Under Contract – Backup offers may be accepted
15 William Street #18-AB
MLS® #RLS20069024
Listing by AA Management NYC LLC
3
Bedrooms
3
Baths
2,116
Sq. Ft.
2007
Year Built
Quick Summary
Property Highlights
- Views: River
- Exposure: East,South,West facing
- Climate Control: Central Air
Property Details
Listing History
| Event | Date | Price | Change |
|---|---|---|---|
| Listed | Jan 28, 2026 | $2,495,000 | - |
| Currently | May 13, 2026 | $2,495,000 | - |
Description
UNIQUE FLEX LAYOUT | TRIPLE EXPOSURE | WATER VIEWS
Welcome home to an exceptional and highly versatile condominium opportunity at 15 William Street.
Units 18A (2BR/2BA) and 18B (Lofstyle) are being offered together, presenting a rare chance to create a custom 3BR/3BA residence spanning approximately 2,116 SF, or to enjoy the apartments individually for maximum flexibility.
The future owner may choose to combine both units into a seamless, expansive home tailored to their vision, or keep them separate—using the studio as a guest suite, home office, or income-producing rental to offset carrying costs. This layout offers a unique blend of lifestyle and investment value rarely found in the market.
With triple exposure and water views, both residences enjoy excellent natural light and an airy, open feel. The possibilities for customization and use are truly endless.
15 William Street is a full-service luxury condominium offering one of Downtown’s most comprehensive amenity packages. Residents enjoy over 30,000 SF of amenities, including a 50-foot indoor lap pool, a 15,000 SF fitness center with towel service, yoga studio, squash and basketball courts, screening room, dog park, children’s indoor and outdoor play areas, and a stunning rooftop lounge with sundeck. Additional conveniences include in-unit washer/dryer, parking in the building, 24-hour doorman and concierge, and a live-in resident manager.
A rare opportunity to design, invest, and live exactly the way you want.
Features & Amenities
Interior Features
Exterior Features
Building Amenities
Appliances
Building Information
Financial Details
About Financial District
View All Financial District ListingsThe Financial District occupies the southern tip of Manhattan, where landmark office towers have been converted into spacious residential lofts alongside new luxury high-rise condominiums with river and harbor views. The Oculus and Fulton Center transit hubs connect over a dozen subway lines, including the 2, 3, 4, 5, A, C, J, and Z trains, making it one of the best-connected neighborhoods in the city. Battery Park, Bowling Green, and the 9/11 Memorial provide open green space and waterfront access at the foot of the skyline.
Financial District Live Market Data
View NeighborhoodActive Listings
258
Median Asking Price
$1.35M
Median $/Sqft
$1,270
Avg Days on Market
N/A
New This Week
11
Price Reduced
28%
Sold (30 Days)
23
Median Sale Price
$1.45M
Live data from RLS at REBNY • Updated 5/13/26, 3:06 PM EST
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Location
15 William Street #18-AB, Financial District, New York County • Near Exchange Place/Beaver Street
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 $3,056 per month. Confirm the exact amount with the listing broker before making an offer.
The current listed annual property tax is $49,344, or roughly $4,112 per month. Verify the current assessment with your attorney before closing.
This property has 3 bedrooms and 3 full bathrooms.
The listed interior living area is 2,116 square feet. Verify dimensions independently during due diligence.
According to MLS records, the building was constructed in 2007, making it approximately 19 years old.
This listing is a condominium. Buyers receive a deed to their individual unit and own their space outright, subject to condo association rules.
Pets are permitted at this property. Contact the listing broker for weight limits or breed restrictions.
At the current list price of $2,495,000 for 2,116 sq ft, the asking price per square foot is approximately $1,179. 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 [email protected]. 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 AA Management NYC LLC - Arie Abadi
Listing Contact: (212) 952-0800
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 5/13/2026 at 7:06 PM UTC