Under Contract – Backup offers may be accepted
Pending · Listing by Douglas Elliman Real Estate
684 DEAN Street #PH
Prospect Heights, Brooklyn
$3,150,000
684 DEAN Street #PH
MLS® #RLS20025845
Listing by Douglas Elliman Real Estate
- 3
- Bedrooms
- 2
- Baths
- 1,712
- Sq. Ft.
- 2025
- Year Built
Quick Summary
Property Highlights
- Views: City Lights, City, Panoramic
- Exposure: East,North,South,West facing
- Outdoor Space: Terrace, Balcony, Rooftop
Property Details
Listing History
| Event | Date | Price | Change |
|---|---|---|---|
| Listed | May 22, 2025 | $3,250,000 | - |
| Currently | Aug 26, 2026 | $3,150,000 | -3.1% |
Description
Perched atop a newly constructed boutique condo, this stunning 3-bedroom, 2-bathroom duplex penthouse redefines modern luxury living boasting over 1100 square feet of outdoor space. Enter directly into either floor via your private keyed elevator, and be greeted by soaring double-height ceilings and massive windows that flood the space with natural light from all four exposures-South, North, East, and West. The open-concept living and dining area flows into two lower-level bedrooms, creating an easy, functional layout. Upstairs is the primary suite, compete with a spa-like bathroom, massive walk-in closet, and private terrace off the mezzanine. Last but not least, a sprawling private roof deck crowns the home-ideal for entertaining or soaking in panoramic views. A rare offering with over 1100 square feet of outdoor space on every level, in a premier new development-this penthouse is a true showstopper. 684 Dean is a boutique, 5 unit new development in trendy Prospect Heights, with easy access to the Farmer's Market at Grand Army Plaza, Prospect Park, and the Brooklyn Botanic Gardens. You're surrounded by great restaurants, bars, and shopping. The 2 & 3 trains at Grand Army Plaza and/or Eastern Pkwy-Brooklyn Museum, the Q & B at 7th Ave, and the C train at Clinton-Washington Ave provide seamless transportation to Manhattan and Brooklyn. The advertised real estate taxes are reflective of a $50K owner credit paid at closing and prorated over 5 years. Please reach out for more information. This is not an offering. The complete offering terms are in an offering plan available from the sponsor. File No.CD21-0056.
Features & Amenities
Interior Features
Exterior Features
Building Amenities
Appliances
Building Information
Financial Details
About Prospect Heights
View All Prospect Heights ListingsProspect 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 NeighborhoodActive Listings
14
Median Asking Price
$1.66M
Median $/Sqft
$1,486
Avg Days on Market
N/A
New This Week
0
Price Reduced
21%
Sold (30 Days)
7
Median Sale Price
$1.38M
Live data from RLS at REBNY • Updated 8/26/26, 7:17 PM EST
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Location
684 DEAN Street #PH, Prospect Heights, Kings County
Building Information
Official NYC property records for this building
Tax & Assessment
Note: Individual unit taxes may differ. Verify current tax bills with NYC DOF.
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
Listing Data
RLS® at REBNY (Real Estate Board of New York) via Trestle API. Updated in real-time.
Building Data
NYC PLUTO (Primary Land Use Tax Lot Output), NYC Department of City Planning. Updated quarterly.
Market Data
RLS® at REBNY (Real Estate Board of New York). Live data updated in real-time.
Map & Location
OpenStreetMap contributors via Leaflet. Geocoding via Nominatim.
All data is provided for informational purposes only and should be independently verified. See our Data Sources Policy for more information.
Frequently Asked Questions
Common questions about this property
The current listed common charges are $1,529 per month. Confirm the exact amount with Milton Coste before making an offer.
This property has 3 bedrooms and 2 full bathrooms.
The listed interior living area is 1,712 square feet. Verify dimensions independently during due diligence.
According to MLS records, the building was constructed in 2025, making it approximately 1 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 Milton Coste for weight limits or breed restrictions.
At the current list price of $3,150,000 for 1,712 sq ft, the asking price per square foot is approximately $1,840. 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 [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) 416-7433Listing Courtesy of Douglas Elliman Real Estate - Aran P Scott
Listing Contact: (646) 479-8408
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 Data display by Keller Williams NYC. Data last updated on 8/26/2026 at 11:17 PM UTC
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Prospect Heights Market Update
7 sales last 30 days · $1.66M median · 2 months supply
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Quick Facts
Monthly Costs Estimate
$630,000
Source: Freddie Mac PMMS
Est. Monthly Payment
$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 $3M to $4,999,999 at 1.50%, applied to the whole purchase price. It is due in cash at closing and cannot be financed.
Estimated mansion tax at asking
$47,250
Estimate based on the asking price. Confirm your own obligation with your real estate attorney.
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