---
title: "15 WILLIAM Street #21D, New York City, NY 10005"
description: "15 WILLIAM Street #21D, New York City, NY 10005 — Financial District, New York City, NY. Listing Price $899,000. 1 bed, 1 bath, 698 sqft Illustrative Buyer Commission Share of $13,485 at closing, based on a 3% buyer-broker commission."
url: "https://realestaterebatesnewyork.com/buy/newyorkcity/manhattan/10005/15-william-street-21d-ny-10005"
source: "Real Estate Rebate Team"
dateModified: "2026-09-29T02:21:46.494Z"
status: "Active"
---

# 15 WILLIAM Street #21D, New York City, NY 10005

Financial District, New York City, NY

Courtesy of Corcoran Group

Last updated: September 28, 2026, 10:21 PM

## At a Glance

- **Listing Price**: $899,000
- **Beds**: 1
- **Baths**: 1
- **Sqft**: 698
- **Common Charges**: $961 / mo
- **Price per Sqft**: $1,288
- **Brokerage Fee**: Share Eligible

## The Private Brokerage Advantage

As an independent luxury buyer representative, Régis shares 50% of the buyer-side commission he actually receives on your purchase. Eligible buyers receive that Buyer Commission Share directly at closing to offset closing costs, down payments, or renovations. The figures below are illustrative, based on a **3% buyer-broker commission**; your share follows the commission offered on the transaction.

- **Contract Purchase Price**: $899,000
- **Illustrative Buyer Commission Share**: -$13,485*
- **Illustrative Net Cost**: $885,515

*Illustrative Buyer Savings of $13,485 — 50% of a 3% buyer-broker commission, shared at closing.*

[Request a private tour](https://realestaterebatesnewyork.com/contact) · [Estimate your Buyer Commission Share](https://realestaterebatesnewyork.com/calculators/buyer-closing-cost-calculator)

## Photos (6)

![15 WILLIAM Street #21D, New York City, NY 10005 — photo 1 of 6](https://realestaterebatesnewyork-bucket.nyc3.cdn.digitaloceanspaces.com/72ef93d2-0bc2-42bf-b4df-125a5e02e0df.jpg)
![15 WILLIAM Street #21D, New York City, NY 10005 — photo 2 of 6](https://realestaterebatesnewyork-bucket.nyc3.cdn.digitaloceanspaces.com/0ebe61d4-510e-41ab-96fc-aa684bd3fef5.jpg)
![15 WILLIAM Street #21D, New York City, NY 10005 — photo 3 of 6](https://realestaterebatesnewyork-bucket.nyc3.cdn.digitaloceanspaces.com/d1a073c2-3d1c-4f26-8d5e-c1bb1b9129dc.jpg)
![15 WILLIAM Street #21D, New York City, NY 10005 — photo 4 of 6](https://realestaterebatesnewyork-bucket.nyc3.cdn.digitaloceanspaces.com/1d67a826-5a0a-45ba-b0a0-d43b039fcb7f.jpg)
![15 WILLIAM Street #21D, New York City, NY 10005 — photo 5 of 6](https://realestaterebatesnewyork-bucket.nyc3.cdn.digitaloceanspaces.com/90e33406-ffb6-4537-8605-cb5b9ae6116f.jpg)
![15 WILLIAM Street #21D, New York City, NY 10005 — photo 6 of 6](https://realestaterebatesnewyork-bucket.nyc3.cdn.digitaloceanspaces.com/76781847-f52c-405a-b338-8f45ba8e70f3.jpg)

## Property Overview

This modern designed alcove studio boasts 698 sq. ft. of living space. Light pours through the expansive double-glazed 8'2 windows with southeastern exposures, offering stunning views of downtown New York and the Harbor. The open kitchen and spacious living area give the apartment a loft-like feel. The kitchen features custom designed cabinetry and high-end appliances. The bath includes an oversized deep soaking tub and a separate rain shower. The apt. features 9'8 ceiling heights, Burmese Teak flooring and washer/dryer.

 Residents of 15 William Street are treated to an array of exceptional amenities. The building boasts a state-of-the-art fitness center, a serene spa, a refreshing pool, and a rooftop deck with breathtaking views. Additionally, there is a private screening room for movie enthusiasts, a dog park for furry friends, an outdoor children's playground and indoor playroom for little ones, and a stunning rooftop lounge and outdoor sundeck for residents' enjoyment.

 The building also offers modern conveniences such as parking, ensuring hassle-free access to your vehicle. A full-time doorman and concierge are available to assist residents, providing a high level of service and security. Furthermore, the presence of a live-in resident's manager adds an additional layer of personalized care and attention.

## Property Details

- **Property Type**: Condominium
- **Beds**: 1
- **Baths**: 1
- **Rooms**: 3
- **Sqft**: 698 sqft
- **Stories**: 44
- **Year Built**: 2005
- **Price per Sqft**: $1,288
- **Common Charges**: $961 / Monthly
- **Listed On**: Sep 28, 2026
- **Days on Market**: 2 Days

### Residence Features

- Central Air
- Building Other
- Washer Hookup
- In Unit
- Building Courtyard
- Building Roof Deck
- City
- Ocean

### Building Amenities

- Sauna

## Estimated Monthly Payment

**$5,507 / month**, assuming a 20% down payment ($179,800), a 6.5% interest rate and a 30-year term. The page's calculator lets a buyer change all three.

- **Principal & Interest**: $4,546
- **Common Charges**: $961

Estimates only. Actual payments may vary. Confirm terms with your lender.

## Sales and market data

### Recent sales

66 apartments at William Beaver House have recorded sales since September 2021, the most recent for $955,000 in August 2026. Prices are the figures recorded with the City, not asking prices.

| Unit | Beds | Sq Ft | Sold Price | $/ft² | Sold | Source |
| --- | --- | --- | --- | --- | --- | --- |
| [15C](https://realestaterebatesnewyork.com/buy/newyorkcity/manhattan/10005/15-william-street-15c-ny-10005) (Apartment) | 1 | 832 | $955,000 | $1,148/ft² | August 17, 2026 | MLS |
| [14C](https://realestaterebatesnewyork.com/buy/newyorkcity/manhattan/10005/15-william-street-c-14C-ny-10005) (Apartment) | 1 | 832 | $950,000 | $1,142/ft² | July 21, 2026 | MLS |
| 10G (Apartment) | 1 | 850 | $825,000 | $971/ft² | June 30, 2026 | MLS |
| 15H (Apartment) | 2 | 1,373 | $1,445,000 | $1,052/ft² | June 25, 2026 | MLS |
| 21A (Apartment) | 2 | 1,325 | $1,445,000 | $1,091/ft² | June 15, 2026 | City record · MLS |
| 18-AB (Apartment) | 3 | 2,116 | $2,450,000 | $1,158/ft² | June 3, 2026 | MLS |
| 14E (Apartment) | 2 | 1,300 | $1,545,000 | $1,188/ft² | May 12, 2026 | City record · MLS |
| 21E (Apartment) | 2 | 1,300 | $1,578,000 | $1,214/ft² | May 7, 2026 | City record · MLS |
| 9F (Apartment) | 1 | 812 | $900,000 | $1,108/ft² | April 28, 2026 | City record · MLS |
| 11G (Apartment) | — | 800 | $845,000 | $1,056/ft² | April 17, 2026 | City record |
| 18D (Apartment) | Studio | 698 | $830,000 | $1,189/ft² | April 16, 2026 | City record · MLS |
| 33I (Apartment) | 2 | 1,273 | $1,413,000 | $1,110/ft² | April 15, 2026 | City record · MLS |
| 28H (Apartment) | — | 1,373 | $170,000 | $124/ft² | March 16, 2026 | City record |
| 27A (Apartment) | 2 | 1,325 | $1,620,000 | $1,223/ft² | December 15, 2025 | City record |
| 22H (Apartment) | 2 | 1,373 | $1,595,000 | $1,162/ft² | December 5, 2025 | City record · MLS |
| 46J (Apartment) | — | 960 | $1,333,000 | $1,389/ft² | October 29, 2025 | City record |
| 39F (Apartment) | 1 | 812 | $999,000 | $1,230/ft² | October 17, 2025 | City record · MLS |
| 36D (Apartment) | — | 698 | $820,000 | $1,175/ft² | October 2, 2025 | City record |
| 42A (Apartment) | 2 | 1,325 | $1,755,000 | $1,325/ft² | October 2, 2025 | City record · MLS |
| 36DE (Apartment) | 3 | 1,999 | $2,520,000 | $1,261/ft² | October 2, 2025 | MLS |
| 36E (Apartment) | — | 1,300 | $1,700,000 | $1,308/ft² | October 2, 2025 | City record |
| 7H (Apartment) | 2 | 1,373 | $1,460,000 | $1,063/ft² | September 16, 2025 | City record · MLS |
| 7B (Apartment) | 1 | 791 | $935,000 | $1,182/ft² | August 22, 2025 | City record · MLS |
| 33G (Apartment) | 1 | 800 | $1,020,000 | $1,275/ft² | June 27, 2025 | City record · MLS |
| 31I (Apartment) | — | 1,273 | $1,495,000 | $1,174/ft² | June 18, 2025 | City record |
| 38E (Apartment) | 2 | 1,300 | $1,670,000 | $1,285/ft² | June 13, 2025 | City record · MLS |
| 38E (Apartment) | 2 | 1,300 | $1,670,000 | $1,285/ft² | June 13, 2025 | City record · MLS |
| 29E (Apartment) | 2 | 1,300 | $1,760,000 | $1,354/ft² | June 11, 2025 | City record · MLS |
| 40B (Apartment) | — | 791 | $1,100,000 | $1,391/ft² | June 9, 2025 | City record |
| 46B (Apartment) | — | 791 | $1,230,000 | $1,555/ft² | May 30, 2025 | City record |
| 16C (Apartment) | 1 | 832 | $955,000 | $1,148/ft² | May 23, 2025 | City record · MLS |
| 44A (Apartment) | 2 | 1,325 | $1,925,000 | $1,453/ft² | May 8, 2025 | City record · MLS |
| 23D (Apartment) | Studio | 698 | $825,000 | $1,182/ft² | April 17, 2025 | City record · MLS |
| 19C (Apartment) | 1 | 832 | $985,000 | $1,184/ft² | January 31, 2025 | City record · MLS |
| D3 (Apartment) | — | 1,076 | $1,300,000 | $1,208/ft² | November 12, 2024 | City record |
| 21B (Apartment) | 1 | 791 | $965,000 | $1,220/ft² | October 10, 2024 | City record · MLS |
| 10A (Apartment) | 2 | 1,325 | $1,475,000 | $1,113/ft² | September 18, 2024 | City record · MLS |
| 27E (Apartment) | 2 | 1,300 | $1,625,000 | $1,250/ft² | August 23, 2024 | City record · MLS |
| 30E (Apartment) | 2 | 1,300 | $1,620,000 | $1,246/ft² | July 11, 2024 | City record · MLS |
| 29I (Apartment) | 2 | 1,273 | $1,655,000 | $1,300/ft² | June 11, 2024 | City record · MLS |

Showing the 40 most recent of 66 recorded sales in this period.

Every row is a recorded transaction, including ancillary spaces such as storage and staff rooms where they were sold separately. Those are excluded from the benchmark below.

### How this price compares

- **This home**: $899,000
- **Median sold price**: $940,000
- **Difference**: -$41,000 (-4.4%)
- **This home, $/ft²**: $1,288
- **Median $/ft²**: $1,144
- **Comparable sales**: 4
- **Sales from**: May 2022 – August 2026
- **Middle half of those sales**: $903,750 – $951,250

Based on one-bedroom sales at William Beaver House.

### How these sales were negotiated

- **Sale-to-list price**: 95% (4 sales)
- **Sold below asking**: 100% (4 sales)
- **Typical time to find a buyer**: 112 days (4 sales)
- **Typical time to close**: 37 days (4 sales)

Based on one-bedroom sales at William Beaver House with the required listing and closing data. Sample sizes vary by metric.

These are two separate periods measured on different clocks — time to find a buyer, and time from agreed deal to closing. They are medians of different sets of sales and do not add together into a single "days on market" figure.

### Price trend

Median price per square foot, sales at William Beaver House

| Year | Median $/ft² | Sales |
| --- | --- | --- |
| 2016 | $1,563/ft² | 11 |
| 2017 | $1,429/ft² | 42 |
| 2018 | $1,430/ft² | 24 |
| 2019 | $1,311/ft² | 24 |
| 2020 | $1,263/ft² | 9 |
| 2021 | $1,171/ft² | 16 |
| 2022 | $1,281/ft² | 10 |
| 2023 | $1,228/ft² | 8 |
| 2024 | $1,233/ft² | 10 |
| 2025 | $1,253/ft² | 18 |
| 2026 YTD | $1,109/ft² | 8 |

Based on recorded sales at William Beaver House. 2026 is year-to-date.

Sales data through August 2026.

Sale prices are the consideration recorded with the City in ACRIS, and each sale is dated by the day the City recorded it. A closing date reported to the MLS typically falls one to two weeks earlier. Recorded sales describe what has already happened and are not an appraisal, a valuation, or an estimate of what this home will sell for.

[See every recorded sale at William Beaver House](https://realestaterebatesnewyork.com/buildings/new-york-city/manhattan/william-beaver-house)

## Price and Property History for 15 WILLIAM Street, Unit 21D

Review the recorded listing activity for 15 WILLIAM Street, Unit 21D, including asking-price changes and prior market dates.

- **Last sold (recorded)**: $935,000 on September 15, 2014

| Date | Price | Listing event |
| --- | --- | --- |
| September 28, 2026 | $899,000 | Listed for sale by Corcoran Group |
| September 15, 2014 | $935,000 | Sold — recorded sale price |
| September 13, 2013 | $990,000 | Asking price reduced by $5,000, or 0.5% |
| August 1, 2013 | $1,100,000 | Listed for sale by Elliman |

## About The Building

### William Beaver House

Financial District · Condominium

15 WILLIAM Street, New York, NY 10004

A building in Financial District, currently featuring 13 active listings.

- **Year Built**: 2007
- **Active Units**: 13
- **Floors**: 44

[View the building page](https://realestaterebatesnewyork.com/buildings/new-york-city/manhattan/william-beaver-house)

### Available Residences — For Sale (16)

| Unit | Beds | Baths | Size | Price / Ft² | Price | Listing Office | Listed Date | Days on Market |
| --- | --- | --- | --- | --- | --- | --- | --- | --- |
| [21D](https://realestaterebatesnewyork.com/buy/newyorkcity/manhattan/10005/15-william-street-21d-ny-10005) | 1 | 1 | 698 sqft | $1,288 | $899,000 | Corcoran Group | Sep 28, 2026 | 1 days |
| [12D](https://realestaterebatesnewyork.com/buy/newyorkcity/manhattan/10005/15-william-street-d-12D-ny-10005) | Studio | 1 | 698 sqft | $1,418 | $990,000 | Corcoran Group | Sep 18, 2024 | 741 days |
| [31C](https://realestaterebatesnewyork.com/buy/newyorkcity/manhattan/10005/15-william-street-c-31C-ny-10005) | 1 | 1 | 832 sqft | $1,550 | $1,290,000 (-0.8%) | Corcoran Group | Oct 29, 2024 | 700 days |
| [31G](https://realestaterebatesnewyork.com/buy/newyorkcity/manhattan/10005/15-william-street-31g-ny-10005) | 1 | 1 | 800 sqft | $1,375 | $1,100,000 (-8.3%) | Corcoran Group | Dec 2, 2024 | 666 days |
| [7D](https://realestaterebatesnewyork.com/buy/newyorkcity/manhattan/10004/15-william-street-7d-ny-10004) | Studio | 1 | 698 sqft | $1,182 | $825,000 | Serhant | Apr 6, 2026 | 176 days |
| [11-F](https://realestaterebatesnewyork.com/buy/newyorkcity/manhattan/10005/15-william-street-11f-ny-10005) | 1 | 1 | 812 sqft | $1,156 | $939,000 | AA Management NYC LLC | Aug 4, 2026 | 56 days |
| [39A](https://realestaterebatesnewyork.com/buy/newyorkcity/manhattan/10005/15-william-street-39a-ny-10005) | 2 | 2 | 1,325 sqft | $1,430 | $1,895,000 | Douglas Elliman Real Estate | Aug 31, 2026 | 29 days |
| [22H](https://realestaterebatesnewyork.com/buy/newyorkcity/manhattan/10004/15-william-street-22h-ny-10004) | 2 | 2 | 1,373 sqft | $1,235 | $1,695,000 | Keller Williams NYC | Sep 22, 2026 | 7 days |
| [25G](https://realestaterebatesnewyork.com/buy/newyorkcity/manhattan/10005/15-william-street-25g-ny-10005) | 1 | 1 | 800 sqft | $1,244 | $995,000 | Corcoran Group | Sep 28, 2026 | 1 days |
| [20B](https://realestaterebatesnewyork.com/buy/newyorkcity/manhattan/10005/15-william-street-20b-ny-10005) | 1 | 1 | 791 sqft | $1,302 | $1,030,000 | Corcoran Group | Sep 28, 2026 | 1 days |
| [37C](https://realestaterebatesnewyork.com/buy/newyorkcity/manhattan/10005/15-william-street-37c-ny-10005) | 1 | 1 | 832 sqft | $1,442 | $1,200,000 | Corcoran Group | Sep 28, 2026 | 1 days |
| [28G](https://realestaterebatesnewyork.com/buy/newyorkcity/manhattan/10005/15-william-street-28g-ny-10005) | 1 | 1 | 800 sqft | $1,438 | $1,150,000 | Corcoran Group | Sep 28, 2026 | 1 days |
| [20A](https://realestaterebatesnewyork.com/buy/newyorkcity/manhattan/10005/15-william-street-20a-ny-10005) | 2 | 2 | 1,325 sqft | $1,245 | $1,650,000 | Corcoran Group | Sep 28, 2026 | 1 days |
| [27A](https://realestaterebatesnewyork.com/buy/newyorkcity/manhattan/10004/15-william-street-a-27A-ny-10004) | 2 | 2 | 1,325 sqft | $1,245 | $1,650,000 — In contract | Brown Harris Stevens Residential Sales LLC | Sep 24, 2025 | 370 days |
| [17E](https://realestaterebatesnewyork.com/buy/newyorkcity/manhattan/10005/15-william-street-17e-ny-10005) | 2 | 2 | 1,300 sqft | $1,273 | $1,655,000 (-2.1%) — In contract | Sothebys International Realty | Apr 14, 2026 | 168 days |
| [10-H](https://realestaterebatesnewyork.com/buy/newyorkcity/manhattan/10005/15-william-street-10h-ny-10005) | 2 | 2 | 1,373 sqft | $1,089 | $1,495,000 — In contract | AA Management NYC LLC | Jun 18, 2026 | 103 days |

### Recently Sold (2)

| Unit | Beds | Baths | Size | Price / Ft² | Sold Price | Listing Office | Listed Date | Sold Date |
| --- | --- | --- | --- | --- | --- | --- | --- | --- |
| [14C](https://realestaterebatesnewyork.com/buy/newyorkcity/manhattan/10005/15-william-street-c-14C-ny-10005) | 1 | 1 | 832 sqft | $1,142 | $950,000 | I&A REALTY GROUP LLC | Apr 22, 2026 | Jul 21, 2026 |
| [15C](https://realestaterebatesnewyork.com/buy/newyorkcity/manhattan/10005/15-william-street-15c-ny-10005) | 1 | 1 | 832 sqft | $1,148 | $955,000 | Compass | Apr 23, 2026 | Aug 17, 2026 |

## Financial District

Manhattan's Historic Power Center

[Explore Financial District](https://realestaterebatesnewyork.com/neighborhoods/new-york-city/manhattan/financial-district) · [All Neighborhoods](https://realestaterebatesnewyork.com/neighborhoods)

### Nearby Financial District

- [Battery Park City real estate for sale](https://realestaterebatesnewyork.com/neighborhoods/new-york-city/manhattan/battery-park-city)
- [Civic Center real estate for sale](https://realestaterebatesnewyork.com/neighborhoods/new-york-city/manhattan/civic-center)
- [Two Bridges real estate for sale](https://realestaterebatesnewyork.com/neighborhoods/new-york-city/manhattan/two-bridges)
- [Tribeca real estate for sale](https://realestaterebatesnewyork.com/neighborhoods/new-york-city/manhattan/tribeca)
- [Chinatown real estate for sale](https://realestaterebatesnewyork.com/neighborhoods/new-york-city/manhattan/chinatown)
- [Little Italy real estate for sale](https://realestaterebatesnewyork.com/neighborhoods/new-york-city/manhattan/little-italy)

## Related Links

- [William Beaver House — building page](https://realestaterebatesnewyork.com/buildings/new-york-city/manhattan/william-beaver-house)
- [Financial District neighborhood guide](https://realestaterebatesnewyork.com/neighborhoods/new-york-city/manhattan/financial-district)
- [Estimate your Buyer Commission Share and closing costs](https://realestaterebatesnewyork.com/calculators/buyer-closing-cost-calculator)
- [Contact Régis Roumila](https://realestaterebatesnewyork.com/contact)

---

> 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.