Milton Coste

Licensed Real Estate Associate Broker

(917) 416-7433
346 Prospect Avenue #1

For Sale · Listing by Corcoran Group

346 Prospect Avenue #1

Park Slope, Brooklyn

$3,995,000

Interested in this property?

$3,995,000

346 Prospect Avenue #1

Park Slope, Brooklyn

MLS® #RLS20114610

RLS at REBNY

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

Bedrooms 4
Bathrooms 5 full, 1 half
Lot Size 1,503 sq ft
Year Built 1999
Ownership None
Property Taxes $13,704/yr
Neighborhood Park Slope
Floor 1 of 3

Property Highlights

  • Views: City
  • Climate Control: Central Air

Property Details

Type Single Family Residence
Ownership None
Total Rooms 8
Baths 4 Full, 1 Half
Floor 1 of 3
View City
Cooling Central Air
Pets Yes
Year Built 1999
Structure Type Townhouse
Furnished Unfurnished
Lot Size 1,503 sq ft
Block/Lot 00868/0024

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

Washer Hookup In Unit See Remarks

Exterior Features

Private Outdoor Space Over60 Sqft

Building Information

Building Data View Compliance & Permits
Total Units 3
Stories 3
Structure Townhouse

Financial Details

RE Taxes $13,704/yr ($1,142/mo)

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

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

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346 Prospect Avenue #1, Park Slope, Kings County

Building Information

Official NYC property records for this building

1999
Year Built
27 years old
3
Floors
3
Residential Units
R6B
Zoning District
Walk-Up Apartments

Tax & Assessment

Assessed Value: $168,900
Land Value: $21,360
Exemptions: $0

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

Lot Area: 1,503 SF
Building Area: 2,700 SF
Built FAR: 1.8
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 $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) 416-7433
MLS® ID: RLS20114610
First Listed: 9/11/2026
On Market: 9/11/2026
Price Changed: 9/11/2026
Contract Date: 9/1/2026

Listing 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 at REBNY

RLS Data display by Keller Williams NYC. Data last updated on 9/11/2026 at 10:30 PM UTC

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Park Slope Market Update

44 sales last 30 days · $1.80M median · 1.5 months supply

Read Full Report

New listings in this neighborhood

Quick Facts

Monthly Costs Estimate

Down Payment 20%

$799,000

Interest Rate Loading...

Source: Freddie Mac PMMS

Loan Term 30 years

Est. Monthly Payment

$0

Principal & Interest $0
PMI (under 20% down) $0
Est. Taxes $1,142
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 $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

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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