skepticism about its structural integrity.
• The steel frame was designed to withstand four times the maximum wind force of the area.
• The site was bought by Amos Eno in 1857 for $32,000; his son William Eno sold it in 1899 for $690,000—more than 20 times the original price.
• The building's triangular shape is actually a scalene right triangle, not an isosceles triangle like a genuine flatiron.