Milton Coste

Licensed Real Estate Associate Broker

(917) 416-7433

SOLD FOR $725,000

Listed at $775,000 · Sold 6.5% below asking · Closed June 5, 2019

259 21ST Street #BAA
Closed For Sale Condo

$775,000

$705 per sq ft

259 21ST Street #BAA

Park Slope, Brooklyn

St. John's Condominium

MLS® #RLS10527891

RLS at REBNY

Listing by The Corcoran Group

1

Bedroom

1

Bath

1,100

Sq. Ft.

2006

Year Built

Quick Summary

Bedrooms 1
Bathrooms 1
Living Area 1,100 sq ft
Year Built 2006
Ownership Condo
HOA/Common Charges $295/mo
Property Taxes $2,844/yr
Neighborhood Park Slope
Floor 1 of 5

Property Highlights

  • Outdoor Space: Building Terrace, Terrace
  • Climate Control: Window Units

Property Details

Type Condo
Ownership Condominium
Total Rooms 3
Baths 1 Full
Floor 1 of 5
Cooling Window Units
Pets Yes
Cross Street 5th Avenue & 6th Avenue
Year Built 2006
Living Area 1,100 sq ft

Listing History

Event Date Price Change
Listed Sep 27, 2018 $799,000 -
Currently Apr 27, 2026 $775,000 -3.0%

Description

Enter this modern 1,100 square foot loft apartment through your very own private entrance or use the main entrance to the coveted Saint Johns Condominium. Previously used as a one-bedroom with home office (an additional bedroom can be added, please see alternate floor plan). Currently used as a large loft style studio taking advantage of the dramatic proportions which include 10'5"ceilings and enormous windows bringing in sunlight, including 159 square feet of private outdoor space. Upon entering the front door of the unit you are greeted by a lovely foyer (can be converted into office space) with generous sized closets and plenty of storage space above. The kitchen features granite counters, stainless steel appliances including a dishwasher. There is a large walk in closet behind the kitchen that also houses the w/d. Hardwood floors throughout. This home offers a wealth of layout possibilities--one can easily convert it back to the previous floor plan, create a custom layout, or enjoy the current, open layout. Incredibly low monthly costs for an apartment of this size and layout options.Former St Johns School was built in 1901 and converted to loft condos in 2004. pet-friendly building with a live-in super and features an elevator-accessed 5,000 square foot roof deck. From this vantage point you can take in some of the most stunning harbor and city views that Brooklyn has to offer. Situated on a very quiet and friendly tree-lined block with easy street parking and close subway access to the R, F, and G trains all within walking distance. Enjoy some of Brooklyn's finest food and drink, including Greenwood Park, Korzo and Giuseppina's Brick Oven Pizza. You will enjoy walking through Prospect Park, taking the trolley tour through Green-Wood Cemetery and the recently renovated Slope Park playground just blocks away. Assessment of $68.67.Tax abatement ends 2019.

Features & Amenities

Interior Features

Building Washer Dryer Install Allowed Common Area

Exterior Features

Building Roof Deck Building Terrace Terrace

Building Information

Financial Details

Common Charges $295/mo
RE Taxes $2,844/yr ($237/mo)
Original Price $799,000
Sale Price $725,000

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

111

Median Asking Price

$1.71M

Median $/Sqft

$1,376

Avg Days on Market

N/A

New This Week

14

Price Reduced

17%

Sold (30 Days)

21

Median Sale Price

$1.67M

Live data from RLS at REBNY • Updated 4/27/26, 4:32 PM EST

Similar Listings in Park Slope

View All

Location

Loading map...

259 21ST Street #BAA, Park Slope, Kings County • Near 5th Avenue & 6th Avenue

Floor Plans

Floor Plan
Floor Plan
Floor Plan

Building Information

Official NYC property records for this building

2006
Year Built
20 years old
5
Floors
37
Residential Units
R6B
Zoning District
Condominiums

Tax & Assessment

Assessed Value: $5,609,575
Land Value: $402,304
Exemptions: $148,372

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

Lot Area: 17,883 SF
Building Area: 50,354 SF
Built FAR: 2.82
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 common charges are $295 per month. Confirm the exact amount with the listing broker before making an offer.

The current listed annual property tax is $2,844, or roughly $237 per month. Verify the current assessment with your attorney before closing.

This property has 1 bedroom and 1 full bathroom.

The listed interior living area is 1,100 square feet. Verify dimensions independently during due diligence.

According to MLS records, the building was constructed in 2006, making it approximately 20 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 $775,000 for 1,100 sq ft, the asking price per square foot is approximately $705. 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: RLS10527891
First Listed: 9/27/2018
Closed: 6/5/2019
Contract Date: 9/27/2018

Listing Courtesy of The Corcoran Group - Barbara Katsnelson

Listing Contact: (718) 541-8478

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 4/27/2026 at 8:32 PM UTC

Buying a Condo? Start Here

Co-op vs. Condo: Which Is Right for You?

Ownership structure, board approval, financing: the full comparison.

Read article

Condo Due Diligence Checklist

What to review before signing: financials, reserve fund, offering plan.

Read article

How to Read a Condo Offering Plan

Decode the offering plan before you commit to any new development.

Read article

NYC Real Estate Market Report 2026

Data-driven analysis of prices, inventory, and trends across NYC.

Read article

Interested in this property?

Get a response within 2 hours

Your info is secure and never shared.

View Active Listings Call Milton