Milton Coste

Licensed Real Estate Associate Broker

(917) 416-7433
446 15th Street #4R

For Sale · Listing by Corcoran Group

446 15th Street #4R

Park Slope, Brooklyn

$1,250,000

Interested in this property?
Active For Sale Co-op

$1,250,000

446 15th Street #4R

Park Slope, Brooklyn

MLS® #RLS20113238

RLS at REBNY

Listing by Corcoran Group

2
Bedrooms
1
Bath
N/A
Sq. Ft.
1920
Year Built

Quick Summary

Bedrooms 2
Bathrooms 1
Lot Size 2,850 sq ft
Year Built 1920
Ownership Co-op
Maintenance $993.62/mo
Neighborhood Park Slope
Floor 4 of 4

Property Highlights

  • Exposure: North,South facing
  • Outdoor Space: Rooftop
  • Style: WalkUp architecture

Property Details

Type Co-op
Ownership Stock Cooperative
Total Rooms 5
Baths 1 Full
Floor 4 of 4
Exposure North,South
Pets Yes
Year Built 1920
Architectural Style WalkUp
Flooring Hardwood
Furnished Unfurnished
Lot Size 2,850 sq ft
Block/Lot 01105/0022

Listing History

Event Date Price Change
Listed Sep 8, 2026 $1,250,000 -
Currently Sep 9, 2026 $1,250,000 -

Description

New in Park Slope! In a well maintained 8 unit limestone, this charming fourth floor two-bed, one-bath cooperative has a separate home office and offers a flexible layout, beautiful original detail, and a private roof deck just one block from Prospect Park. With windows in every room, the spacious, versatile floor plan suits a variety of living arrangements. Original ornate woodwork adds warmth throughout, and the primary bedroom features beautiful Venetian plaster. A clawfoot tub brings vintage charm to the tiled bath. A flight up, a private roof deck offers views of the Manhattan skyline and even a peek at the Statue of Liberty. Steps from the F/G at 15th Street, with the restaurants, cafés, and shops of 7th Avenue and Prospect Park West just moments away. Pet-friendly. Private storage and bike storage.

Features & Amenities

Interior Features

Built In Features Building Washer Dryer Install Allowed Flooring: Hardwood

Exterior Features

Private Outdoor Space Over60 Sqft Rooftop

Appliances

Dryer Washer

Building Information

Building Data View Compliance & Permits
Total Units 8
Stories 4
Style WalkUp

Financial Details

Maintenance $993.62/mo

Park Slope is a well-known Brooklyn neighborhood, recognized for its tree-lined streets and preserved brownstones. Bordering the western edge of Prospect Park, the neighborhood offers convenient access to green space. The real estate market features a mix of historic townhouses, cooperatives, and modern condominiums, within walking distance of the park.

Park Slope Live Market Data

View Neighborhood

Active Listings

58

Median Asking Price

$1.81M

Median $/Sqft

$1,419

Avg Days on Market

N/A

New This Week

19

Price Reduced

16%

Sold (30 Days)

39

Median Sale Price

$1.70M

Live data from RLS at REBNY • Updated 9/9/26, 5:21 PM EST

Location

Loading map...

446 15th Street #4R, Park Slope, Kings County

Floor Plans

Floor Plan 1

Building Information

Official NYC property records for this building

1906
Year Built
120 years old
4
Floors
8
Residential Units
R6B
Zoning District
Walk-Up Apartments Historic District: Park Slope Historic District Extension

Tax & Assessment

Assessed Value: $1,178,100
Land Value: $34,650
Exemptions: $0

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

Lot Area: 2,850 SF
Building Area: 8,484 SF
Built FAR: 2.98
Allowed FAR: 2

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 $993.62 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 1 full bathroom.

According to MLS records, the building was constructed in 1920, making it approximately 106 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.

Pet policy requires confirmation with Milton Coste.

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: RLS20113238
First Listed: 9/8/2026
On Market: 9/8/2026
Price Changed: 9/8/2026
Contract Date: 6/15/2026

Listing Courtesy of Corcoran Group - Lesley S Semmelhack

Listing Contact: (917) 586-0621

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 9/9/2026 at 9:21 PM UTC

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Park Slope Market Update

39 sales last 30 days · $1.81M median · 1.5 months supply

Read Full Report

New listings in this neighborhood

Quick Facts

Status Active Type Co-op Neighborhood Park Slope Borough Brooklyn
County Kings
Floor 4 of 4
Year Built 1920
First Listed 9/8/2026
Style WalkUp
Maintenance $993.62/mo

Monthly Costs Estimate

Down Payment 20%

$250,000

Interest Rate Loading...

Source: Freddie Mac PMMS

Loan Term 30 years

Est. Monthly Payment

$0

Principal & Interest $0
PMI (under 20% down) $0
Maintenance $993.62
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

$12,500

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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