Milton Coste

Licensed Real Estate Associate Broker

(917) 416-7433
309 6th Avenue #1
Interested in this property?
Active For Sale Co-op

$2,300,000

309 6th Avenue #1

Park Slope, Brooklyn

MLS® #RLS20086457

RLS at REBNY

Listing by Garfield Realty Corp

Open House Scheduled

Sunday, April 26 • 6:00 PM – 8:00 PM

3

Bedrooms

2

Baths

N/A

Sq. Ft.

1940

Year Built

Quick Summary

Bedrooms 3
Bathrooms 2
Year Built 1940
Ownership Co-op
Maintenance $1,000/mo
Neighborhood Park Slope
Floor 1 of 4

Property Highlights

  • Exposure: East,South,West facing
  • Fireplace: 1 fireplace
  • Style: Prewar architecture

Property Details

Type Co-op
Ownership Stock Cooperative
Total Rooms 6
Baths 2 Full
Floor 1 of 4
Exposure East,South,West
Cooling Central Air
Pets Yes
Cross Street 2nd Street/3rd Street
Year Built 1940
Architectural Style Prewar
Structure Type None
Parcel # 00976-0007-00309-000-0000001
Block/Lot 0976/0007

Listing History

Event Date Price Change
Listed Apr 23, 2026 $2,300,000 -
Currently Apr 24, 2026 $2,300,000 -

Description

A rare opportunity in the heart of Center Slope, just moments from PS 321, this expansive 3BR / 2BA home has been expertly architect-designed and gut-renovated to perfection - every detail thoughtfully considered.

Located on the coveted parlor level of a charming pre-war co-op, the residence seamlessly blends timeless character with modern luxury. Highlights include a wood-burning fireplace, soaring ceilings, central air conditioning, recessed lighting with Lutron dimmer switches, luxe fixtures, a vented in-unit LG washer/dryer for everyday convenience, oversized windows with three exposures, custom shades, and a sun-drenched bay window with built-in shutters.

The beautifully designed, windowed open kitchen is the heart of the home, featuring Aster Cucine cabinetry, Caesarstone countertops, a center island with breakfast bar, and a full suite of integrated Thermador appliances including a refrigerator, dishwasher, wine fridge, vented range with 6-burner cooktop, and microwave, all complemented by a stylish backsplash and undermount lighting.

The spa-like bathrooms are outfitted with premium finishes including a Kohler soaking tub, a separate glass-enclosed rain shower, Duravit toilets (including one with an integrated bidet and heated seat), Duravit sinks, Hansgrohe fixtures throughout, and Geberit in-wall carrier systems.

Thoughtful custom millwork and built-ins frame the fireplace and are complemented by new wood floors, solid extra-height wood doors throughout, and beautifully selected hardware that elevate the overall design. The home is also wired with ethernet and coaxial connections in multiple rooms. The spacious bedrooms offer comfort and flexibility, all wrapped in a tasteful, chic renovation.

Step out onto your private deck, which leads directly to a sprawling private backyard - an incredible extension of your living space and a rare find in Park Slope.

Additional perks include an extraordinary amount of basement storage (currently outfitted as a woodshop for the current owner), incredibly low maintenance of just $1,000/month (includes heat and hot water), and a pet-friendly, self-managed cooperative with strong financials and no underlying mortgage.

A true Park Slope gem with everything on your wish list.

Features & Amenities

Interior Features

Kitchen Window Building Washer Dryer Install Allowed In Unit Fireplace (1)

Exterior Features

Building Storage

Building Amenities

Elevators

Appliances

Dryer Washer

Building Information

Building Data View Compliance & Permits
Stories 4
Structure None
Style Prewar

Financial Details

Maintenance $1,000/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

114

Median Asking Price

$1.71M

Median $/Sqft

$1,376

Avg Days on Market

N/A

New This Week

15

Price Reduced

17%

Sold (30 Days)

24

Median Sale Price

$1.67M

Live data from RLS at REBNY • Updated 4/23/26, 10:12 PM EST

Similar Listings in Park Slope

View All

Location

Loading map...

309 6th Avenue #1, Park Slope, Kings County • Near 2nd Street/3rd Street

Building Information

Official NYC property records for this building

1940
Year Built
86 years old
4
Floors
4
Residential Units
R6B
Zoning District
Walk-Up Apartments

Tax & Assessment

Assessed Value: $1,225,800
Land Value: $13,950
Exemptions: $0

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

Lot Area: 2,299 SF
Building Area: 6,608 SF
Built FAR: 2.87
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 monthly maintenance are $1,000 per month. Confirm the exact amount with the listing broker before making an offer.

This property has 3 bedrooms and 2 full bathrooms.

According to MLS records, the building was constructed in 1940, making it approximately 86 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. Contact the listing broker for weight limits or breed restrictions.

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) 416-7433
MLS® ID: RLS20086457
First Listed: 4/23/2026
On Market: 4/23/2026
Price Changed: 4/23/2026
Contract Date: 4/23/2026

Listing Courtesy of Garfield Realty Corp - Elizabeth R Kohen

Listing Contact: (718) 622-7600

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 4/24/2026 at 2:12 AM UTC

Buying a Co-op? Start Here

Co-op vs. Condo: Which Is Right for You?

Ownership structure, board approval, financing: the full comparison.

Read article

How to Ace Your Co-op Board Interview

What boards look for, common questions, and how to prepare.

Read article

NYC Flip Tax Guide for Sellers

What co-op flip taxes are, how they're calculated, and who pays.

Read article

HDFC Co-ops: Complete Guide

Income limits, resale caps, and how to qualify for affordable co-ops.

Read article

Interested in this property?

Get a response within 2 hours

Your info is secure and never shared.

Call Text Email