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15 William Street 18DNew York, NY 10004

For Sale

$835,000

Smart Buyer Rebate $8,375

Bathed in light and beautifully proportioned, Residence 18D at 15 William Street is a spacious 698 sq ft studio framed by oversized windows with sweeping open views of the river and skyline. The layout is designed for both ease and versatility, with thoughtfully defined areas for living, dining, and sleeping. Custom window treatments and Burmese teak floors bring warmth and texture, while a cleverly integrated Murphy office provides a discreet, built-in workspace that tucks away effortlessly. The kitchen pairs style and function with Miele and Liebherr appliances, white lacquer cabinetry, and Caesarstone counters. The spa-style bath features a deep soaking tub, a rain shower, and refined modern fixtures. Louvered doors allow sunlight to filter through to the dressing area, home to a generous walk-in closet, creating a bright yet private space to get ready each day. An in-unit washer/dryer completes the residence. At 15 William, residents enjoy a comprehensive collection of hotel-style amenities, including a 24-hour doorman, state-of-the-art fitness center and yoga studio, indoor lap pool and outdoor hot tub, basketball and squash courts, screening room, children's playroom, dog run, and rooftop lounge with a sundeck, kitchen and panoramic views. Set in the heart of the Financial District, moments from the Seaport, Stone Street, and multiple subway lines, 15 William offers a seamless downtown lifestyle where comfort, design, and convenience meet.

Listed by Ashlei V De Souza

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Serhant

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(917) 388-5432

Listed by Jonathan Ducharme

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Serhant

Last updated January 24, 2026

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Source: REBNY #RLS20056656

Listing Facts

  • TypeCondo
  • NeighborhoodFinancial District
  • Bathrooms1
  • Days on Prevu97
  • HOA/Maint. Fees$1,008/month
  • Size698 sqft
  • Price per sqft$1,196

Amenities

  • Private Outdoor Space
  • Pets Allowed
  • Concierge

Location

Mortgage Calculator

Listing History

01/20/2026
Price Decreased
$835,000
10/25/2025
Listed by Serhant
$850,000

Estimated Closing Costs

Total
$27,724
Attorney Fees
$4,000
Title Insurance
$3,758
Bank Attorney
$1,500
Mortgage Recording Tax
$14,466
Other Closing Costs
$4,000

Estimated closing costs are based on the list price of $835,000 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 18D

Association

Amenities

  • Community Features: Sauna
  • Pets Allowed: Breed Restrictions, Building Yes, Yes
  • Concierge: Doorman Full Time, Concierge Full Time

Fees

  • Association Fee: $1,008.00 Monthly

Exterior

Construction

  • Number Of Units Total: 320
  • Stories Total: 47
  • Structure Type: High Rise
  • Year Built: 2005
  • Building Name: William Beaver House
  • Entry Level: 18

Features

  • View: City, River

Financial

Taxes

  • Parcel Number: 0025-1495

Interior

Features

  • Interior Features: Dining Area
  • Spa Features: Sauna

Measurements

  • Living Area: 698
  • Living Area Units: SquareFeet

Rooms

  • Has Basement: Yes
  • Bathrooms Full: 1
  • Bathrooms Total Integer: 1
  • Rooms Total: 2

Other

Location

  • City Region: Manhattan
  • Subdivision Name: Financial District
  • Tax Block: 00025
  • Tax Lot: 7501

Parking

Parking

  • Garage: Yes

Utilities

Equipment

  • Cooling: Central Air
  • Has Cooling: Yes
  • Laundry Features: In Unit

Frequently Asked Questions

How many bedrooms and bathrooms does this condo have?

There is bedrooms and 1 bathroom in this condo at 15 William Street 18D.

Are pets allowed at 15 William Street?

Yes, 15 William Street allows pets. Check the Property Details for any relevant restrictions.

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

This condo is listed 64% below the average price for condos in Financial District and has been on the market for 219 less days than the typical home in this area.

What building or home owners association is the condo part of?

This condo is in the William Beaver House building.

What is the square footage on this condo?

According to the MLS, this listing is 698 sqft.

15 William Street 18D is a -bedroom, 1-bath condo for sale in New York NY 10004. On Prevu for 97 days at $835,000. This includes a recent price decrease of $15,000. This residence features 698 square feet of living space, located in Financial District. The median listing price for condos in this area is $1,397,500. Additional amenities include private outdoor space, pets allowed, and doorman. Explore 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.