For Sale · Listing by Douglas Elliman Real Estate
361 UNION Street #PENTHOUSE
Carroll Gardens, Brooklyn
$4,500,000
361 UNION Street #PENTHOUSE
MLS® #RLS20115890
Listing by Douglas Elliman Real Estate
Open House Scheduled
Sunday, September 20 • 11:00 AM – 12:30 PM
REBNY 2025: signed Buyer Representation Agreement required before any showing.
- 5
- Bedrooms
- 3.5
- Baths
- 2,096
- Sq. Ft.
- 1899
- Year Built
Quick Summary
Property Highlights
- Views: City, Panoramic
- Exposure: North,South facing
- Outdoor Space: None, Rooftop
Property Details
Listing History
| Event | Date | Price | Change |
|---|---|---|---|
| Listed | Sep 17, 2026 | $4,500,000 | - |
| Currently | Sep 17, 2026 | $4,500,000 | - |
Description
Welcome to the Penthouse Triplex at 361 Union Street 5 Bedrooms 3.5 Bathrooms Three Levels Private Penthouse Roof Occupying the upper three floors of 361 Union Street, the Penthouse Triplex is an expansive five-bedroom residence defined by exceptional natural light, beautifully considered interiors, and an extraordinary private roof terrace. Spanning three distinct levels, the home pairs the scale and separation of townhouse living with the elevated perspective and outdoor space of a penthouse. The residence begins with a private entry from the parlor floor, where a dedicated staircase leads to the first of its three living levels. Here, the home opens into an expansive living, dining, and entertaining floor with high ceilings, wide-plank white oak floors, and windows at both the front and rear. The beautifully appointed kitchen is positioned at the center of the floor and features custom warm-oak cabinetry paired with Calacatta stone distinguished by expressive charcoal-gray veining. A substantial island provides generous workspace, storage, and seating, while a premium appliance package is anchored by a Bertazzoni induction cooktop and oven, seamlessly integrated for a clean, considered finish. The living room offers a gracious setting for everyday life, while the centrally positioned kitchen creates a natural separation from the dining room, establishing a distinct yet connected space for entertaining. A bedroom and full bathroom complete the level, offering flexibility as a guest room, home office, or additional sleeping quarters. One flight above, the residence transitions to its primary bedroom level. The spacious primary suite occupies the front of the home and is complemented by a substantial walk-in closet and beautifully finished en-suite bath. Large-format white marble with delicate gray veining creates a serene backdrop, complemented by polished chrome fixtures, concealed shower controls, and a custom recessed niche. A furniture-inspired natural oak double vanity brings warmth and craftsmanship to the space, with woven cane-front cabinetry, sculpted detailing, undermount sinks, and a crisp white stone countertop. Two additional bedrooms, a second full bathroom, and a dedicated washer and dryer complete this floor, thoughtfully separating the home's private quarters from the entertaining spaces below. The third level introduces another dimension to the residence. A fifth bedroom with an adjacent powder room creates a flexible penthouse retreat ideal for guests, a home office, den, or private lounge. From here, the home opens directly onto an exceptional 903-square-foot private roof terrace, creating a true outdoor extension of the residence. Stretching approximately 20 feet wide and more than 45 feet long, the terrace offers remarkable scale for a brownstone condominium and ample room to create distinct areas for outdoor dining, lounging, entertaining, and gardening. Surrounded by open sky and overlooking the surrounding Carroll Gardens roofscape, it provides an extraordinary setting for everything from quiet mornings to large-scale entertaining. With five bedrooms, three-and-a-half bathrooms, three substantial interior levels, and exceptional private outdoor space, the Penthouse Triplex offers a compelling alternative to townhouse living-combining generous proportions, beautifully executed finishes, and the privacy of an upper-floor residence in one of Brooklyn's most coveted brownstone neighborhoods. Set in the heart of Carroll Gardens, 361 Union Street is surrounded by the neighborhood's signature tree-lined brownstone blocks, historic architecture, and distinctly village-like character. Just moments from the cafés, restaurants, boutiques, and everyday conveniences of Smith and Court Streets, the home is also close to beloved Carroll Park and its year-round Sunday Greenmarket. Neighborhood favorites including Frankies 457 Spuntino, Lucali, and F&F Pizzeria are all part of the surrounding dining scene. With the Carroll Street F/G station just around the corner, the location pairs the intimacy and charm of quintessential brownstone Brooklyn with exceptionally convenient access to the rest of the city. The complete terms are in an offering plan available from the Sponsor (File No: CD25-0377)
Features & Amenities
Interior Features
Exterior Features
Appliances
Building Information
Financial Details
About Carroll Gardens
View All Carroll Gardens ListingsCarroll Gardens is defined by its deep front gardens and long-standing bakeries and restaurants along Court and Smith Streets. The real estate market features wide historic brownstones alongside new construction condominiums that maintain the low-rise building scale.
Carroll Gardens Live Market Data
View NeighborhoodActive Listings
34
Median Asking Price
$2.37M
Median $/Sqft
$1,361
Avg Days on Market
N/A
New This Week
7
Price Reduced
18%
Sold (30 Days)
7
Median Sale Price
$2.52M
Live data from RLS at REBNY • Updated 9/17/26, 7:55 PM EST
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Location
361 UNION Street #PENTHOUSE, Carroll Gardens, Kings County
Floor Plans
Building Information
Official NYC property records for this building
Tax & Assessment
Note: Individual unit taxes may differ. Verify current tax bills with NYC DOF.
Source: NYC PLUTO (Primary Land Use Tax Lot Output), NYC Department of City Planning (data.cityofnewyork.us)
Want help estimating ownership costs or understanding building compliance? Let's discuss
Listing Data
RLS® at REBNY (Real Estate Board of New York) via Trestle API. Updated in real-time.
Building Data
NYC PLUTO (Primary Land Use Tax Lot Output), NYC Department of City Planning. Updated quarterly.
Market Data
RLS® at REBNY (Real Estate Board of New York). Live data updated in real-time.
Map & Location
OpenStreetMap contributors via Leaflet. Geocoding via Nominatim.
All data is provided for informational purposes only and should be independently verified. See our Data Sources Policy for more information.
Frequently Asked Questions
Common questions about this property
The current listed common charges are $1,283 per month. Confirm the exact amount with Milton Coste before making an offer.
This property has 5 bedrooms and 3 full bathrooms and 1 half bathroom.
The listed interior living area is 2,096 square feet. Verify dimensions independently during due diligence.
According to MLS records, the building was constructed in 1899, making it approximately 127 years old.
This listing is None
Pets are permitted at this property. Contact Milton Coste for weight limits or breed restrictions.
At the current list price of $4,500,000 for 2,096 sq ft, the asking price per square foot is approximately $2,147. This figure is for reference only and may differ from appraised or assessed values.
To schedule a private showing, contact Milton Coste at (917) 416-7433 or milton@miltoncoste.com. Per REBNY guidelines effective 2025, a Buyer Representation Agreement is required before a buyer's broker can show you properties. You may attend open houses independently without one.
Have a question not answered here?
(917) 416-7433Listing Courtesy of Douglas Elliman Real Estate - Alexander F Maroni
Listing Contact: (917) 704-3102
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.
Buyer Notice: Planning to work with a buyer's broker? A Buyer Representation Agreement is required before your broker can show you properties, per REBNY/UCBA guidelines (effective 2025). You may attend open houses independently without one.
RLS Data display by Keller Williams NYC. Data last updated on 9/17/2026 at 11:55 PM UTC
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Carroll Gardens Market Update
7 sales last 30 days · $2.37M median · 4.9 months supply
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Quick Facts
Monthly Costs Estimate
$900,000
Source: Freddie Mac PMMS
Est. Monthly Payment
$0
Estimates only. Consult a lender for exact figures.
Mansion tax applies at this price point
New York State charges the buyer a mansion tax on residential purchases at $1,000,000 or more. At this asking price the tier is $3M to $4,999,999 at 1.50%, applied to the whole purchase price. It is due in cash at closing and cannot be financed.
Estimated mansion tax at asking
$67,500
Estimate based on the asking price. Confirm your own obligation with your real estate attorney.
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