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15 William Street 18AB, New York NY 10005
15 William Street 18AB, New York NY 10005
15 William Street 18AB, New York NY 10005
15 William Street 18AB, New York NY 10005
15 William Street 18AB, New York NY 10005
15 William Street 18AB, New York NY 10005
15 William Street 18AB, New York NY 10005
15 William Street 18AB, New York NY 10005
15 William Street 18AB, New York NY 10005
15 William Street 18AB, New York NY 10005
15 William Street 18AB, New York NY 10005
15 William Street 18AB, New York NY 10005
15 William Street 18AB, New York NY 10005
15 William Street 18AB, New York NY 10005
New York>Manhattan>Financial District

15 William Street 18ABNew York, NY 10005

For Sale

$2,495,000

Smart Buyer Rebate $31,188

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.

Listed by Arie Abadi

·

AA Management NYC LLC

·

(212) 952-0800

Last updated January 28, 2026

·

Source: REBNY #RLS20069024

Listing Facts

  • TypeCondo
  • NeighborhoodFinancial District
  • Bedrooms3
  • Bathrooms3
  • Days on Prevu1
  • HOA/Maint. Fees$3,056/month
  • Taxes$49,344/year
  • Size2,116 sqft
  • Price per sqft$1,179

Amenities

  • Washer/Dryer
  • Pets Allowed
  • Concierge
  • Pied-A-Terre Allowed

Location

Mortgage Calculator

Listing History

01/28/2026
Listed by AA Management NYC LLC
$2,495,000

Estimated Closing Costs

Total
$95,140
Attorney Fees
$4,000
NYC Mansion Tax
$31,187
Title Insurance
$11,228
Bank Attorney
$1,500
Mortgage Recording Tax
$43,225
Other Closing Costs
$4,000

Estimated closing costs are based on the list price of $2,495,000 and a 10% 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 15 William Street 18AB

Association

Amenities

  • Pets Allowed: Building Yes, Yes
  • Concierge: Concierge Full Time, Doorman Full Time, Lobby Attendant Full Time

Fees

  • Association Fee: $3,056.00 Monthly

Financial

  • Flip Tax Remarks: ASK EXCL BROKER

Exterior

Construction

  • Stories Total: 44
  • Structure Type: High Rise
  • Year Built: 2007
  • Entry Level: 18

Features

  • Building Features: Elevator(s)
  • View: River

Financial

Taxes

  • Tax Annual Amount: $49,344.00

Interior

Features

  • Appliances: Dryer, Washer
  • Interior Features: Dining Area

Measurements

  • Living Area: 2,116
  • Living Area Units: SquareFeet

Rooms

  • Bathrooms Full: 3
  • Bathrooms Total Integer: 3
  • Bedrooms Total: 3
  • Rooms Total: 6

Other

Location

  • City Region: Manhattan
  • Subdivision Name: Financial District
  • Tax Block: 0025
  • Tax Lot: 7501

Parking

Parking

  • Garage: Yes

Utilities

Equipment

  • Cooling: Central Air
  • Has Cooling: Yes
  • Laundry Features: Common Area, In Unit

Frequently Asked Questions

How many bedrooms and bathrooms does this condo have?

There are 3 bedrooms and 3 bathrooms in this condo at 15 William Street 18AB.

Are pets allowed at 15 William Street?

Yes, 15 William Street allows pets.

What are the annual taxes for 15 William Street 18AB?

Annual taxes for this condo are estimated at $49,344.

How does 15 William Street 18AB compare to other condos in Financial District?

This condo is listed 8% above the average price for condos in Financial District and has been on the market for 315 less days than the typical home in this area.

What is the square footage on this condo?

According to the MLS, this listing is 2,116 sqft.

15 William Street 18AB is a 3-bedroom, 3-bath condo for sale in New York NY 10005. On Prevu for 1 days at $2,495,000. This home features 2,116 square feet of living space, located in Financial District. The median listing price for condos in this area is $1,397,500. Property amenities include pets allowed, doorman, pied-a-terre allowed, and washer/dryer. Browse more condo listings in Manhattan.

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. ©2026 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.