Milton Coste

Licensed Real Estate Associate Broker

(917) 416-7433
32 W 18TH Street #11B

For Sale · Listing by Douglas Elliman Real Estate

32 W 18TH Street #11B

Flatiron, Manhattan

$5,850,000

Interested in this property?
Active For Sale Condo

$5,850,000

$1,773 per sq ft

32 W 18TH Street #11B

Flatiron, Manhattan

Altair 18

MLS® #RLS20115941

RLS at REBNY

Listing by Douglas Elliman Real Estate

Open House Scheduled

Sunday, September 20 • 2:00 PM – 3:30 PM

REBNY 2025: signed Buyer Representation Agreement required before any showing.

4
Bedrooms
3.5
Baths
3,300
Sq. Ft.
1908
Year Built

Quick Summary

Bedrooms 4
Bathrooms 4 full, 1 half
Living Area 3,300 sq ft
Year Built 1908
Ownership Condo
HOA/Common Charges $7,101/mo
Property Taxes Contact for details
Neighborhood Flatiron
Floor 11 of 12

Property Highlights

  • Views: City Lights, City
  • Fireplace: 1 fireplace
  • Style: Loft architecture

Property Details

Type Condo
Ownership Condominium
Total Rooms 7
Baths 3 Full, 1 Half
Floor 11 of 12
View City Lights, City
Cooling Other
Pets Yes
Year Built 1908
Living Area 3,300 sq ft
Architectural Style Loft
Basement Other
Parcel # 0819-1421
Block/Lot 00819/1421

Listing History

Event Date Price Change
Listed Sep 17, 2026 $5,850,000 -
Currently Sep 18, 2026 $5,850,000 -

Description

Nestled at the intersection of Flatiron and Chelsea, this extraordinary pre-war condominium loft is a study in scale, light, and understated sophistication. Spanning approximately 3,300 square feet, the residence pairs soaring 12-foot ceilings with expansive mahogany-framed windows and beautifully proportioned rooms, creating the volume and authenticity of classic loft living with a decidedly refined point of view. The interiors are sophisticated yet deliberately restrained, allowing the architecture-and an exceptional collection of art-to take center stage. Expansive art walls, superb lighting, and dramatic ceiling height create a natural gallery-like quality, while Residence 11B's elevation is what truly sets it apart. Sitting above the surrounding view impediments that affect the lower floors, the loft enjoys remarkably open exposures in both directions, flooding the residence with light and framing iconic views north to the Empire State Building and south to One World Trade Center. It is an unusual convergence of scale, sky and outlook that makes this particular floor distinctly special within the building. The expansive entertaining space flows seamlessly into a beautifully appointed chef's kitchen with custom cabinetry, an impressive 18-foot countertop and top-of-the-line appliances. A separate cocktail bar and media room add another layer to the home's entertaining capabilities while preserving the openness and integrity of the loft. Four oversized bedrooms offer generous proportions, excellent closet space and en-suite baths. The primary suite is particularly serene, with four custom closets and a beautifully finished marble bath. Throughout the residence, central air conditioning, radiant heated floors, integrated audio, wide-plank flooring and a hand-carved limestone gas fireplace add comfort and refinement without competing with the loft's essential character. Altair 18 is a full-service, pet-friendly condominium with doorman and concierge service, a landscaped roof deck with barbecue and panoramic city views, a fitness center, and private storage.

Features & Amenities

Interior Features

Building None Fireplace (1)

Exterior Features

Building Roof Deck

Building Amenities

Storage

Building Information

Financial Details

Common Charges $7,101/mo
RE Taxes Contact for details

The Flatiron District is a busy intersection of history, technology, and luxury living. Named after the iconic Flatiron Building, the neighborhood is centered around Madison Square Park and is a hub for the city's 'Silicon Alley.' The real estate market is famous for its grand cast-iron loft buildings with high ceilings and expansive floor plans, alongside ultra-luxury glass towers that offer modern amenities and central Manhattan convenience.

Flatiron Live Market Data

View Neighborhood

Active Listings

106

Median Asking Price

$2.52M

Median $/Sqft

$1,768

Avg Days on Market

N/A

New This Week

13

Price Reduced

23%

Sold (30 Days)

21

Median Sale Price

$1.97M

Live data from RLS at REBNY • Updated 9/17/26, 10:28 PM EST

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Location

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32 W 18TH Street #11B, Flatiron, New York County

Building Information

Official NYC property records for this building

1908
Year Built
118 years old
12
Floors
21
Residential Units
C6-4A
Zoning District
Condominiums Historic District: Ladies' Mile Historic District

Tax & Assessment

Assessed Value: $11,336,847
Land Value: $2,204,997
Exemptions: $0

Note: Individual unit taxes may differ. Verify current tax bills with NYC DOF.

Lot Area: 6,900 SF
Building Area: 73,288 SF
Built FAR: 10.62
Allowed FAR: 10

Source: NYC PLUTO (Primary Land Use Tax Lot Output), NYC Department of City Planning (data.cityofnewyork.us)

Want help estimating ownership costs or understanding building compliance? Let's discuss

Frequently Asked Questions

Common questions about this property

The current listed common charges are $7,101 per month. Confirm the exact amount with Milton Coste before making an offer.

This property has 4 bedrooms and 3 full bathrooms and 1 half bathroom.

The listed interior living area is 3,300 square feet. Verify dimensions independently during due diligence.

According to MLS records, the building was constructed in 1908, making it approximately 118 years old.

This listing is a condominium. Buyers receive a deed to their individual unit and own their space outright, subject to condo association rules.

Pets are permitted at this property: Pets Allowed,Building Pets Allowed Comments:Pets Allowed. Contact Milton Coste for weight limits or breed restrictions.

At the current list price of $5,850,000 for 3,300 sq ft, the asking price per square foot is approximately $1,773. This figure is for reference only and may differ from appraised or assessed values.

To schedule a private showing, contact Milton Coste at (917) 416-7433 or [email protected]. Per REBNY guidelines effective 2025, a Buyer Representation Agreement is required before a buyer's broker can show you properties. You may attend open houses independently without one.

Have a question not answered here?

(917) 416-7433
MLS® ID: RLS20115941
First Listed: 9/17/2026
On Market: 9/17/2026
Price Changed: 9/17/2026
Contract Date: 9/17/2026

Listing Courtesy of Douglas Elliman Real Estate - Frances W Katzen

Listing Contact: (917) 705-1864

Listing information for certain New York City properties provided courtesy of the Real Estate Board of New York's Residential Listing Service (the "RLS"). The information contained in this listing has not been verified by the RLS and should be verified by the consumer. The listing information provided here is for the consumer's personal, non-commercial use. Retransmission, redistribution or copying of this listing information is strictly prohibited except in connection with a consumer's consideration of the purchase and/or sale of an individual property. This listing information is not verified for authenticity or accuracy and is not guaranteed and may not reflect all real estate activity in the market. ©2026 The Real Estate Board of New York, Inc., all rights reserved. This advertisement does not suggest that the broker has a listing in this property or properties or that any property is currently available.

Broker Commission Disclosure: Broker commissions are not set by law and are fully negotiable.

Buyer Notice: Planning to work with a buyer's broker? A Buyer Representation Agreement is required before your broker can show you properties, per REBNY/UCBA guidelines (effective 2025). You may attend open houses independently without one.

RLS at REBNY

RLS Data display by Keller Williams NYC. Data last updated on 9/18/2026 at 2:28 AM UTC

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Flatiron Market Update

21 sales last 30 days · $2.52M median · 5 months supply

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New listings in this building

Quick Facts

Status Active Type Condo Neighborhood Flatiron Borough Manhattan
County New York
Floor 11 of 12
Year Built 1908
First Listed 9/17/2026
Style Loft
Living Area 3,300 sqft
Common Charges $7,101/mo

Monthly Costs Estimate

Down Payment 20%

$1,170,000

Interest Rate Loading...

Source: Freddie Mac PMMS

Loan Term 30 years

Est. Monthly Payment

$0

Principal & Interest $0
PMI (under 20% down) $0
Common Charges $7,101
Total Monthly $0

Estimates only. Consult a lender for exact figures.

Mansion tax applies at this price point

New York State charges the buyer a mansion tax on residential purchases at $1,000,000 or more. At this asking price the tier is $5M to $9,999,999 at 2.25%, applied to the whole purchase price. It is due in cash at closing and cannot be financed.

Estimated mansion tax at asking

$131,625

Run the numbers on a different offer price

Estimate based on the asking price. Confirm your own obligation with your real estate attorney.

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