Milton Coste

Licensed Real Estate Associate Broker

(917) 416-7433
35 W 20th Street #3

For Sale · Listing by Keller Williams NYC

35 W 20th Street #3

Flatiron, Manhattan

$3,400,000

Interested in this property?
Active For Sale • Condo

$3,400,000

$2,566 per sq ft

35 W 20th Street #3

Flatiron, Manhattan

MLS® #RLS20118982

RLS at REBNY

Listing by Keller Williams NYC

2
Bedrooms
2
Baths
1,325
Sq. Ft.
1858
Year Built

Quick Summary

Bedrooms 2
Bathrooms 2
Living Area 1,325 sq ft
Lot Size 2,300 sq ft
Year Built 1858
Ownership Condo
HOA/Common Charges $750/mo
Property Taxes $25,008/yr
Neighborhood Flatiron

Property Highlights

  • Character: Pre-war building (1858)

Property Details

Type Condo
Ownership Condominium
Total Rooms 4
Baths 2 Full
Pets DogsOk, Yes
Cross Street 5th Avenue & 6th Avenue
Year Built 1858
Living Area 1,325 sq ft
Structure Type House,MixedUse,Townhouse
Furnished Unfurnished
Lot Size 2,300 sq ft
Parcel # 0822-1104
Block/Lot 00822/1104

Listing History

Event Date Price Change
Listed Oct 2, 2026 $3,400,000 -
Currently Oct 2, 2026 $3,400,000 -

Description

Boutique scale, full-floor living and remarkable privacy come together at Residence 3 of 35 West 20th Street, an expansive two-bedroom, two-bathroom condominium loft in the heart of Flatiron. Encompassing approximately 1,325 square feet, the residence combines authentic downtown character with a comfortable, modern layout. High ceilings, exposed brick and original timber beams give the home a distinctive architectural identity, while oversized windows bring natural light into the generous open living and dining space. A fireplace adds warmth and a natural focal point to the room. The open kitchen integrates easily with the main living area and features extensive white cabinetry, stainless-steel appliances and counter seating—well suited to both everyday living and entertaining. The home’s two bedrooms offer privacy and flexibility, complemented by two full bathrooms. A private outdoor terrace creates a rare extension of the living space and a quiet setting for dining, relaxing or entertaining outdoors. Additional comforts include central air conditioning and an in-unit washer and dryer. Pets are permitted. Set within a boutique condominium, Residence 3 offers a discreet residential experience that stands apart from larger Manhattan buildings. With fewer neighbors and full-floor proportions, the home provides an unusual sense of privacy in one of downtown’s most connected locations. From West 20th Street, Fifth Avenue, Madison Square Park, Union Square, Chelsea and NoMad are all within easy reach, placing celebrated restaurants, shopping, design, culture and transportation just outside the door. A character-rich Flatiron loft with private outdoor space, modern comforts and the intimacy of boutique condominium living.

Features & Amenities

Interior Features

In Unit

Building Information

Building Data View Compliance & Permits
Total Units 4
Stories 4
Structure House,MixedUse,Townhouse

Financial Details

Common Charges $750/mo
RE Taxes $25,008/yr ($2,084/mo)

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

116

Median Asking Price

$2.77M

Median $/Sqft

$1,917

Avg Days on Market

N/A

New This Week

7

Price Reduced

25%

Sold (30 Days)

17

Median Sale Price

$1.95M

Live data from RLS at REBNY • Updated 10/2/26, 7:13 PM EST

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Location

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35 W 20th Street #3, Flatiron, New York County • Near 5th Avenue & 6th Avenue

Building Information

Official NYC property records for this building

1949
Year Built
77 years old
3
Floors
60
Residential Units
R5
Zoning District
Walk-Up Apartments

Tax & Assessment

Assessed Value: $2,082,150
Land Value: $537,300
Exemptions: $0

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

Lot Area: 39,790 SF
Building Area: 45,117 SF
Built FAR: 1.13
Allowed FAR: 1.5

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 $750 per month. Confirm the exact amount with Milton Coste before making an offer.

The current listed annual property tax is $25,008, or roughly $2,084 per month. Verify the current assessment with your attorney before closing.

This property has 2 bedrooms and 2 full bathrooms.

The listed interior living area is 1,325 square feet. Verify dimensions independently during due diligence.

According to MLS records, the building was constructed in 1858, making it approximately 168 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. Contact Milton Coste for weight limits or breed restrictions.

At the current list price of $3,400,000 for 1,325 sq ft, the asking price per square foot is approximately $2,566. 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: RLS20118982
First Listed: 10/2/2026
On Market: 10/2/2026
Price Changed: 10/2/2026
Contract Date: 10/2/2026

Listing Courtesy of Keller Williams NYC - Daisy Delamata

Listing Contact: (212) 837-2700

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 10/2/2026 at 11:13 PM UTC

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Milton Coste - NYC Real Estate Broker

Milton Coste

Licensed Real Estate Associate Broker

Keller Williams NYC

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Sale history, taxes, violations and comps for this unit

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Flatiron Market Update

17 sales last 30 days · $2.77M median · 6.8 months supply

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New listings in this neighborhood

Quick Facts

Status Active Type Condo Neighborhood Flatiron Borough Manhattan
County New York
Year Built 1858
First Listed 10/2/2026
Living Area 1,325 sqft
Common Charges $750/mo
Annual Tax $25,008

Monthly Costs Estimate

Down Payment 20%

$680,000

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 $750
Est. Taxes $2,084
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 $3M to $4,999,999 at 1.50%, applied to the whole purchase price. It is due in cash at closing and cannot be financed.

Estimated mansion tax at asking

$51,000

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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