Listing Courtesy of Brown Harris Stevens Brooklyn LLC
$2,995,000
Potential Rebate: $44,925
IN CONTRACT <br> <br> 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>
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. ©2026 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 the number of bedrooms listed is for informational purposes and is not a legal conclusion. Please consult with your own architect or engineer for exact dimensions and legal specifications.
The Real Estate Rebate Team
Listing Courtesy of Brown Harris Stevens Brooklyn LLC
Data Source: TRESTLE #RLS20057426
RLS at REBNY

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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. ©2026 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 the number of bedrooms listed is for informational purposes and is not a legal conclusion. Please consult with your own architect or engineer for exact dimensions and legal specifications.
The Real Estate Rebate Team
Listing Courtesy of Brown Harris Stevens Brooklyn LLC
Data Source: TRESTLE #RLS20057426
RLS at REBNY


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$15,509 per month
30 year fixed, 6.28% Interest
One-time rebate at closing
$44,925
Monthly savings impact
$125/mo
Effective Purchase Price
$2,950,075
(Home Price - Estimated Rebate)
💡 Estimated rebate from our commission
The rebate is paid to you at closing and can help offset closing costs or other expenses.
Calculator Disclaimer: Commission structures vary by property, developer, and transaction. Resale properties typically offer around 3% buyer-side commission, and new developments around 5%, but this is not guaranteed. New developments are often open to negotiation, and each property and transaction is unique. Rebate amounts shown are estimates only. Please confirm commission terms and rebate eligibility with Regis Roumila for the specific property you are interested in. This information is not provided by the Real Estate Board of New York (REBNY).
Compare average listing prices and value metrics for 823 UNION Street against the surrounding Park Slope market.
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.