The Harrison Grandelli Team, a residential real estate group at CORE, maintains this Flatiron neighborhood guide. We put it together to help clients understand what sets the district around Madison Square Park and the Flatiron Building apart: its early skyscrapers and loft buildings, the park, its housing stock, and the everyday rhythm of Broadway, Fifth Avenue, and Park Avenue South.
Flatiron sits between Union Square and NoMad. Its center is the crossing of Broadway and Fifth Avenue at 23rd Street, where the Flatiron Building faces Madison Square Park. Around it, nineteenth-century department stores, cast-iron loft buildings, and early office towers hold showrooms, offices, and a growing number of loft apartments and condominiums.
Summary
Today, Flatiron is defined by:
Housing in loft conversions, prewar co-ops, and newer condominiums in former commercial buildings
Madison Square Park, with its public art program and the original Shake Shack
Landmark early skyscrapers: the Flatiron Building, the Metropolitan Life Tower, and the buildings of the Ladies' Mile Historic District
Food anchors including Eataly, Felice, Rezdôra, and Eleven Madison Park
Subway access on the N, R, W, 6, F, and M, with the 1 just west and Union Square a few blocks south
History
The area was originally Lenape land. Madison Square was set aside in the 1807–11 street plan as part of a much larger parade ground, and the park opened in its current form in 1847. By the 1850s the blocks around it held mansions and grand hotels, including the Fifth Avenue Hotel. Stanford White's Madison Square Garden opened at 26th Street and Madison Avenue in 1890.
From the 1860s to the 1890s, Broadway and Sixth Avenue between 14th and 23rd Streets became the Ladies' Mile, a shopping district of large cast-iron and masonry department stores. When the stores moved uptown around 1900, the buildings filled with publishers, toy makers, and garment manufacturers. The Flatiron Building, designed by Daniel Burnham's firm and completed in 1902, gave the district its name. The Metropolitan Life Tower on Madison Avenue was the tallest building in the world from 1909 to 1913.
Through much of the twentieth century this was a manufacturing and office area. Lofts began converting to apartments in the 1970s and 1980s, the Ladies' Mile Historic District was designated in 1989, and the Madison Square Park Conservancy restored the park in the early 2000s.
Boundaries
Flatiron has no single legally fixed outline. Brokers, maps, and civic sources use closely related edges. The boundary we use in this guide is:
South: East and West 17th Street (toward Union Square)
North: East and West 26th Street (toward NoMad)
East: Park Avenue South (toward Gramercy)
West: Sixth Avenue (toward Chelsea)
Primary ZIP code: 10010, with parts of 10011 and 10003. The area falls mainly in Manhattan Community District 5.
Fuzzy edges: many maps start NoMad at 25th or 26th Street. The blocks west of Sixth Avenue are Chelsea, and some listings stretch "Flatiron" south to 14th Street.
Real Estate & Prices
The Harrison Grandelli Team works across Flatiron's loft conversions, co-ops, and condominiums. Floor plates in former commercial buildings differ from typical apartment-house layouts, and some buildings mix residential and commercial floors, so review offering plans and building rules carefully.
Sales (NYC Department of Finance, October 2025 – September 2026)
Within the boundary used in this guide, residential sales recorded by the city from October 2025 through September 2026 had a median price of $2,700,000 across 134 sales. By type, the median was $2,250,000 for co-ops (33 sales) and $2,838,000 for condominiums (100). One townhouse sale is included in the total but too few for a separate median. These figures count recorded co-op, condominium, and one- to three-family house sales. They leave out sales of whole rental buildings and count a purchase covering several tax lots once. They also exclude limited-equity co-op sales, non-home units such as storage, parking and staff rooms, sales under $100,000, small transfers on units that also recorded a market sale, and transfers that aren't home sales, such as commercial units and multi-property deals. Recorded sales lag closings by weeks to months, so the most recent months may be undercounted. Figures are rounded to the nearest $1,000.
Source: NYC Department of Finance recorded sales, October 2025 – September 2026.
Rent and Time on Market (StreetEasy, September 2026)
The median asking rent was $6,550 a month, and sale listings spent a median of about 83 days on market.
Source: StreetEasy Data Dashboard, September 2026.
A few large loft or new-condo closings can move these figures noticeably.
Notable Restaurants & Food Scene
Flatiron's dining runs from quick counters to tasting menus, much of it within a few blocks of Madison Square Park. These are places we point clients to as they get to know the area:
Eataly NYC Flatiron (200 Fifth Avenue): Italian marketplace with counters, restaurants, and a cooking school.
Felice Flatiron (220 Fifth Avenue): Tuscan-leaning Italian restaurant at Fifth Avenue and 26th Street, on Madison Square Park, in a 1914 Beaux-Arts building.
Motek (928 Broadway): Eastern Mediterranean restaurant from Miami, serving shakshuka, house-baked pita, and hummus, with weekend brunch.
Sugarfish (33 East 20th Street): Sushi restaurant built around chef Kazunori Nozawa's set "Trust Me" menus. It takes no reservations.
Gramercy Tavern (42 East 20th Street): Danny Meyer's New American restaurant, open since 1994.
Rezdôra (27 East 20th Street): Stefano Secchi's restaurant devoted to the cooking of Emilia-Romagna, centered on house-made pasta.
Oiji Mi (17 West 19th Street): Modern Korean restaurant, with walk-in seating at the bar.
Eleven Madison Park (11 Madison Avenue): Daniel Humm's tasting-menu restaurant facing Madison Square Park.
ABC Kitchen (35 East 18th Street): Jean-Georges Vongerichten's farm-driven restaurant inside the ABC Carpet & Home building.
The Clocktower (5 Madison Avenue, in The New York EDITION hotel): British-leaning restaurant in the base of the Metropolitan Life Tower, overlooking Madison Square Park.
Tacombi (30 West 24th Street): Casual taquería for tacos and quick meals.
Devoción (25 East 20th Street): Café from the Colombian coffee roaster, with pastries and seating.
Shake Shack's original kiosk, a permanent stand since 2004, sits inside Madison Square Park near Madison Avenue and East 23rd Street, and more restaurants line the blocks north of the park in NoMad.
Sources: restaurant websites (checked October 2026). Hours change, so confirm before visiting.
Parks & Outdoor Spaces
Madison Square Park: Six-acre park between 23rd and 26th Streets, Fifth and Madison Avenues, run with the Madison Square Park Conservancy. It has lawns, a dog run, a playground, and Mad. Sq. Art, a program of large outdoor commissions that has run since 2004.
Flatiron Plaza and Worth Square: Pedestrian plazas created in 2008 at the crossing of Broadway and Fifth Avenue, with seating and seasonal markets. Worth Square holds the 1857 obelisk over the grave of General William Jenkins Worth.
Union Square Park: Public park a few blocks south, with the Union Square Greenmarket.
Schools & Education
Public schools are operated by the NYC Department of Education, Community School District 2. Listing a school here is not a recommendation or a ranking. Check programs, admissions, and zoning on schools.nyc.gov and MySchools; zones change.
Manhattan Village Academy: 9–12, 43 West 22nd Street. https://www.schools.nyc.gov/schools/M439
Baruch College Campus High School: 9–12, 55 East 25th Street. https://www.schools.nyc.gov/schools/M411
The Clinton School: 6–12, 10 East 15th Street (just south of our boundary). https://www.schools.nyc.gov/schools/M260
Elementary zoning splits across nearby schools depending on the block. Check a specific address on MySchools.
Higher education: Baruch College (CUNY) is at 55 Lexington Avenue and East 24th Street, a block east of the boundary. https://www.baruch.cuny.edu/
Transit & Getting Around
N / R / W: 23rd Street (Broadway), with 28th Street just north
6: 23rd Street (Park Avenue South), with 28th Street just north
F / M: 23rd Street (Sixth Avenue), with PATH at 23rd Street
1: 18th Street and 23rd Street (Seventh Avenue), just west of the boundary
4 / 5 / 6 / L / N / Q / R / W: 14th Street–Union Square, a few blocks south
Buses run on Fifth, Madison, and Sixth Avenues, and the M23 Select Bus Service crosses on 23rd Street. Broadway has a bike lane, and Citi Bike docks are spread across the district.
Shopping & Retail
Fifth Avenue and Broadway: Flagship clothing and home stores in the low 20s and upper teens.
Sixth Avenue (Ladies' Mile): Large-format stores in the landmarked former department-store buildings between 18th and 23rd Streets.
ABC Carpet & Home (888 Broadway): Home and design store in a landmarked 1882 building.
Showrooms and design: Furniture and design showrooms still cluster on Broadway and the side streets from the upper teens through the 20s.
Culture, Arts & Nightlife
Mad. Sq. Art: Madison Square Park Conservancy's rotating outdoor commissions. Check the current installation on the Conservancy's site.
Flatiron Building: The landmark's exterior and the plaza in front of it are a constant stop for architecture walks.
Nightlife centers on restaurant bars and hotel bars around Madison Square and Broadway.
Historic Landmarks & Notable Features
Flatiron Building (175 Fifth Avenue): Steel-framed, limestone and terra-cotta tower by D.H. Burnham & Co., completed in 1902. It was designated a New York City landmark in 1966 and a National Historic Landmark in 1989. After more than a century as offices, it was converted to condominiums, completed in 2026.
Metropolitan Life Insurance Company Tower (1 Madison Avenue): 700-foot campanile-style tower by Napoleon LeBrun & Sons, completed in 1909.
Appellate Division Courthouse (35 East 25th Street): Marble Beaux-Arts courthouse by James Brown Lord, completed in 1900, with an exterior lined with sculpture.
Ladies' Mile Historic District: Designated in 1989, covering the department-store and loft buildings along Broadway, Fifth, and Sixth Avenues between about 15th and 24th Streets.
Lord & Taylor Building and Gorham Building (Broadway at 20th and 19th Streets): The former Lord & Taylor store at 901 Broadway (1869–70), with its corner tower, and the Gorham Building at 889–891 Broadway (1883–84), built for the silver company.
Housing & Daily Logistics
Flatiron's housing is defined by loft scale and the park. Converted floor plates offer high ceilings, large windows, and open layouts, and some buildings face Madison Square Park. Co-ops and condos in former commercial buildings call for careful review of building rules, which is part of our diligence on almost every purchase.
In our experience, apartment, park, Eataly or Union Square errands, and several subway lines often fall within a few blocks. Buildings facing the park and along Fifth Avenue and Broadway form a distinct tier, while side streets toward Sixth Avenue and Park Avenue South widen the mix of layouts and price points.
About the Harrison Grandelli Team
As a residential group at CORE, we work across Manhattan and Brooklyn, including Flatiron's loft conversions, co-ops, and condominiums. We maintain this guide as part of helping clients understand the neighborhood in depth. If you're thinking about a purchase or rental here, we'd be glad to share what we know on the ground.