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725 Union Street 1Brooklyn, NY 11215

For Sale

$2,250,000

Smart Buyer Rebate $28,125

An extraordinary Park Slope residence that defies expectation. 

With over 3,500 square feet, this loft condominium combines industrial charm, a beautifully crafted environment, and remarkably low monthly costs. Set beneath 12-foot ceilings, this duplex is configured with an upper level one-bedroom (easily convertible to two) and a lower level featuring a spacious dance studio, dedicated office, and guest room.

Upon entering the loft, the grand scale and architectural artistry of the great room immediately impress. Exquisite red oak hardwood floors, exposed brick walls, tin ceilings, a wood-burning fireplace, and bespoke ironwork create a space that is both dramatic and inviting. The large chef's kitchen has rich cherry wood cabinetry, handcrafted tile-work, a convection oven and dishwasher. The bathroom is stunning. It's a spa-inspired space with marble & stone tiling, an open rainfall shower and a clawfoot soaking tub. A staircase, framed by built-in bookshelves, leads to the sleeping loft, a lovely room perched above the great room and bathed in soft light. There is also a dedicated laundry room, a large walk-in closet, and 3 additional storage closets.

The lower level opens to a professional dance studio, but if dance isn't your passion, this flexible space can be reimagined as an entrepreneurial space, architect's office, wellness studio, recreation room, or guest retreat. This gas-free home is designed with sustainability in mind, featuring split-system HVAC on both levels and an energy-efficient on-demand hot water system.

This exceptional property offers rare versatility - fully residential, or a sophisticated fusion of home, business, and pleasure. Opportunities of this scale and adaptability rarely appear in the Park Slope market. Claim your place here and shape its next chapter, surrounded by Brooklyn's fantastic cultural hubs, the beauty of Prospect Park, and the vibrant shops and eateries along 5th Avenue.





Listed by Kristi Spessard Azaroff

·

Brown Harris Stevens Brooklyn LLC

·

(718) 644-6429

Last updated November 16, 2025

·

Source: REBNY #RLS20049529

Listing Facts

  • TypeCondo
  • NeighborhoodNorth Slope
  • Bedrooms1
  • Bathrooms1.5
  • Days on Prevu29
  • HOA/Maint. Fees$333/month
  • Size3,504 sqft
  • Price per sqft$642

Amenities

  • Private Outdoor Space
  • Pets Allowed

Location

Mortgage Calculator

Listing History

10/21/2025
Listed by Brown Harris Stevens Brooklyn LLC
$2,250,000

Estimated Closing Costs

Total
$82,400
Attorney Fees
$4,000
NYC Mansion Tax
$28,125
Title Insurance
$10,125
Bank Attorney
$1,500
Mortgage Recording Tax
$34,650
Other Closing Costs
$4,000

Estimated closing costs are based on the list price of $2,250,000 and a 20% downpayment. These estimates are for indicative purposes only. Actual closing costs may vary for each transaction. See the Closing Costs Calculator for calculations specific to your situation.

Property Details for 725 Union Street 1

Association

Amenities

  • Pets Allowed: Building Size Limit, Building Yes, Size Limit, Yes

Fees

  • Association Fee: $333.00 Monthly

Exterior

Construction

  • Number Of Units Total: 4
  • Stories Total: 4
  • Year Built: 1920
  • Architectural Style: Loft
  • Entry Level: 1

Financial

Taxes

  • Parcel Number: 00952-1101

Interior

Features

  • Fireplace: Yes
  • Fireplaces Total: 1

Measurements

  • Living Area: 3,504
  • Living Area Units: SquareFeet

Rooms

  • Bathrooms Full: 1
  • Bathrooms Half: 1
  • Bathrooms Total Integer: 2
  • Bedrooms Total: 1
  • Rooms Total: 7

Other

Location

  • City Region: Brooklyn
  • Subdivision Name: Park Slope
  • Tax Block: 00952
  • Tax Lot: 7504

Utilities

Equipment

  • Laundry Features: In Unit

Based on information from Real Estate Board of New York and/or other sources. This information is not verified for authenticity or accuracy and is not guaranteed and may not reflect all real estate activity in the market. ©2025 The Real Estate Board of New York, Inc., All rights reserved.

Full MLS Disclaimers

Rebate estimate is indicative only and based on listing price and estimated buyer's agent commission paid by owner, if applicable. Final rebates are subject to Terms of Use and may vary due to final negotiated transaction terms.