MANHATTAN NEIGHBORHOOD GUIDE

Flatiron Apartments for Sale

Madison Square Park luxury, architecturally significant prewar buildings, boutique condos, and central Downtown–Midtown access

By Anthony Guerriero, Licensed Real Estate Broker | Manhattan Miami Real Estate | Updated May 2026

The Flatiron District centers on Madison Square Park — prewar loft conversions, architecturally significant boutique condos, and a concentrated cluster of luxury towers with direct park exposure. Inventory ranges from classic co-op apartments in early-20th-century buildings to full-floor penthouses in the 22nd Street tower corridor. Pricing is shaped by park proximity, building vintage, and floor height. From $1.2M studios to $10M–$50M+ trophy penthouses at One Madison and Madison Square Park Tower, Flatiron operates as a building-specific market.

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FLATIRON

Flatiron Real Estate Map

Flatiron is generally framed by 20th Street to the south, 26th Street to the north, Sixth Avenue to the west, and Lexington Avenue to the east, with Madison Square Park and the Flatiron Building anchoring the neighborhood’s core.

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Flatiron at a Glance

Boundaries14th St to 23rd St; 6th Ave to Park Ave South

ZIP Codes10010, 10003

Inventory MixPrewar lofts, boutique condos, new-development towers, co-ops

Entry$1.2M (studio/1BR co-op)

Premium$3M–$8M (2–3BR condo)

Trophy$10M–$50M+ (penthouse / full-floor)

Anchor ParkMadison Square Park

SubwayN/R/W · 6 · F/M · L · PATH (at 14th/23rd)

Avg Active Listings~200 typical

Flatiron vs Adjacent Markets

Factor	Flatiron	NoMad	Gramercy	Chelsea
Geography	14th–23rd, 6th–Park Ave S	23rd–31st, 6th–Lex	East of Park Ave S to 3rd Ave	14th–34th, west of 6th
Inventory	Mixed co-op + condo + loft	90% condo, tower-heavy	Heavy co-op, Gramercy Park	Mixed; High Line corridor
Entry Price	$1.2M	$1.5M	$900K	$1M
Premium 2BR	$3M–$5M	$3M–$6M	$2M–$4M	$3M–$6M
Character	Park-centric, prewar + boutique	Vertical, restaurant-heavy	Classic, park-gated, quiet	Gallery, High Line, starchitect

Notable Buildings

Building	Address	Type	Note
Madison Square Park Tower	45 E 22nd St	New Development	2021; 83 units; Kohn Pedersen Fox
One Madison	23 E 22nd St	New Development	2013; 60 units; Cetra/Ruddy
212 Fifth Avenue	212 Fifth Ave	Prewar Conversion	2018; 48 units; landmark facade
10 Madison Square West	10 Madison Sq W	New Development	2017; 125 units; direct park frontage
21 East 22nd Street	21 E 22nd St	New Development	Boutique; Madison Square Park views
45 East 22nd Street	45 E 22nd St	New Development	Tower; city panoramas
5 East 22nd Street	5 E 22nd St	New Development	Boutique; park proximity
The Whitman	21 E 26th St	Boutique Condo	2015; 35 units; Flatiron/NoMad border
141 Fifth Avenue	141 Fifth Ave	Prewar Conversion	Boutique prewar; Union Sq edge

Living in Flatiron

Madison Square Park anchors the neighborhood. The park functions as Flatiron’s central living room — Shake Shack, seasonal art installations, the dog runs, and the backdrop for trophy tower marketing. Buildings with direct park exposure (10 Madison Square West, One Madison, Madison Square Park Tower) trade at meaningful premiums.

Design and food culture. Flatiron hosts Eataly, a dense restaurant tier along Park Avenue South and Broadway, and a retail spine combining fashion, beauty, and home design. The neighborhood’s daytime energy is driven by tech and creative office tenants (the original Silicon Alley), giving it a live-work density that persists after hours.

Prewar architecture. South of 23rd Street, the stock shifts from the vertical towers that define NoMad to lower-rise prewar lofts, landmark commercial buildings converted to residential, and boutique new construction threaded between them. This mixed fabric is part of Flatiron’s appeal — architectural variety within a compact footprint.

Price Ranges by Property Type

Property Type	Typical Price Range
Studios & 1-Bedrooms (co-op)	$800K–$2M
1-Bedroom (condo)	$1.2M–$2.5M
2-Bedroom (condo)	$2.5M–$5M
3-Bedroom	$4M–$10M
Penthouse / Full-Floor	$10M–$50M+

Flatiron Market Overview

Prewar stock dominates. Unlike NoMad (north of 23rd) which is predominantly new-development tower inventory, Flatiron’s fabric is older — prewar commercial lofts converted to residential, co-op buildings from the early 20th century, and a handful of new-construction insertions. This creates a mixed co-op/condo market with more entry points than NoMad but fewer trophy-tier towers.

New development scarcity. Available new-development inventory concentrates along the 22nd Street corridor (Madison Square Park Tower, 5 East 22nd, 21 East 22nd, 45 East 22nd) and at the neighborhood’s edges (One Madison, 10 Madison Square West, 212 Fifth Avenue). Once these buildings sell out, resale is the primary transaction path.

Park proximity premium. Direct Madison Square Park exposure commands 10–20% premiums over comparable units one or two blocks south. Floor height and exposure direction (north vs south park views) are the primary differentiators within the same building.

Co-op vs condo mix. Flatiron is roughly 40% co-op, 60% condo — a more balanced mix than the condo-dominant markets to the north and west. Co-ops provide lower per-foot entry pricing but carry board approval, sublet restrictions, and financing requirements that international and pied-à-terre buyers may find prohibitive.