---
title: "15 WILLIAM Street #31C, New York City, NY 10005"
description: "15 WILLIAM Street #31C, New York City, NY 10005 — Financial District, New York City, NY. Listing Price $1,290,000. 1 bed, 1 bath, 832 sqft Illustrative Buyer Commission Share of $19,350 at closing, based on a 3% buyer-broker commission."
url: "https://realestaterebatesnewyork.com/buy/newyorkcity/manhattan/10005/15-william-street-c-31C-ny-10005"
source: "Real Estate Rebate Team"
status: "Active"
---

# 15 WILLIAM Street #31C, New York City, NY 10005

Financial District, New York City, NY

Courtesy of Corcoran Group

## At a Glance

- **Listing Price**: $1,290,000
- **Beds**: 1
- **Baths**: 1
- **Sqft**: 832
- **Common Charges**: $1,107 / mo
- **Price per Sqft**: $1,550
- **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**: $1,290,000
- **Illustrative Buyer Commission Share**: -$19,350*
- **Illustrative Net Cost**: $1,270,650

*Illustrative Buyer Savings of $19,350 — 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 #31C, New York City, NY 10005 — photo 1 of 6](https://realestaterebatesnewyork-bucket.nyc3.cdn.digitaloceanspaces.com/3ab242f9-ed56-4041-85b7-28bb1fcf2e94.jpg)
![15 WILLIAM Street #31C, New York City, NY 10005 — photo 2 of 6](https://realestaterebatesnewyork-bucket.nyc3.cdn.digitaloceanspaces.com/0f26300e-dfab-4a8f-b77f-a79409a075f7.jpg)
![15 WILLIAM Street #31C, New York City, NY 10005 — photo 3 of 6](https://realestaterebatesnewyork-bucket.nyc3.cdn.digitaloceanspaces.com/e7e8a360-ccfd-444b-a46f-cca1fb4b35ad.jpg)
![15 WILLIAM Street #31C, New York City, NY 10005 — photo 4 of 6](https://realestaterebatesnewyork-bucket.nyc3.cdn.digitaloceanspaces.com/7cdf5578-24e3-4828-825b-4b5ec2b7f3a8.jpg)
![15 WILLIAM Street #31C, New York City, NY 10005 — photo 5 of 6](https://realestaterebatesnewyork-bucket.nyc3.cdn.digitaloceanspaces.com/ad2fae2c-f499-4abb-942b-54e9c120ee1d.jpg)
![15 WILLIAM Street #31C, New York City, NY 10005 — photo 6 of 6](https://realestaterebatesnewyork-bucket.nyc3.cdn.digitaloceanspaces.com/0a76c579-af3d-4227-8cd5-8112fb4591a3.jpg)

## Property Overview

Introducing a remarkable 1-bedroom, 1-bathroom condo in the heart of Manhattan, NY, at 15 William St. This high-rise gem offers 832 square feet of exquisite living space and stunning river views with southern exposure.
 Upon entering, you'll be captivated by the sleek hardwood floors and the abundance of natural light. The common kitchen is perfect for culinary enthusiasts, while the walk-in closet in the bedroom provides ample storage space.
 The bathroom features a luxurious soaking tub, creating a spa-like retreat within the comfort of your own home. For ultimate convenience, a washer/dryer unit is included.
 The building's amenities are unrivaled, including a hot tub, pool, sauna, and steam room. Residents can enjoy the common roof deck and terrace, offering a serene outdoor escape in the midst of the city.
 Fitness and recreation enthusiasts will appreciate the basketball court, gym, health club, racquetball, and yoga studio. Additionally, the building provides a pet spa, playroom, resident's lounge, and screening room for entertainment and relaxation.
 Service is paramount, with a concierge and full-time doorman ensuring residents" needs are met with the utmost care and attention. This condo also offers valet parking and ample storage options.
 Experience the epitome of luxury living in this meticulously designed condo. Don't miss the opportunity to make this your new home!

## Property Details

- **Property Type**: Condominium
- **Beds**: 1
- **Baths**: 1
- **Rooms**: 3
- **Sqft**: 832 sqft
- **Stories**: 47
- **Year Built**: 2005
- **Price per Sqft**: $1,550
- **Common Charges**: $1,107 / Monthly
- **Listed On**: Oct 29, 2024
- **Days on Market**: 684 Days

### Residence Features

- Central Air
- Building Other
- Washer Hookup
- In Unit
- Building Courtyard
- Building Roof Deck
- Walk-In Closet(s)
- Dishwasher
- River

### Building Amenities

- Sauna

## Sales Evidence

### Recent closed sales

68 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 68 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

The median closed price for comparable one-bedroom sales at William Beaver House is $940,000, based on 4 sales between May 2022 and August 2026. This home is asking $1,290,000, $350,000 above that median. The middle half of those sales closed between $903,750 and $951,250.

- **Median closed price**: $940,000
- **Middle half**: $903,750 – $951,250
- **Based on**: 4 one-bedroom sales at William Beaver House
- **Period**: May 2022 – August 2026
- **Median $/ft²**: $1,144/ft²

Across the 4 of these sales with a published asking price, the median closed at 95% of what it originally asked. 100% of them closed below the original ask.

### How these sales were negotiated

- **Sold vs original ask**: 95% of the original ask
- **Closed below ask**: 100% of 4 sales
- **Listed → in contract**: 118 days (about 17 weeks)
- **In contract → closed**: 42 days (about 6 weeks)

Across the 4 of these sales with a published asking price, the median closed at 95% of what it originally asked. 100% of them closed below the original ask.

Half of these homes were in contract within 118 days (about 17 weeks) of coming to market, based on the 3 with a recorded listing date.

Once a deal was agreed, closing took a further 42 days (about 6 weeks), based on the 3 with both dates recorded.

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.

Based on 4 one-bedroom sales at William Beaver House, May 2022 – August 2026. Each figure counts only the sales that recorded the dates it needs, which is why the denominators differ.

### Price trend

Median price per square foot for sales at William Beaver House, 2016 to 2026. Price per square foot is used rather than sale price so the line follows the market rather than whichever apartments happened to change hands that year.

| Year | Median $/ft² | Sales |
| --- | --- | --- |
| 2016 | $1,563/ft² | 13 |
| 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 | $1,109/ft² | 8 |

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 31C

Review the recorded listing activity for 15 WILLIAM Street, Unit 31C, including asking-price changes and prior market dates.

- **Latest price change**: Reduced by $10,000, or 0.8%, on October 29, 2024
- **Originally listed**: September 18, 2024 at $1,300,000
- **Current asking price**: $1,290,000

| Date | Price | Listing event |
| --- | --- | --- |
| October 29, 2024 | $1,290,000 | Asking price reduced by $10,000, or 0.8% |
| September 18, 2024 | $1,300,000 | Listed for sale by Corcoran Group |

## Property Tax History

Taxes at 15 WILLIAM Street #31C were $19,692 in 2026, down 1.1% from 2025.

| Year | Tax Assessment | Land | Additions | Billable Value | Property Tax | Tax Rate |
| --- | --- | --- | --- | --- | --- | --- |
| 2026 (FY 2026/27) | $158,931 | $6,122 | $152,809 | $157,537 | $19,692 | 12.5% (estimated) |
| 2025 (FY 2025/26) | $175,267 | $6,122 | $169,145 | $159,314 | $19,914 | 12.5% (estimated) |
| 2024 (FY 2024/25) | $164,856 | $6,122 | $158,734 | $159,725 | $19,966 | 12.5% |
| 2023 (FY 2023/24) | $157,620 | $6,122 | $151,498 | $157,620 | $19,706 | 12.502% |
| 2022 (FY 2022/23) | $157,447 | $6,122 | $151,325 | $157,447 | $19,314 | 12.267% |
| 2021 (FY 2021/22) | $151,253 | $6,122 | $145,131 | $151,253 | $18,506 | 12.235% |
| 2020 (FY 2020/21) | $167,456 | $6,122 | $161,334 | $155,616 | $19,089 | 12.267% |
| 2019 (FY 2019/20) | $163,692 | $6,122 | $157,570 | $146,923 | $18,326 | 12.473% |
| 2018 (FY 2018/19) | $156,141 | $6,122 | $150,019 | $137,715 | $14,030 | 12.612% |
| 2017 (FY 2017/18) | $154,470 | $6,123 | $148,347 | $130,524 | $13,417 | 12.719% |
| 2016 (FY 2016/17) | $136,333 | $6,122 | $130,211 | $123,593 | $9,836 | 12.892% |
| 2015 (FY 2015/16) | $123,988 | $6,123 | $117,865 | $120,798 | $9,614 | 12.883% |
| 2014 (FY 2014/15) | $117,657 | $6,123 | $111,534 | $117,608 | $6,461 | 12.855% |
| 2013 (FY 2013/14) | $120,173 | $6,123 | $114,050 | $115,284 | $6,484 | 13.145% |
| 2012 (FY 2012/13) | $119,826 | $6,123 | $113,703 | $111,456 | $3,503 | 13.181% |
| 2011 (FY 2011/12) | $122,351 | $6,123 | $116,228 | $107,699 | $3,469 | 13.433% |
| 2010 (FY 2010/11) | $108,046 | $6,121 | $101,925 | $103,435 | $715 | 13.353% |

The City has not published the official FY2026/27 and FY2025/26 tax rates yet. We calculated the tax for those years using the prior year’s rate, so treat them as an estimate rather than a figure the City has adopted. Every rate without the Estimated marker is the published one.

Tax Assessment is the assessed value on the City’s roll, and it is the figure other listing sites publish. It is not what the bill is calculated on. New York phases assessment changes in gradually for some tax classes, so the City bills the Billable Value shown beside it, less any exemption the owner holds. It usually trails the assessment, and it can sit above it for a few years after an assessment falls.

Figures are the New York City Department of Finance assessment roll for tax lot 1000251598. Assessed and billable values are determined by the City for tax purposes and are not an appraisal or an estimate of market value. Tax classes and rates are set annually and can change.

[How we source and calculate NYC property tax data](https://realestaterebatesnewyork.com/nyc-property-tax-data-methodology)

## About The Building

### William Beaver House

Financial District · Condominium

15 WILLIAM Street, New York, NY 10004

A building in Financial District, currently featuring 11 active listings.

- **Year Built**: 2005
- **Total Units**: 11
- **Floors**: 47

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

### Available Residences — For Sale (11)

| Unit | Beds | Baths | Size | Price / Ft² | Price | Listing Office | Listed Date | Days on Market |
| --- | --- | --- | --- | --- | --- | --- | --- | --- |
| [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 | 684 days |
| [30A](https://realestaterebatesnewyork.com/buy/newyorkcity/manhattan/10005/15-william-street-a-30A-ny-10005) | 2 | 2 | 1,325 sqft | $1,366 | $1,810,000 (-2.7%) | Corcoran Group | Oct 29, 2024 | 684 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 | 725 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 | 650 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 | 354 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 | 160 days |
| [14C](https://realestaterebatesnewyork.com/buy/newyorkcity/manhattan/10005/15-william-street-c-14C-ny-10005) | 1 | 1 | 832 sqft | $1,201 | $999,000 | I&A REALTY GROUP LLC | Apr 22, 2026 | 144 days |
| [15C](https://realestaterebatesnewyork.com/buy/newyorkcity/manhattan/10005/15-william-street-15c-ny-10005) | 1 | 1 | 832 sqft | $1,148 | $955,000 (-4.0%) | Compass | Apr 23, 2026 | 143 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 | 87 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 | 40 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 | 13 days |

## Estimated Monthly Payment

**$7,630 / month**, assuming a 20% down payment ($258,000), a 6.5% interest rate and a 30-year term. The page's calculator lets a buyer change all three.

- **Principal & Interest**: $6,523
- **Common Charges**: $1,107

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

## 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.