230 Duffield Street
Brooklyn · 11201 · BBL 3001450033 · look up another building
Most recent filing on this building: a violation, September 13, 2026
230 Duffield Street is a public facility or institution in Brooklyn Heights, Brooklyn, ZIP 11201. City records date it to 1920 and count 50 apartments, inside 51 units in all. The city's property file lists the owner of record as SERVICES/UNDERSERVED MENTAL HLTH PROGRAM. Its total assessed value is $923K, for the 2026 tax year.
No DHCR registration is on file for this address, which is a gap in the record rather than an answer about your apartment. The state will send you your own rent history free, and it is the only binding answer on what you should be paying.
Know the month this building changes
Most buildings here are quiet. Two filings a year is normal, so most months there's nothing to report on 230 Duffield Street and we'll say so. The point is the month we do
Taxes and assessed value for 230 Duffield Street
The city's Department of Finance assessed this lot at $923K for the 2026 tax year. That works out to $18K per residential unit. Assessed value is what the city taxes, not what the building would sell for, and the two routinely differ by a wide margin. The bill itself turns on the tax class rate and on any exemptions or abatements attached to the lot, neither of which is published here.
No executed evictions at 230 Duffield Street
No executed eviction is on record at 230 Duffield Street in the citywide marshal file, which runs from April 2024.
Rent stabilization at 230 Duffield Street
No DHCR rent-stabilization registration is on file for 230 Duffield Street in the years PulseCities holds. Absence is not proof: an owner who stops registering leaves the same gap as a building that never had stabilized units. Checking your own apartment starts with the free rent history from the state. That is the only binding answer, and it takes time to come back. While you wait, you can get an email when the record here moves: a deed, an eviction, a permit or a violation filed on this building. How to check rent-stabilized status →
Open code violations at 230 Duffield Street
HPD and DOB inspectors have written 21 violations against this building, of which 11 remain unresolved. That is more than 9 in 10 buildings its size in 11201. The most serious open grade here is immediately hazardous, with 2 open violations.
Classes run A (non-hazardous) to C (immediately hazardous); DOB class I carries a vacate order. Source: NYC HPD violations, current through October 10, 2026.
Violation history at 230 Duffield Street
| Violation | Issued | Class |
|---|---|---|
| Paint with light colored paint to the satisfaction of this department all walls and ceiling in the 1st room fr…Nov Sent Out | Sep 13, 2026 | A |
| Paint with light colored paint to the satisfaction of this department all walls and ceiling in the entire apar…Nov Sent Out | Sep 9, 2026 | A |
| Paint with light colored paint to the satisfaction of this department all walls and ceiling in the 1st room fr…Nov Sent Out | Aug 31, 2026 | A |
| Properly repair with similar material the broken or defective masonry stucco at east exterior wall at all stor…Violation Open | May 18, 2026 | A |
| Provide hot water at all hot water fixtures in the kitchenetteNov Sent Out | May 12, 2026 | C |
| File annual bedbug report in accordance with hpd rule as described on the back of this notice of violation or…Nov Sent Out | May 4, 2026 | A |
| Provide hot water at all hot water fixtures in the entire apartmentNov Sent Out | May 4, 2026 | C |
| Properly repair or replace the broken or defective counter ballance at lower window sash at east wall at commu…Nov Sent Out | Jan 8, 2026 | B |
The 8 most recent violations written against this building, newest first, 8 of them still open. Each row is the inspector's own wording with the statute citation removed. Source: NYC HPD violations, current through October 10, 2026.
311 complaint history at 230 Duffield Street
39 complaints in the past 12 months
NYC 311 housing and building complaints logged for this address. Source: NYC 311, current through October 10, 2026.
How 230 Duffield Street compares in 11201
PulseCities tracks 3,330 lots in 11201, of which 72 carry an executed eviction from the marshal record, which starts in April 2024, and 194 carry a deed from the shorter ACRIS window. 11201 scores 21.1 out of 100 for displacement pressure, 134 of 177 scored NYC ZIP codes. The full signal breakdown for Brooklyn Heights →
Other buildings on this block
The city's files carry a record for 2 other addresses on tax block 145 in Brooklyn. They run in lot order, which is roughly the order you would walk them:
Questions about 230 Duffield Street
Who owns 230 Duffield Street?
The city's property file lists SERVICES/UNDERSERVED MENTAL HLTH PROGRAM as the owner of record for 230 Duffield Street. No deed for this lot appears in the ACRIS records PulseCities holds, so that name comes from the tax roll rather than from a recorded transfer.
Has 230 Duffield Street changed hands recently?
No deed for 230 Duffield Street appears in the ACRIS records PulseCities holds. That means no transfer has been published for this lot in the current window, not that the building has never been sold.
Have there been evictions at 230 Duffield Street?
No executed eviction at 230 Duffield Street appears in the NYC evictions dataset, which PulseCities holds from April 2024 forward. Executed evictions are the end of the process, so a building with none may still have active housing court cases.
Is 230 Duffield Street rent stabilized?
No DHCR registration for 230 Duffield Street appears in the years PulseCities holds. That is a gap in the registration record rather than an answer about any apartment, and the free rent history from NYS Homes and Community Renewal is what settles it.
What is 230 Duffield Street assessed at for property taxes?
The Department of Finance assessed the lot at $923K for the 2026 tax year. That is the figure the city taxes rather than a sale price, and the bill depends on the tax class rate and on any exemptions on the lot.
What is the displacement risk around 230 Duffield Street?
11201 (Brooklyn Heights) scores 21.1 out of 100 on the PulseCities displacement index. The score reads five ZIP-level signals: LLC acquisition rate, permit intensity, 311 complaint volume, executed evictions, and serious HPD violations. It describes the area around the building, not the building itself.
Look up another building
Sourced from NYC public records: ACRIS deeds, DOB permits, the NYC evictions dataset, and 311. Records reflect what agencies have published and can lag events.