North – 23rd Street and NoMad
South – 4th Street, Union Square, Greenwich Village
East – Park Avenue South and Gramercy Park
West – Sixth Avenue and Chelsea
The Flatiron District is a neighborhood in the New York City borough of Manhattan.
It was named after the iconic Flatiron Building at 23rd Street, Broadway and Fifth Avenue. Generally, the Flatiron District is bounded by 14th Street, Union Square and Greenwich Village to the south; the Avenue of the Americas (Sixth Avenue) and Chelsea to the west; 23rd Street and Madison Square (or NoMad) to the north; and Park Avenue South and Gramercy Park to the east.
Midtown Manhattan is the largest central business district in the world and ranks among the most expensive pieces of real estate
Broadway cuts through the middle of the district, and Madison Avenue begins at 23rd Street and runs north. At the north (uptown) end of the district is Madison Square Park, which was completely renovated in 2001. The Flatiron District encompasses within its boundaries the Ladies' Mile Historic District and the birthplace of Theodore Roosevelt, a National Historic Site. The Flatiron District was also the birthplace of Silicon Alley, a metonym for New York's high technology sector, which has since spread beyond the area.