Milton Coste

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(917) 416-7433

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521 DEAN Street #9

Pending · Listing by Douglas Elliman Real Estate

521 DEAN Street #9

Prospect Heights, Brooklyn

$1,199,000

Pending For Sale • Co-op

$1,199,000

521 DEAN Street #9

Prospect Heights, Brooklyn

MLS® #RLS20083462

RLS at REBNY

Listing by Douglas Elliman Real Estate

2
Bedrooms
2
Baths
N/A
Sq. Ft.
1930
Year Built

Quick Summary

Bedrooms 2
Bathrooms 2
Year Built 1930
Ownership Co-op
Maintenance $1,198/mo
Neighborhood Prospect Heights
Floor 4 of 4

Property Highlights

  • Views: Park Greenbelt
  • Fireplace: 1 fireplace
  • Style: WalkUp architecture

Property Details

Type Co-op
Ownership Stock Cooperative
Total Rooms 5
Baths 2 Full
Floor 4 of 4
View Park Greenbelt
Pets Yes
Year Built 1930
Architectural Style WalkUp
Basement Other
Block/Lot 01128/0076

Listing History

Event Date Price Change
Listed Apr 13, 2026 $1,575,000 -
Price Reduced Jul 6, 2026 $1,299,000 -17.5%
Currently Sep 29, 2026 $1,199,000 -7.7%

Description

PRICE Reduction! Exceptional Value-Add Opportunity to transform this apartment into your dream home! Welcome to 521 Dean St, apt 9, an architectural Loft-like duplex 2bed/2 bath (Converted to a 3 bed) with Private Roof deck, nestled in the heart of Prospect Heights! Low Maintenance! Not your typical cookie-cutter apartment! This top (4th floor) walkup gem offers an exceptional living experience in a Brooklyn brownstone boutique coop and oozes with Character! While your future home needs TLC, it is beautifully kept and offers five spacious rooms, including two bedrooms and two bathrooms, PLUS an additional guest room/den/home office showcasing the timeless elegance and charm of a bygone era. It also boasts great STORAGE space, high ceilings and expansive living spaces Upon entering, you're greeted by an inviting open walk-through layout with generous space for relaxation and entertaining. The main level boasts gleaming hardwood floors, a cozy wood-burning fireplace, and exposed bricks, adding both warmth and character to the expansive living area. The thoughtfully designed kitchen features stainless steel appliances including a dish-washer, sleek cabinetry, durable countertops, and is complemented by an in-unit Washer/Dryer, making everyday chores a breeze. Upstairs, the tranquil primary suite offers peaceful treetop views, ample floor-to-ceiling closets, and a private en-suite bath, providing a sanctuary within this bustling city. The second bedroom, bathed in natural light, offers built-in storage and spaciousness that allows for both privacy and versatility. This flexible space opens to your own private rooftop oasis. Your furry companions are welcome here (with board approval) This exquisite building's location is the cherry on top - conveniently situated on a tree-lined block, you'll have easy access to the bustling energy of the Barclays Center, the cultural offerings of the Brooklyn Academy of Music, Dean Playground, Downtown Brooklyn and the lush beauty of Prospect Park. With a variety of subway lines (2/3, B/D, N/Q/R, 4/5) and the LIRR nearby, the rest of New York City is at your fingertips for work or play. Imagine enjoying weekend shopping adventures. The diverse dining experiences, such as acclaimed dining like Olmsted, Sofreh, and Radio Bakery along the lively Vanderbilt Avenue restaurants are just moments from your doorstep. Don't miss out on this exceptional opportunity to own a piece of Prospect Heights charm. Schedule your showing today and step into a home that blends classic design with all modern conveniences - it's a delightful discovery waiting just for you!

Features & Amenities

Interior Features

Building None In Unit Fireplace (1)

Exterior Features

Private Outdoor Space Over60 Sqft

Appliances

Washer Dryer Allowed

Building Information

Building Data View Compliance & Permits
Total Units 10
Stories 4
Style WalkUp

Financial Details

Maintenance $1,198/mo
Original Price $1,575,000
Previous Price $1,299,000

Prospect Heights is a compact Brooklyn neighborhood anchored by the Brooklyn Public Library, Grand Army Plaza, Prospect Park, and the Brooklyn Museum. The real estate market features historic brownstones, pre-war cooperatives, and new developments like Pacific Park, with 2/3/B/Q/4 train service.

Prospect Heights Live Market Data

View Neighborhood

Active Listings

31

Median Asking Price

$1.20M

Median $/Sqft

$1,446

Avg Days on Market

N/A

New This Week

2

Price Reduced

6%

Sold (30 Days)

8

Median Sale Price

$1.23M

Live data from RLS at REBNY • Updated 9/29/26, 4:42 AM EST

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Location

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521 DEAN Street #9, Prospect Heights, Kings County

Floor Plans

Floor Plan 1
Floor Plan 2
Floor Plan 3

Building Information

Official NYC property records for this building

1930
Year Built
96 years old
10
Residential Units
R6B
Zoning District
Walk-Up Apartments

Tax & Assessment

Assessed Value: $2,067,750
Land Value: $24,300
Exemptions: $0

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

Lot Area: 3,135 SF
Building Area: 7,428 SF
Built FAR: 2.37
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 $1,198 per month. Confirm the exact amount with Milton Coste before making an offer.

This property has 2 bedrooms and 2 full bathrooms.

According to MLS records, the building was constructed in 1930, making it approximately 96 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 [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: RLS20083462
First Listed: 4/13/2026
On Market: 4/13/2026
Price Changed: 7/6/2026
Pending Since: 8/21/2026
Contract Date: 4/13/2026

Listing Courtesy of Douglas Elliman Real Estate - Patrick Ben Hayoun

Listing Contact: (917) 214-6888

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 9/29/2026 at 8:42 AM UTC

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Prospect Heights Market Update

8 sales last 30 days · $1.20M median · 3.9 months supply

Read Full Report

New listings in this neighborhood

Quick Facts

Status Pending
Type Co-op Neighborhood Prospect Heights Borough Brooklyn
County Kings
Floor 4 of 4
Year Built 1930
First Listed 4/13/2026
Style WalkUp
Maintenance $1,198/mo

Monthly Costs Estimate

Down Payment 20%

$239,800

Interest Rate Loading...

Source: Freddie Mac PMMS

Loan Term 30 years

Est. Monthly Payment

$0

Principal & Interest $0
PMI (under 20% down) $0
Maintenance $1,198
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

$11,990

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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