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433 3rd Street
Last updated on Apr 10, 2026

433 3rd Street

Boutique eight-unit limestone co-op with no mortgage, low maintenance, and beautifully renovated apartments featuring high ceilings and premium finishes. Prime Park Slope location steps from Prospect Park with excellent transit access and PS 321 zoning.

433 3rd Street Location Map

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Overview of 433 3rd Street

433 3rd Street is an eight unit self managed co-op housed in a boutique corner limestone building on one of Park Slope's most desirable tree lined blocks. The building is 28 feet wide and extra deep, with no underlying mortgage and notably low maintenance fees. The financially sound cooperative welcomes cats but does not permit dogs.

Apartments typically feature high ceilings, original hardwood floors, and historic moldings throughout. Most units showcase five large south facing windows in the main living spaces, flooding the open plan living, dining, and kitchen areas with natural light. The north facing bedrooms overlook neighboring gardens, providing quiet and tranquil spaces. Common apartment features include floor-to-ceiling built-in bookshelves, renovated kitchens with marble countertops and high end appliances (including Liebherr refrigerators, Bosch dishwashers, and DCS ranges), and in-unit washers and dryers. Many units have been updated with split system air conditioning and renovated bathrooms featuring marble finishes.

Select units offer distinctive features such as private roof decks of approximately 500 square feet with skyline views and wisteria covered pergolas, dedicated home offices, projection screens for home theater setups, and bay windows in corner exposures. The building provides generous deeded basement storage for all residents, along with bike storage and covered stroller parking in the front yard.

The building sits just one to three blocks from Prospect Park and JJ Byrne Playground, with convenient access to the B, Q, F, and R trains. Residents enjoy proximity to the Sunday Down to Earth Farmers Market, Whole Foods on 3rd and 3rd, and the abundant cafes, restaurants, and shops along both 5th and 7th Avenues. The building is zoned for PS 321.

Doorman
None
Type
Co-op
Year Built
1920
Apartments
Floors
4
Neighborhood
Min Down
20%

Amenities

  • Pre War
  • Walk Up
  • Resident Storage
  • Central AC
  • Garden
  • Rooftop Terrace
  • In-Unit Washer/Dryer
  • Bike Room
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  1. F
at 7th Ave and 9th 0.37 miles
  1. R
  2. G
at 4th Ave 0.41 miles

Pros & Cons

  • Pre war building with historic architectural details
  • South facing windows with abundant natural light
  • Historic moldings
  • Original hardwood floors
  • High ceilings throughout
  • Renovated kitchens with marble countertops
  • High end appliances including Liebherr, Bosch, and DCS
  • In-unit washer and dryer
  • Central AC and split system air conditioning
  • Renovated bathrooms with marble finishes
  • Private roof decks with skyline views (select units)
  • Deeded basement storage
  • Self managed co-op
  • Bike storage available
  • Common front gardens
  • Cat friendly building
  • Corner limestone building
  • 1 to 3 blocks from Prospect Park
  • Multiple subway lines nearby (B, Q, F, R trains)
  • Zoned for PS 321
  • Financially sound cooperative
  • Tree lined block in prime Park Slope
  • Low maintenance fees
  • Walk up building with no elevator
  • No dogs allowed

Sales History

Price/Room (Est)

Why are we displaying the estimated price per room?

For some co-ops, instead of price per square foot, we use an estimate of the number of rooms for each sold apartment to chart price changes over time. This is because many co-op listings do not include square footage information, and this makes it challenging to calculate accurate square-foot averages.

By displaying the price per estimated room count, we are able to provide a more reliable and consistent metric for comparing sales in the building. While we hope that this gives you a clearer sense of price trends in the building, all data should be independently verified. All data provided are only estimates and should not be used to make any purchase or sale decision.

Price/Ft2 (Est)
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Sales Summary

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Sales History by Apartment Size

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Pricing Comparison of Similar Buildings

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Editorial Coverage

Alternate Addresses

  • 433 3 Street
  • 433 Third Street
One United Nations Park
between East 39th Street & East 40th Street
Murray Hill
One United Nations Park is an unprecedented interplay of privacy and light—a balance that reflects the architecture’s bold exterior and luminous interiors.
Learn More
One United Nations Park - Exterior View - Building One United Nations Park - Exterior/Interior View - Terrace and Living Room One United Nations Park - Interior - Corner View - Living Room One United Nations Park - Interior - Living Room - View of ESB One United Nations Park - Interior View - Colorful Living Room