Milton Coste

Licensed Real Estate Associate Broker

(917) 416-7433

SOLD FOR $6,300,000

· Closed January 28, 2015

21 ASTOR Place #7E
Closed For Sale Condo

$6,300,000

$1,738 per sq ft

21 ASTOR Place #7E

Park Slope, Manhattan

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MLS® #RLS10083219

RLS at REBNY

Listing by Brown Harris Stevens Residential Sales LLC

3

Bedrooms

4

Baths

3,624

Sq. Ft.

1890

Year Built

Quick Summary

Bedrooms 3
Bathrooms 4
Living Area 3,624 sq ft
Year Built 1890
Ownership Condo
HOA/Common Charges $2,582/mo
Property Taxes $18,432/yr
Neighborhood Park Slope

Property Highlights

  • Exposure: East,South facing
  • Style: Prewar architecture
  • Character: Pre-war building (1890)

Property Details

Type Condo
Ownership Condominium
Total Rooms 6
Baths null Full
Exposure East,South
Pets Yes
Year Built 1890
Living Area 3,624 sq ft
Architectural Style Prewar
Parcel # 0545-1337

Listing History

Event Date Price Change
Listed Jan 28, 2015 $6,500,000 -
Currently May 3, 2026 $6,300,000 -3.1%

Description

This quintessential pre-war condominium loft will have you feeling like a rock star even if you can't keep a beat. 3,624 square feet have been renovated with a modern art aesthetic using top-of-the-line appliances and green/eco-friendly materials throughout.

The main floor is an open layout with 12' 8" ceilings and oversized windows looking South and East onto Astor Place. Each set of windows has electronically controlled sun diffusing blinds that protect paintings and fine art from sun damage. An additional set of electronically controlled blackout shades are also installed. The stainless steel chefs kitchen features a Sub Zero refrigerator, two Kuppersbusch ovens, Bosch five burner stove, two garbage disposals, Miele Incognito dishwasher and huge center island with Boffe storage compartments. A large dining area lies steps from the kitchen and the living room has 5.1 surround sound installed.

A custom milled floating staircase leads you up to the bedroom floor which has 10' 7" ceilings throughout. The 600 square foot (26' by 23') master bedroom boasts a double exposure view of Astor Place and has phenomenal closet space leading to the five piece master bath. The second and third bedrooms both have gracious proportions and feature bathrooms en suite. All the bathrooms feature a bidet, radiant heat flooring and full length fogless mirrors.

This residence comes with a washer/dryer on the second floor, a powder room on the main floor and a 12x6 storage unit in the basement. There are several storage closets in the apartment with full length ceiling heights. The building features an on site superintendent, health center and 24 hour concierge. Please call to schedule a private viewing of this stunning residence.

Building Information

Financial Details

Common Charges $2,582/mo
RE Taxes $18,432/yr ($1,536/mo)
Original Price $6,500,000

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

108

Median Asking Price

$1.62M

Median $/Sqft

$1,376

Avg Days on Market

N/A

New This Week

14

Price Reduced

17%

Sold (30 Days)

23

Median Sale Price

$1.61M

Live data from RLS at REBNY • Updated 5/3/26, 9:06 AM EST

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Location

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21 ASTOR Place #7E, Park Slope, New York County

Floor Plans

Floor Plan 1

Building Information

Official NYC property records for this building

1892
Year Built
134 years old
11
Floors
52
Residential Units
C6-2
Zoning District
Condominiums Historic District: NoHo Historic District

Tax & Assessment

Assessed Value: $17,286,297
Land Value: $1,556,997
Exemptions: $2,290

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

Lot Area: 8,023 SF
Building Area: 107,106 SF
Built FAR: 13.35
Allowed FAR: 6.02

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 $2,582 per month. Confirm the exact amount with the listing broker before making an offer.

The current listed annual property tax is $18,432, or roughly $1,536 per month. Verify the current assessment with your attorney before closing.

This property has 3 bedrooms and 4 full bathrooms.

The listed interior living area is 3,624 square feet. Verify dimensions independently during due diligence.

According to MLS records, the building was constructed in 1890, making it approximately 136 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 the listing broker for weight limits or breed restrictions.

At the current list price of $6,300,000 for 3,624 sq ft, the asking price per square foot is approximately $1,738. 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 mcoste@kwnyc.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: RLS10083219
First Listed: 1/28/2015
Closed: 1/28/2015
Contract Date: 11/26/2007

Listing Courtesy of Brown Harris Stevens Residential Sales LLC - Doug Russell

Listing Contact: (212) 906-9247

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 5/3/2026 at 1:06 PM UTC

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