For Sale · Listing by Corcoran Group
346 Prospect Avenue #1
Park Slope, Brooklyn
$3,995,000
$3,995,000
346 Prospect Avenue #1
MLS® #RLS20114610
Listing by Corcoran Group
Open House Scheduled
Sunday, September 13 • 3:00 PM – 4:30 PM
REBNY 2025: signed Buyer Representation Agreement required before any showing.
- 4
- Bedrooms
- 4.5
- Baths
- N/A
- Sq. Ft.
- 1999
- Year Built
Quick Summary
Property Highlights
- Views: City
- Climate Control: Central Air
Property Details
Listing History
| Event | Date | Price | Change |
|---|---|---|---|
| Listed | Sep 11, 2026 | $3,995,000 | - |
| Currently | Sep 11, 2026 | $3,995,000 | - |
Description
Meticulously Renovated 4-Bedroom Townhouse with Exceptional Design, Private Outdoor Space & Roof Deck Experience modern Brooklyn living at its finest in this meticulously renovated four-bedroom, five-and-a-half-bath townhouse at 346 Prospect Avenue. Thoughtfully reimagined with impeccable craftsmanship and premium finishes throughout, this extraordinary residence offers expansive living spaces, abundant natural light, and seamless indoor-outdoor living. The heart of the home is a spectacular chef's kitchen featuring custom cabinetry, premium integrated wolf appliances, a sub zero fridge, oversized marble waterfall island, generous counter space, and abundant storage. The open-concept living and dining area is flooded with natural light through oversized windows and opens directly onto a beautifully landscaped backyard, creating the perfect setting for both entertaining and everyday living. Each of the four spacious bedrooms offers generous proportions, excellent closet space, and beautifully appointed marble bathrooms with designer fixtures and spa-inspired finishes. The luxurious primary suite is a true retreat, complete with a walk-in closet, a stunning marble ensuite bath with a double vanity, and access to a private deck. Additional highlights include a finished recreation level, multiple private outdoor spaces including a landscaped garden, balconies, and an expansive roof deck ideal for relaxing or entertaining. Wide-plank hardwood floors, soaring ceilings, oversized windows, central HVAC, custom millwork, and exceptional attention to detail complete this remarkable home. Ideally situated in South Slope, just moments from Prospect Park, neighborhood cafés, acclaimed restaurants, boutique shopping, and multiple subway lines, 346 Prospect Avenue offers a rare opportunity to own a beautifully crafted townhouse that perfectly balances timeless design, luxury finishes, and modern functionality.
Features & Amenities
Interior Features
Exterior Features
Building Information
Financial Details
About Park Slope
View All Park Slope ListingsPark 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 NeighborhoodActive Listings
67
Median Asking Price
$1.80M
Median $/Sqft
$1,405
Avg Days on Market
N/A
New This Week
26
Price Reduced
15%
Sold (30 Days)
44
Median Sale Price
$1.70M
Live data from RLS at REBNY • Updated 9/11/26, 6:30 PM EST
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Location
346 Prospect Avenue #1, Park Slope, 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 $0 per month. Confirm the exact amount with Milton Coste before making an offer.
The current listed annual property tax is $13,704, or roughly $1,142 per month. Verify the current assessment with your attorney before closing.
This property has 4 bedrooms and 4 full bathrooms and 1 half bathroom.
According to MLS records, the building was constructed in 1999, making it approximately 27 years old.
This listing is None
Pet policy requires confirmation with Milton Coste. Additional notes: UnitNo
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) 416-7433Listing Courtesy of Corcoran Group - Adelinda Leon
Listing Contact: (908) 578-0667
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 9/11/2026 at 10:30 PM UTC
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Quick Facts
Monthly Costs Estimate
$799,000
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
$59,925
Estimate based on the asking price. Confirm your own obligation with your real estate attorney.
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