For Sale · Listing by Compass
420 6th Avenue #12
Park Slope, Brooklyn
$975,000
420 6th Avenue #12
MLS® #RLS20113139
Listing by Compass
Open House Scheduled
Sunday, September 13 • 11:00 AM – 1:00 PM
REBNY 2025: signed Buyer Representation Agreement required before any showing.
- 2
- Bedrooms
- 1
- Bath
- N/A
- Sq. Ft.
- 1900
- Year Built
Quick Summary
Property Highlights
- Style: WalkUp architecture
- Character: Pre-war building (1900)
Property Details
Listing History
| Event | Date | Price | Change |
|---|---|---|---|
| Listed | Sep 8, 2026 | $975,000 | - |
| Currently | Sep 8, 2026 | $975,000 | - |
Description
Bespoke, bright, and quintessentially Brooklyn. A private entrance, soaring ceilings, and a slice of Park Slope history give this one-of-a-kind maisonette a character entirely its own. Originally home to the building’s neighborhood bodega, this distinctive two-bedroom has been transformed into a charming residence while retaining the qualities that make it so unique: its own street-level entrance, dramatic 11.5 foot lofted ceilings, oversized windows and an abundance of natural light from two exposures. Tucked behind a gated patio on the corner of 8th street and 6th avenue, this home feels more like a boutique house than an apartment. The airy living and dining space is framed by custom floor-to-ceiling built-ins that add both architectural character and an impressive amount of storage. The adjacent open-concept kitchen is thoughtfully designed with full-size stainless steel appliances including a new Frigidaire induction range, abundant cabinetry and counter space, along with a breakfast bar that connects naturally to the living space. Both bedrooms are well proportioned, filled with light, and feature floor-to-ceiling double closets with upper cabinet storage. The primary offers two oversized windows and room for a king-sized bed with additional furniture, while the second bedroom features extensive custom built-in cabinetry and shelving–equally suited to a bedroom, nursery, or home office. A crisp white bathroom is finished with classic subway tile and a marble-topped vanity. Just outside the front door, the building's shared patio feels like a natural extension of the home and is used almost exclusively by this residence—an especially rare amenity in the heart of Park Slope. And then there's the roof. The building's expansive common roof deck rises above the surrounding treetops, with open sky and sweeping views across Brooklyn toward Downtown Manhattan—a spectacular setting for morning coffee, sunset drinks or an evening with friends. Residents enjoy free laundry in the cellar and individual private storage rooms; #12's dedicated storage space measures nearly 50 square feet. There is additional bike storage and stroller storage, both free of charge. The co-op also permits owners to install an in-unit washer/dryer. All of this in a setting that feels distinctly Park Slope, moments from Prospect Park, neighborhood cafés and restaurants, groceries and shopping, the Brooklyn Public Library, YMCA, and convenient access to F, G, & R trains and bus transportation. Cats welcome. Dogs considered on a case-by-case basis.
Features & Amenities
Interior Features
Exterior Features
Building Amenities
Appliances
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
51
Median Asking Price
$1.77M
Median $/Sqft
$1,405
Avg Days on Market
N/A
New This Week
13
Price Reduced
16%
Sold (30 Days)
44
Median Sale Price
$1.70M
Live data from RLS at REBNY • Updated 9/8/26, 5:23 PM EST
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Location
420 6th Avenue #12, Park Slope, Kings County
Floor Plans
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 monthly maintenance are $1,123 per month. Confirm the exact amount with Milton Coste before making an offer.
The current listed annual property tax is $0, or roughly $0 per month. Verify the current assessment with your attorney before closing.
This property has 2 bedrooms and 1 full bathroom.
According to MLS records, the building was constructed in 1900, making it approximately 126 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: Dogs considered on a case-by-case basis,Building Pets Allowed Comments:Cats OK. Dogs upon approval. Contact Milton Coste for weight limits or breed restrictions.
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 Compass - Piers Portfolio
Listing Contact: (201) 739-6344
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 9/8/2026 at 9:23 PM UTC
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Quick Facts
Monthly Costs Estimate
$195,000
Source: Freddie Mac PMMS
Est. Monthly Payment
$0
Estimates only. Consult a lender for exact figures.
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