284 Warren Street
284 Warren Street, between Court and Smith streets, Cobble Hill
Cobble Hill, Brooklyn
BBL 3003967503 · BIN 3391799
- Type
- Condominium
- Amenities
- Private outdoor space in the garden and penthouse homes; central air conditioning
- Landmark status
- Not an individual landmark; not in a historic district
- NYC Landmarks Preservation Commission and City Planning records, updated February 2026
Every recorded sale at this building, 2006–2026
Price-per-square-foot over time, the line- and floor-premium curves, and every recorded sale.
- Median $/sf, 2026 to date
- $1,815
- 1 sale
- Listing discount
- -4.0%
- Recorded sales
- 10
- On record
- 2006–2026
Own an apartment here? See what it would sell for.
A Private Pricing Opinion — what your apartment at 284 Warren Street would likely sell for today, what it costs to sell, and what you’d walk away with — reviewed personally against condition, exposures, renovation quality, and the competition actually on the market.
About the building
284 Warren Street is an older brick townhouse converted to four condominiums in 2007. Misha Saradoff handled the alteration filing, which retained four dwellings within the four-story structure. DOB signed off the renovation in November 2007, following acceptance of the condominium filing that April. The conversion established separate ownership of the residential floors while keeping the building's narrow townhouse form. Its entrance is on the stretch of Warren Street between Court and Smith streets.
The layouts include a garden duplex at the base, smaller single-level homes in the middle and a penthouse duplex above. The lower home extends to a landscaped rear patio and has approximately 1,550 square feet across its two levels. The middle residences have more compact floor plates of about 870 square feet. The penthouse combines two bedrooms with additional loft or office space and private roof access. Internal stairs occupy part of both duplex configurations, while the central apartments keep their rooms on one level.
Local Law 97
This building is below the 25,000 sq ft threshold at which LL97 limits apply to a building on its own. It is still covered if it shares a tax lot or condominium board with buildings totaling over 50,000 sq ft; confirm on DOB’s covered-buildings list.
See full Local Law 97 analysis →Recent sales
Recent closings at this building, from The Roebling Research Library. Prices are the transfer amounts recorded with the NYC Department of Finance; apartment-level detail is checked against the building’s own file in The Roebling Research Library before publishing.
| Date | Unit | Apartment | Price | PPSF | vs. Ask |
|---|---|---|---|---|---|
| Jul 31, 2026 | 4 | 3 BR · 1.5 BA · 1,300 sf | $2,360,000 | $1,815/sf | +18.3% |
| Jun 20, 2019 | 1 | 3 BR · 2 BA · 1,556 sf | $2,125,000 | $1,366/sf | -3.4% |
| Jan 29, 2008 | 4 | 2 BR · 1,053 sf | $1,170,987 | $1,112/sf | — |
| Dec 21, 2007 | 2 | 868 sf | $809,508 | $933/sf | — |
| Nov 30, 2007 | 1 | 3 BR · 1,556 sf | $1,272,812 | $818/sf | — |
| Nov 30, 2007 | 3 | 2 BR · 868 sf | $911,333 | $1,050/sf | — |
Market read. Most recent trades (2026 to date) cleared a median $1,815/sf (recorded) across 1 sale. Median listing discount -4.0% over ask.
The retrade record
Lines that have traded more than once in the public record — the building’s appreciation arc, apartment by apartment.
Full closing history with price-per-square-foot over time, the complete retrade record, and every line that has traded.
Sales sourced from NYC Department of Finance recorded transfers (BBL 3-00396-7503; each condominium apartment is its own tax lot). Apartment-level facts (line, condition, asking-price context) curated and cross-verified in The Roebling Research Library. Not all transactions cross-verify with ACRIS records — sponsor and LLC purchases sometimes record at stipulated values rather than market price; square footage from recorded condo declarations and offering plans.
What would your apartment rent for?
Enter your apartment and I'll send you what it would rent for, from comparable closed leases at 284 Warren Street and nearby.
Buying here? Condo closing costs with a mortgage typically run 3 to 6% of the price. See NYC co-op and condo closing costs, line by line.
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What to know if you’re buying
The townhouse's four condominium units fund its common repairs in the shares set by the declaration, with private outdoor areas at both the base and roof. The division of roof waterproofing and private deck expenses matters particularly here because only the penthouse has direct roof access. A lender may also apply additional project review to an association this small.
Comparable buildings
- 47 Dean Street — a larger nearby condominium from the same development period.
- The Westcott — an older-building condominium with more residences supporting shared operations.
- 361 Clinton Street — a low-rise condominium alternative with a larger association.
- The Govley — a more recent boutique condominium for comparing contemporary construction with a townhouse conversion.
More Cobble Hill buildings
- 251 Pacific Street — 1914 co-op
- 263 Clinton Street — 1855 co-op
- 275 Degraw Street — 1848 co-op
- 301 DeGraw Street — condominium
- 301 Warren Street — 2002 condominium
- 303 Warren Street — 2002 condominium
The neighborhood
For the full neighborhood — its buildings, character, and market — read The Roebling Team Guide to Cobble Hill.
How to read the facts on this page. Items attributed to an offering plan describe the building as it was offered at that filing — unit mix, square footage, the amenity program as planned. They are not a statement about how the building operates today. Tax and compliance figures are sourced separately to current City records and carry their own dates. House rules, staffing and fee policy can change by board resolution without any public filing: treat every policy line here as a starting point for diligence and confirm it with the managing agent. Where this page compares one building or neighborhood to another, that is our analysis of the recorded record — it names the measure, the period and the sample it rests on, and it is an observation about medians rather than a prediction about any particular apartment.
Considering a move at 284 Warren Street?
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646.939.7375 · c.cohen@compass.com