Milton Coste

Licensed Real Estate Associate Broker

(917) 416-7433
109 W 70th Street #1F & 2F

For Sale · Listing by Compass

109 W 70th Street #1F & 2F

Upper West Side, Manhattan

$1,400,000

Interested in this property?
Active For Sale • Co-op

$1,400,000

109 W 70th Street #1F & 2F

Upper West Side, Manhattan

MLS® #RLS20119973

RLS at REBNY

Listing by Compass

Open House Scheduled

Sunday, October 25 • 11:00 AM – 12:00 PM

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

2
Bedrooms
2.5
Baths
N/A
Sq. Ft.
1900
Year Built

Quick Summary

Bedrooms 2
Bathrooms 3 full, 1 half
Lot Size 2,008.4 sq ft
Year Built 1900
Ownership Co-op
Maintenance $2,354/mo
Neighborhood Upper West Side
Floor 1 of 4

Property Highlights

  • Views: City
  • Exposure: South facing
  • Fireplace: 1 fireplace

Property Details

Type Co-op
Ownership Stock Cooperative
Total Rooms 4
Baths 2 Full, 1 Half
Floor 1 of 4
View City
Exposure South
Cooling Wall Units
Pets Yes, CatsOk, DogsOk
Year Built 1900
Structure Type Duplex
Flooring Hardwood
Furnished Unfurnished
Lot Size 2,008.4 sq ft
Block/Lot 01142/0029

Listing History

Event Date Price Change
Listed Oct 22, 2026 $1,400,000 -
Price Reduced Oct 22, 2026 $1,575,000 +12.5%

Description

Set on a picturesque, tree-lined Upper West Side street, Residence 1F/2F at 109 West 70th is a beautifully renovated duplex that pairs dramatic architectural character with classic prewar warmth. Soaring ceilings, oversized south-facing windows, exposed brick walls, and beautifully engineered floating staircases give the home a distinctive sense of scale and personality. Natural light pours into the main living space, creating an airy yet inviting setting for both everyday living and entertaining. At the heart of the home is a renovated open-concept chef’s kitchen with marble countertops, custom cabinetry, Wolf gas range, Sub-Zero wine fridge and built-in Liebherr refrigerator. The kitchen flows seamlessly into the living and dining areas, including a charming built-in dining nook that adds both function and character. The duplex layout creates a natural separation between living and private spaces while maintaining a cohesive flow throughout. Each level is served by its own bathroom, offering added comfort and flexibility. Located within The Brownstones, a boutique cooperative just off Columbus Avenue and a block from Central Park, residents enjoy easy access to Lincoln Center, the American Museum of Natural History, acclaimed restaurants, neighborhood cafés, shopping, and multiple subway lines. A rare Upper West Side duplex where prewar character, architectural drama, and a considered modern renovation come together in one distinctive home.

Features & Amenities

Interior Features

Entrance Foyer High Ceilings His And Hers Closets Recessed Lighting Common On Floor Common Area In Unit Flooring: Hardwood Double Pane Windows Fireplace (1)

Appliances

Dishwasher Freezer Gas Cooktop Gas Oven Refrigerator Range Hood Stainless Steel Appliances

Building Information

Building Data View Compliance & Permits
Total Units 10
Stories 4
Structure Duplex

Financial Details

Maintenance $2,354/mo
Previous Price $1,575,000

The Upper West Side (UWS) is celebrated for its cultural richness and architectural grandeur. Set between Central Park and Riverside Park, the neighborhood provides direct access to green space within the urban grid. Residents enjoy easy access to Lincoln Center, the American Museum of Natural History, and a popular culinary scene. The real estate landscape is famous for its historic brownstones and iconic 'white-glove' apartment buildings along Central Park West and Riverside Drive.

Upper West Side Live Market Data

View Neighborhood

Active Listings

557

Median Asking Price

$1.44M

Median $/Sqft

$1,563

Avg Days on Market

N/A

New This Week

28

Price Reduced

23%

Sold (30 Days)

56

Median Sale Price

$1.42M

Live data from RLS at REBNY • Updated 10/22/26, 12:41 PM EST

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Location

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109 W 70th Street #1F & 2F, Upper West Side, New York County

Floor Plans

Floor Plan 1

Building Information

Official NYC property records for this building

1925
Year Built
101 years old
2
Floors
2
Residential Units
R3-2
Zoning District
Two Family Dwellings

Tax & Assessment

Assessed Value: $80,460
Land Value: $17,580
Exemptions: $1,400

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

Lot Area: 1,950 SF
Building Area: 2,256 SF
Built FAR: 1.16
Allowed FAR: 0.75

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 monthly maintenance are $2,354 per month. Confirm the exact amount with Milton Coste before making an offer.

The current listed annual property tax is $0, or roughly $0 per month. Verify the current assessment with your attorney before closing.

This property has 2 bedrooms and 2 full bathrooms and 1 half bathroom.

According to MLS records, the building was constructed in 1900, making it approximately 126 years old.

This listing is a co-op (stock cooperative). Buyers purchase shares in a corporation rather than real property, and the board must approve all sales.

Pets are permitted at this property. Contact Milton Coste for weight limits or breed restrictions.

To schedule a private showing, contact Milton Coste at (917) 416-7433 or milton@miltoncoste.com. 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: RLS20119973
First Listed: 10/8/2026
On Market: 10/22/2026
Price Changed: 10/22/2026
Contract Date: 10/5/2026

Listing Courtesy of Compass - Kevin Lam

Listing Contact: 347-989-5267

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.

How working with a buyer's agent works: I work for you, not the seller. Before I show you anything, New York brokerage rules ask us to put that in writing: an agreement and a disclosure that say I work for you and negotiate on your behalf. The agreement is non-exclusive: you can work with other agents, it runs for a short fixed term we agree on, and you can end it with a note. You may attend open houses independently without an agreement. Read how it works

RLS at REBNY

RLS Data display by Keller Williams NYC. Data last updated on 10/22/2026 at 4:41 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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Upper West Side Market Update

56 sales last 30 days · $1.44M median · 9.9 months supply

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Quick Facts

Status Active Type Co-op Neighborhood Upper West Side Borough Manhattan
County New York
Floor 1 of 4
Year Built 1900
First Listed 10/8/2026
Maintenance $2,354/mo

Monthly Costs Estimate

Down Payment 20%

$280,000

Interest Rate Loading...

Source: Freddie Mac PMMS

Loan Term 30 years

Est. Monthly Payment

$0

Principal & Interest $0
PMI (under 20% down) $0
Maintenance $2,354
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 $1M to $1,999,999 at 1.00%, applied to the whole purchase price. It is due in cash at closing and cannot be financed.

Estimated mansion tax at asking

$14,000

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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You're contacting Milton Coste, a buyer's agent. Before any private showing, New York brokerage rules require a short non-exclusive agreement. Milton walks you through it before you sign anything. Broker commissions are not set by law and are fully negotiable. How working together works.

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