90 William Street #4G, New York City, NY 10038
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From $925,000 on
Regis Roumila
Verified Member: REBNY · NAR
NYDOS LIC#: 10491211335
Property Overview
Property Details
Residence Features
Estimated Monthly Payment
Estimates only. Actual payments may vary. Confirm terms with your lender.
Sales and market data
Recent sales
25 apartments at Be@William have recorded sales since October 2021, the most recent for $1,071,500 in September 2026. Prices are the figures recorded with the City, not asking prices.
| 6BApartment | 2 | 1,186 | $1,071,500 | $903/ft² | September 15, 2026MLS |
|---|---|---|---|---|---|
| PHAApartment | 2 | 1,406 | $1,695,000 | $1,206/ft² | April 3, 2026City record · MLS |
| 11FApartment | 1 | 845 | $743,000 | $879/ft² | September 8, 2025City record |
| 4AApartment | 2 | 1,156 | $1,250,000 | $1,081/ft² | May 7, 2025City record · MLS |
| 3FApartment | Studio | 845 | $768,000 | $909/ft² | December 5, 2024City record · MLS |
| 15GApartment | 1 | 1,080 | $1,060,000 | $981/ft² | July 22, 2024City record · MLS |
| 7DApartment | 1 | 849 | $710,000 | $836/ft² | June 10, 2024City record · MLS |
| 16GApartment | 2 | 1,080 | $1,050,000 | $972/ft² | May 30, 2024City record · MLS |
| 16-BApartment | 2 | 1,186 | $1,325,000 | $1,117/ft² | July 11, 2023City record · MLS |
| 14DLoft | 1 | 845 | $725,000 | $858/ft² | December 1, 2022City record · MLS |
| 16HApartment | Bedroom count not recorded | 1,096 | $1,075,000 | $981/ft² | November 28, 2022City record |
| 11-FApartment | 1 | 850 | $720,000 | $847/ft² | November 9, 2022City record · MLS |
| 11AApartment | 2 | 1,156 | $1,205,000 | $1,042/ft² | September 20, 2022City record · MLS |
| 16CApartment | 2 | 1,072 | $1,140,000 | $1,063/ft² | August 31, 2022City record |
| 3BApartment | 2 | 1,186 | $1,285,000 | $1,083/ft² | August 24, 2022City record |
| 3CApartment | 2 | 1,072 | $581,873 | $543/ft² | August 4, 2022City record |
| 11EApartment | Bedroom count not recorded | 640 | $645,000 | $1,008/ft² | June 22, 2022City record |
| 4AApartment | 2 | 1,156 | $1,445,000 | $1,250/ft² | June 21, 2022City record |
| 4AApartment | 2 | 1,156 | $1,445,000 | $1,250/ft² | June 21, 2022City record · MLS |
| 15-EApartment | 1 | 640 | $720,000 | $1,125/ft² | June 1, 2022City record · MLS |
| 10-HApartment | 2 | 1,106 | $1,025,000 | $927/ft² | May 19, 2022City record · MLS |
| 10GApartment | 2 | 1,080 | $1,125,000 | $1,042/ft² | February 28, 2022City record · MLS |
| 8CApartment | 1 | 1,072 | $1,040,000 | $970/ft² | January 20, 2022City record · MLS |
| 14GApartment | 2 | 1,080 | $1,035,000 | $958/ft² | November 19, 2021City record · MLS |
| 10DApartment | Bedroom count not recorded | 845 | $855,000 | $1,012/ft² | November 4, 2021City record |
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
- $725,000
- Difference
- +$174,000 (+24%)
- This home, $/ft²
- $832
- Median $/ft²
- $879
- Comparable sales
- 7
- Sales from
- Jan 2022 – Sep 2025
Based on one-bedroom sales at Be@William.
More market data
- Middle half of those sales
- $720,000 – $891,500
How these sales were negotiated
- Sale-to-list price
- 89.1%
- Sold below asking
- 100%
- Typical time to find a buyer
- 116 days
- Typical time to close
- 57 days
Based on one-bedroom sales at Be@William with the required listing and closing data. Sample sizes vary by metric.
Price trend
Median price per square foot, sales at Be@William
| Year | Median $/ft² | Sales |
|---|---|---|
| 2019 | $1,002/ft² | 4Thin |
| 2020 | $933/ft² | 4Thin |
| 2021 | $985/ft² | 6 |
| 2022 | $1,025/ft² | 14 |
| 2024 | $941/ft² | 4Thin |
More market history
| Year | Median $/ft² | Sales |
|---|---|---|
| 2017 | $1,203/ft² | 6 |
| 2018 | $1,180/ft² | 3Thin |
Based on recorded sales at Be@William.
Years marked "thin" rest on fewer than 5 sales, where a single unusual apartment moves the median a long way. Read those points as the small samples they are rather than as the market turning.
Sales data through September 2026.
Sale prices and dates are based on NYC ACRIS records. MLS closing dates may differ. Historical sales are not an appraisal or valuation of this property.
Price and Property History for 90 William Street, Unit 4G
Review the recorded listing activity for 90 William Street, Unit 4G, including asking-price changes and prior market dates.
- Latest price change
- Reduced by $26,000, or 2.8%, on July 1, 2026
- Originally listed
- November 20, 2025 at $1,075,000
- Current asking price
- $899,000
- Last sold (recorded)
- $990,000 on May 14, 2014
| Date | Price | Listing event |
|---|---|---|
| $899,000 | Asking price reduced by $26,000, or 2.8% | |
| $1,075,000 | Listed for sale by Keller Williams NYC | |
| $990,000 | Sold — recorded sale price | |
| $1,085,000 | Asking price increased by $60,000, or 5.9% | |
| $995,000 | Listed for sale by Elliman |
Property Tax History
Taxes at 90 William Street #4G were $18,450 in 2026, up 5.6% from 2025.
| Year | Tax Assessment | Land | Additions | Billable Value | Property Tax | Tax Rate |
|---|---|---|---|---|---|---|
| 2026FY 2026/27 | $168,818 | $29,297 | $139,521 | $147,598 | $18,450 | 12.5%Estimated |
| 2025FY 2025/26 | $156,638 | $29,297 | $127,341 | $139,715 | $17,464 | 12.5%Estimated |
| 2024FY 2024/25 | $147,335 | $29,297 | $118,038 | $139,517 | $17,440 | 12.5% |
| 2023FY 2023/24 | $141,599 | $29,297 | $112,302 | $139,910 | $17,492 | 12.502% |
| 2022FY 2022/23 | $137,900 | $29,297 | $108,603 | $137,900 | $10,860after $6,056 abatement | 12.267% |
| 2021FY 2021/22 | $137,900 | $29,297 | $108,603 | $137,900 | $4,760after $12,112 abatement | 12.235% |
| 2020FY 2020/21 | $152,736 | $29,297 | $123,439 | $143,212 | $16,098 | 12.267% |
| 2019FY 2019/20 | $149,303 | $29,297 | $120,006 | $137,808 | $14,201 | 12.473% |
| 2018FY 2018/19 | $144,086 | $29,296 | $114,790 | $132,585 | $12,190 | 12.612% |
| 2017FY 2017/18 | $168,362 | $29,297 | $139,065 | $135,471 | $11,137 | 12.719% |
| 2016FY 2016/17 | $141,862 | $29,297 | $112,565 | $123,440 | $8,193 | 12.892% |
| 2015FY 2015/16 | $140,687 | $29,297 | $111,390 | $119,698 | $7,705 | 12.883% |
| 2014FY 2014/15 | $123,197 | $29,296 | $93,901 | $114,490 | $7,019 | 12.855% |
| 2013FY 2013/14 | $118,246 | $29,297 | $88,949 | $113,210 | $7,009 | 13.145% |
| 2012FY 2012/13 | $116,846 | $29,297 | $87,549 | $116,494 | $7,461 | 13.181% |
| 2011FY 2011/12 | $116,629 | $29,297 | $87,332 | $118,263 | $7,841 | 13.433% |
| 2010FY 2010/11 | $114,897 | $30,779 | $84,118 | $117,604 | $7,707 | 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.
Where an abatement applies, Property Tax is the amount owed after it. Abatements are granted to the property and do not necessarily transfer to a new owner.
Figures are the New York City Department of Finance assessment roll for tax lot 1000681290. 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.
About The Building
Be@William
90 William Street, New York, NY 10038
A building in Financial District, currently featuring 3 active listings.
Interested in Be@William?
Consult Régis for private buyer guidance, off-market opportunities, building financials, board package requirements, closing costs, and potential Buyer Savings.
In the Neighborhood
Nearby Schools
* Distances are approximate line-of-sight metrics.
Map
Financial District
Manhattan's Historic Power Center
The Financial District (FiDi) is where New York began. Narrow, winding colonial streets meet soaring glass skyscrapers.
Real Estate & Housing Market
Office-to-residential conversions are the norm. High ceilngs, thick walls, and modern amenities in historic buildings.
Lifestyle & Community
Fast-paced by day, quieter by night (though changing). Stone Street offers a lively cobblestone drinking scene.
Transportation & Accessibility
The best connective tissue in NYC. Fulton Center and WTC Oculus connect virtually every subway line and PATH.
Parks, Schools & Amenities
The Battery offers waterfront green space. Eataly, iPic Theater, and South Street Seaport provide leisure.
Who This Neighborhood Is Best For
Best for Wall Street workers, efficiency lovers, and those wanting luxury value.
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.