421 4TH Street #1
MLS® #RLS20037833
Listing by Coldwell Banker Warburg
3
Bedrooms
2
Baths
1,575
Sq. Ft.
1899
Year Built
Quick Summary
Property Highlights
- Views: Other
- Outdoor Space: Patio
- Style: WalkUp architecture
Property Details
Description
Classic Park Slope Duplex with a Private Backyard
3 beds 2 full baths Private Garden Central A/C
Tucked into a quintessential tree-lined block this charming 3 bedroom 2 bath duplex sits within a classic 3 unit Park Slope brownstone and offers the rare gift of a lush, private garden.
Enter on the parlor-level to find high ceilings, a bay window and lovingly preserved original details like hardwood floors, rich wood trim and period charm. The open layout allows for comfortable entertaining and everyday living, with a kitchen that blends seamlessly into the main space-ready to use as-is or customize to your taste.
Two bedrooms are located on this level, including a large rear bedroom with French doors that open onto a private deck and the garden which is fully irrigated and thoughtfully landscaped with established plantings. Whether you're grilling, lounging in the sun, or unwinding with a book this garden retreat offers rare tranquility in the heart of Park Slope. The second bedroom features a built-in Murphy bed, offering flexibility for guests, a home office, or nursery. A full bath with shower completes the floor.
Downstairs, the lower level serves as a tranquil primary suite, complete with a full bath, spacious dressing room, a bonus space that can flex as a home office, gym or cozy den, and a separate laundry area.
Additional features include central air conditioning, washer/dryer in lower level, and unbeatable access to Prospect Park and the shops and restaurants along 5th and 7th Avenues.
- Central Air Conditioning
- Washer/ Dryer
- 3 Unit Cooperative Brownstone
- Private garden with deck, irrigation system & lush greenery
- Located just moments from Prospect Park and the best of 5th and 7th Avenues
- Pet policy - Small Dog or a Cat
- No Smoking Building
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
81
Median Asking Price
$1.75M
Median $/Sqft
$1,440
Avg Days on Market
N/A
New This Week
12
Price Reduced
12%
Sold (30 Days)
22
Median Sale Price
$1.67M
Live data from RLS at REBNY • Updated 3/23/26, 12:45 PM EST
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Location
421 4TH Street #1, Park Slope, Kings County
Floor Plans
Listing Data
RLS® at REBNY (Real Estate Board of New York) via Trestle API. Updated in real-time.
Market Data
RLS® at REBNY (Real Estate Board of New York). Live data updated in real-time.
Map & Location
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Listing Courtesy of Coldwell Banker Warburg - Susan Siegelaub Katz
Listing Contact: (203) 246-7785
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.
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RLS Data display by Keller Williams NYC. Data last updated on 3/23/2026 at 4:45 PM UTC