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RLS IDX Data display by Real Estate Rebate Team. 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. IDX information is provided exclusively for consumers’ personal, non-commercial use and it may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing.

 

All information furnished regarding property for sale, rental or financing is from sources deemed reliable, but no warranty or representation is made as to the accuracy thereof and same is submitted subject to errors, omissions, change of price, rental or other conditions, prior sale, lease or financing or withdrawal without notice. All dimensions are approximate. For exact dimensions, you must hire your own architect or engineer and for no listing shall the number of bedrooms listed be considered a legal conclusion.

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  1. Home
  2. Buy
  3. New York City
  4. Brooklyn
  5. 11215
  6. 823 UNION Street
Property thumbnail
1 / 17
•Park Slope

823 UNION Street, New York City, NY 11215

Listing Courtesy of Brown Harris Stevens Brooklyn LLC

$2,995,000

Potential Rebate: $44,925

6 Beds
4 Baths
11 Rooms
800 sqft
Built 1901
2 Stories
3,744/ft²
Listed on Nov 18, 2025
38 days on market
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Overview

Two family, 3 story + cellar brownstone on 20 x 90 foot lot. Much original detail intact; plaster moldings, wood doors and window shutters. Garden level is a two bedroom, one bath unit with kitchen open to living room, and access to rear garden thru larger bedroom. Upper duplex has large living room with bay window, separate formal dining room and separate kitchen, powder room in hallway. Top floor has four bedrooms and two full baths; one ensuite to front bedroom. Metal deck off dining room on parlor floor. Rear garden. Large cellar contains gas boiler, water heater and meters.<br> <br> <br> <br> <br>

Home Features

  • •In Unit
  • •Private Outdoor Space Over 60 Sqft
  • •Smoke Free

Estimated Monthly Payment

$15,509 per month

30 year fixed, 6.28% Interest

Principal and Interest
$14,799
Property Taxes
$710
Maintenance/Common Charges
$0

Estimated Rebate for this Home

One-time rebate at closing

$44,925

Monthly savings impact

$125/mo

💡 Estimated at 1.5% of purchase price

The rebate is paid to you at closing and can help offset closing costs or other expenses.

Calculator Disclaimer: This calculator provides estimates for informational purposes only. Actual monthly payments, interest rates, taxes, and rebate amounts may vary. The rebate calculation is an estimate and subject to final terms. This information is not provided by the Real Estate Board of New York (REBNY).

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Why Buy With Us

Rebates Up To

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25+ Years

Experience

REBNY & NAR

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Listings

RLS IDX Data display by Real Estate Rebate Team. 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. IDX information is provided exclusively for consumers’ personal, non-commercial use and it may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing.

 

All information furnished regarding property for sale, rental or financing is from sources deemed reliable, but no warranty or representation is made as to the accuracy thereof and same is submitted subject to errors, omissions, change of price, rental or other conditions, prior sale, lease or financing or withdrawal without notice. All dimensions are approximate. For exact dimensions, you must hire your own architect or engineer and for no listing shall the number of bedrooms listed be considered a legal conclusion.

The Real Estate Rebate Team

Listing Courtesy of Brown Harris Stevens Brooklyn LLC

Data Source: TRESTLE #RLS20057426

REBNY Logo

Price Analysis

Compare average listing prices and value metrics for 823 UNION Street against the surrounding Park Slope market.

Based on 1 active units in building vs 66 in area

Average List Price

Building$3.0M
Neighborhood$2.5M

Price Per SqFt

Building Avg$3,744/ft²
Neighborhood Avg$1,597/ft²
Premium Market

134.40% Higher

than the Park Slope price-per-sq-ft average

This building commands a premium compared to the neighborhood baseline. This typically indicates superior amenities, newer construction, or prime positioning within Park Slope.

Park Slope

Overview of Park Slope

Park Slope is the quintessential family neighborhood of New York. Famous for its miles of brownstones, the expansive Prospect Park, and its progressive, literary vibe, it is often voted one of the best neighborhoods in America. For buyers seeking Park Slope Brooklyn real estate, it is the ultimate blend of beauty, community, and green space.

Living in Park Slope is idyllic. The avenues (5th and 7th) are lined with independent shops and strollers. As a premier Brooklyn NYC neighborhood, it sets the standard for brownstone living.

Real Estate & Housing Market

The market for homes for sale in Park Slope is premium. The "Gold Coast" along Prospect Park West features limestone mansions, while the side streets offer classic brownstones and co-ops.

Prices are high, especially for properties zoned for PS 321. It is a stable, high-value market that attracts families moving from Manhattan.

Lifestyle & Community

The lifestyle in Park Slope is active and community-focused. Residents spend weekends in Prospect Park, shop at the Park Slope Food Coop (if they are members), and dine at farm-to-table restaurants.

The community is known for being liberal, educated, and civic-minded. It is a "small town" within the big city.

Transportation & Accessibility

Park Slope is served by the F, G, R, 2, 3, B, and Q trains (depending on where in the slope you are). Commuting to Midtown takes 25-35 minutes.

The F train at 7th Avenue is the central hub for the neighborhood.

Parks, Schools & Amenities

Prospect Park is the neighborhood's backyard. Designed by the same creators as Central Park, it offers a zoo, a lake, and huge meadows. It is the center of life here.

Amenities are incredible: the Park Slope Food Coop, the Brooklyn Public Library, the Botanic Garden, and excellent public schools make it a self-contained paradise.

Who This Neighborhood Is Best For

Park Slope is best for families, writers, runners, and anyone who prioritizes parks, schools, and community over nightlife.

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