Milton Coste

Licensed Real Estate Associate Broker

(917) 416-7433
323 5TH Avenue
Active For Sale Mixed Use

$3,900,000

$1,368 per sq ft

323 5TH Avenue

Park Slope, Brooklyn

MLS® #RLS20047909

RLS at REBNY

Listing by Douglas Elliman Real Estate

3

Bedrooms

3.5

Baths

2,851

Sq. Ft.

1925

Year Built

Quick Summary

Bedrooms 3
Bathrooms 3 full, 3 half
Living Area 2,851 sq ft
Lot Size 1,263.13 sq ft
Year Built 1925
Ownership None
Property Taxes $9,972/yr
Neighborhood Park Slope
Floor 1 of 3

Property Highlights

  • Views: Other
  • Climate Control: Other
  • Character: Pre-war building (1925)

Property Details

Type Mixed Use
Ownership None
Total Rooms 8
Baths 2 Full, 3 Half
Floor 1 of 3
View Other
Cooling Other
Pets Yes
Year Built 1925
Living Area 2,851 sq ft
Structure Type MixedUse
Basement Other
Lot Size 1,263.13 sq ft
Parcel # 00982-0008
Block/Lot 00982/0008

Description

323 5th Avenue - 21.5ft Wide Prime Park Slope Mixed-Use with Retail & Duplex Residence Currently Zoned to PS 321  

An exceptional opportunity in the heart of Park Slope, 323 5th Avenue offers a mixed-use building that combines stable commercial tenancy with a spacious duplex residence, encompassing approximately 2,851 square feet including the basement. 

Ground Floor & Lower Level  

A preschool currently occupies t he street-level retail storefront provid ing excellent frontage and visibility along bustling Fifth Avenue, benefitting from consistent neighborhood activity. A finished slab basement adds flexible space for storage or back-of-house operations. Tenant is in place through 20 31.  

Residential Duplex with Terrace currently zoned to PS 321  

A newly renovated duplex apartment blends modern comfort with thoughtful design. Hardwood floors run throughout, complemented by double-pane insulated windows. The main level features expansive living and dining areas along with a modern, generously sized kitchen outfitted with updated appliances and ample counter space. The kitchen flows directly to a private terrace of approximately 400 square feet-an ideal setting for grilling, gardening, or outdoor entertaining. A convenient half bath completes this level.  

Upstairs, the primary suite includes a generous walk-in closet and a modern, upgraded en-suite bathroom. Two additional bedrooms share a second full bathroom, also updated with contemporary finishes.   

Building Upgrades  

The property was recently improved with new mechanicals, including two boilers and HVAC systems, providing efficiency and peace of mind for both residential and commercial use.  

Income / Expense set up available upon request  

Perfectly positioned near Prospect Park and surrounded by Park Slope's acclaimed restaurants, cafés, and shops, 323 5th Avenue combines commercial stability with desirable residential living in one of Brooklyn's most sought-after neighborhoods. The building also carries approximately 935 square feet of unused FAR; buyers are encouraged to consult with an architect or other professional regarding potential options.  

 

Features & Amenities

Interior Features

Smoke Free Building Other Washer Hookup In Unit

Exterior Features

Private Outdoor Space Over60 Sqft

Building Amenities

Green Building

Appliances

Washer Dryer Allowed

Building Information

Total Units 2
Stories 3
Structure MixedUse

Financial Details

RE Taxes $9,972/yr ($831/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

$1.79M

Median $/Sqft

$1,374

Avg Days on Market

N/A

New This Week

2

Price Reduced

18%

Sold (30 Days)

22

Median Sale Price

$1.60M

Live data from RLS at REBNY • Updated 2/16/26, 5:02 AM EST

Similar Listings in Park Slope

View All

Location

Loading map...

323 5TH Avenue, Park Slope, Kings County

MLS® ID: RLS20047909
First Listed: 9/11/2025
On Market: 9/11/2025
Price Changed: 9/11/2025
Contract Date: 9/11/2025

Listing Courtesy of Douglas Elliman Real Estate - Anthony Robles

Listing Contact: (917) 617-9602

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.

RLS at REBNY

RLS Data display by Keller Williams NYC. Data last updated on 2/16/2026 at 10:02 AM UTC

Call WhatsApp
Call Milton WhatsApp