284 WARREN Street #4, New York City, NY 11201
Regis Roumila
Verified Member: REBNY · NAR
NYDOS LIC#: 10491211335
Property Overview
Welcome home to the Penthouse at 284 Warren, a beautifully renovated, sun-drenched legal 2-bedroom duplex with a versatile home office or third bedroom, set on one of Cobble Hill's most picturesque tree-lined streets. The spacious layout and private roof deck patio offer a truly special living experience, complete with breathtaking skyline views.
As you enter through the foyer, you're greeted by an open kitchen featuring quartz countertops, new stainless steel appliances, and custom wood cabinetry providing ample storage. A large peninsula offers the perfect setup for a breakfast ba...
Property Details
Residence Features
Estimated Monthly Payment
Estimates only. Actual payments may vary. Confirm terms with your lender.
Sales and market data
Recent sales
2 apartments at 284 WARREN Street have recorded sales since September 2021, the most recent for $2,360,000 in July 2026. Prices are the figures recorded with the City, not asking prices.
| 4Duplex | 3 | $2,360,000 | July 31, 2026City record · MLS |
|---|---|---|---|
| 5Apartment | 2 | $1,510,000 | May 3, 2023City record · MLS |
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
- Last sold price
- $2,360,000
- Median sold price
- $3,075,000
- Difference
- -$715,000 (-23.3%)
- Median $/ft²
- $1,943
- Comparable sales
- 8
- Sales from
- Sep 2024 – Jul 2026
Based on condo three-bedroom sales in Cobble Hill.
More market data
- Middle half of those sales
- $2,523,125 – $3,773,750
This building has not had enough comparable sales of its own in the period to support a median, so the benchmark is drawn from Cobble Hill instead.
How these sales were negotiated
- Sale-to-list price
- 93.9%
- Sold below asking
- 86%
- Typical time to find a buyer
- 112 days
- Typical time to close
- 60 days
Based on condo three-bedroom sales in Cobble Hill with the required listing and closing data. Sample sizes vary by metric.
Sales data through July 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 284 WARREN Street, Unit 4
Review the recorded listing activity for 284 WARREN Street, Unit 4, including asking-price changes and prior market dates.
- Latest price change
- Increased by $365,000, or 18.3%, on July 31, 2026
- Originally listed
- April 8, 2026 at $1,995,000
- Last sold (recorded)
- $2,360,000 on July 31, 2026
| Date | Price | Listing event |
|---|---|---|
| $2,360,000 | Sold — recorded sale price | |
| $2,360,000 | Asking price increased by $365,000, or 18.3% | |
| $2,360,000 | Entered contract | |
| $1,995,000 | Listed for sale by Serhant | |
| No recorded price | Sold | |
| $1,250,000 | Listed for sale by Brown Harris Stevens Residential Sales LLC |
Property Tax History
Taxes at 284 WARREN Street #4 were $6,729 in 2026, up 16.8% from 2025.
| Year | Tax Assessment | Land | Additions | Billable Value | Property Tax | Tax Rate |
|---|---|---|---|---|---|---|
| 2026FY 2026/27 | $299,592 | $25,920 | $273,672 | $53,830 | $6,729 | 12.5%Estimated |
| 2025FY 2025/26 | $258,444 | $25,920 | $232,524 | $51,718 | $5,761 | 12.5%Estimated |
| 2024FY 2024/25 | $305,597 | $25,920 | $279,677 | $51,717 | $5,056 | 12.5% |
| 2023FY 2023/24 | $254,664 | $25,920 | $228,744 | $48,296 | $4,091 | 12.502% |
| 2022FY 2022/23 | $250,236 | $25,920 | $224,316 | $44,720 | $0after $4,300 abatement | 12.267% |
| 2021FY 2021/22 | $275,508 | $25,920 | $249,588 | $41,408 | $0after $5,376 abatement | 12.235% |
| 2020FY 2020/21 | $268,272 | $25,920 | $242,352 | $39,783 | $2,205 | 12.267% |
| 2019FY 2019/20 | $223,560 | $25,920 | $197,640 | $39,782 | $2,296 | 12.473% |
| 2018FY 2018/19 | $37,151 | Not published | Not published | $37,151 | $4,685 | 12.612% |
| 2017FY 2017/18 | $34,400 | Not published | Not published | $34,400 | $4,375 | 12.719% |
| 2016FY 2016/17 | $31,852 | Not published | Not published | $31,852 | $4,106 | 12.892% |
| 2015FY 2015/16 | $30,602 | Not published | Not published | $30,602 | $3,942 | 12.883% |
| 2014FY 2014/15 | $30,602 | Not published | Not published | $30,602 | $3,934 | 12.855% |
| 2013FY 2013/14 | $28,578 | Not published | Not published | $28,578 | $3,757 | 13.145% |
| 2012FY 2012/13 | $26,462 | Not published | Not published | $26,462 | $3,488 | 13.181% |
| 2011FY 2011/12 | $24,502 | Not published | Not published | $24,502 | $3,291 | 13.433% |
| 2010FY 2010/11 | $23,540 | Not published | Not published | $23,540 | $3,143 | 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 3003961204. 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
284 WARREN Street
284 WARREN Street, Brooklyn, NY 11201
A building in the neighborhood, currently featuring 0 active listings.
Interested in 284 WARREN Street?
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Available Residences
| 4 | 3 | 2 | — | — | $2,360,000 | Apr 8, 2026 | Jul 31, 2026 |
In the Neighborhood
Nearby Schools
* Distances are approximate line-of-sight metrics.
Map
Cobble Hill
Overview of Cobble Hill
Cobble Hill is charming and exclusive. For buyers seeking Cobble Hill Brooklyn real estate, it offers village vibes. Living in Cobble Hill is picturesque. As a Brooklyn NYC neighborhood, it is highly desired.Real Estate
Homes for sale in Cobble Hill are pristine brownstones.Lifestyle
The lifestyle is refined.Transportation
F/G trains.Amenities
Cobble Hill Park.Best For
Wealthy families.
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.