833 Knickerbocker Avenue, Brooklyn, NY 11237
Built 1931 · 2-story walk-up with stores · 8 apartments
No open housing violations.
- Tenant reviews
- None yetLived here? Reviews open soon.
- Open violations
- None openNo open housing violations on record.
- Public record
- Updated todayFrom the city’s own data (, 311, the courts), refreshed nightly.
What do these labels mean?Where each of these comes from
- Tenant-reported
- A resident's firsthand account of living here, moderated before it publishes, and labelled with whether we verified they lived there.
- Official violation
- A city inspector visited and recorded a code violation. HPD's own words, and its own hazard class.
- Public complaint
- A complaint somebody made to a city system, through HPD or 311. A report, not a finding: nobody has necessarily inspected it.
- Public filing
- A permit, a registration, a bedbug report: a document the owner filed with the city because the law requires it.
- Court record
- A Housing Court case HPD brought against the owner, or an eviction a city marshal carried out. A court's record: a case is an allegation until it ends in a finding.
- Insufficient data
- Not enough current information here to infer a pattern either way.
Tenant reviews
Tenant-reportedNo tenant reviews yet. Lived here? Be the first.
Nothing above this section came from a tenant. It is all filed by the city, which means it only holds what somebody reported and an inspector wrote down, not what it is actually like to live here.
Not open yet. Reviews open when this neighbourhood does.
Heat season
No heat or hot-water complaints or violations were recorded here last winter (2025–26). That is the city's record: it only holds what somebody reported.
| Winter | DaysDays with complaints | Complaints | Violations |
|---|---|---|---|
| 2025–26 | 0 | 0 | 0 |
The rules, 1 October to 31 May: from 6am to 10pm, when it is below 55°F outside, the apartment must be at least 68°F; overnight it must be at least 62°F whatever the weather. Hot water must be at least 120°F all year. A tenant without heat can report it to 311.
Rent stabilization
Public filingThis building is not on the state's list of buildings with rent-stabilized apartments for 2024. That is not proof none are: an owner who did not register is missing from the list too.
Source: Rent Guidelines Board building list, from the state's 2024 registrations. To know about one apartment, a tenant can ask the state for its rent history through Ask HCR.
City violations
Official violationPaperwork and notices9 open
The owner failed to file something the city requires, most often the annual property registration or the annual bedbug report. Real violations, and they say something about an owner, but not a condition anyone is living in. Kept out of the count at the top of this page for that reason.
×6File annual bedbug report in accordance with hpd rule as described on the back of this notice of violation or as described on hpds website, www.nyc.gov\hpd, search bed bugs.
6 issued 9 Apr 2021 to 5 May 2026Notice sent outPaperwork and notices
×3Owner failed to file a valid registration statement with the department as required by adm code §27-2097 and is therefore subject to civil penalties, prohibited from certifying violations, and denied the right to recover possession of premises for nonpayment of rent until a valid registration statement is filed.
3 issued 17 Nov 2023 to 18 Nov 2025Info notice sent outPaperwork and notices§ 27-2107
13 violations on record in total, 9 of them open. The count at the top of this page counts habitability violations only.
Complaints to the city
Public complaintComplaints are reports made to the city. They are not confirmed findings. They come from HPD and from 311, and the same problem can appear more than once if more than one neighbour called.
10 complaints in three years, 3 of them in the last twelve months.
- Garbage and cleanliness1 / 5
- Construction and illegal work2 / 4
- Noise0 / 1
Last twelve months / last three years. The solid part of each bar is the last twelve months.
Court records
Court recordHousing Court cases
Cases the city’s housing department (HPD) brought against the owner, usually to force repairs or restore heat. A case is an allegation; where the court recorded an outcome, it is shown.
No HPD Housing Court cases on record for this building.
Evictions
Residential evictions carried out by a city marshal since 2017. Most follow a case for unpaid rent, so a count here is not by itself a finding about the building or the landlord. We show how many, never which apartment.
No marshal evictions recorded at this building since 2017.
Filings
Public filingBuilding permits
No permit currently in force. 9 permits filed in the last five years.
Show 9 expired or finishedShow fewer
Alteration · Foundation
Issued 28 Jul 2025Expired 15 Mar 2026
Construction Fence
TEMPORARY FENCE INSTALLATION
Issued 12 Dec 2024Expired 12 Dec 2025
Foundation
Foundation work to be conducted in correlation with ALT-1 Job #321599034
Issued 30 May 2024Expired 30 May 2025
Plumbing · Sprinklers
Proposed sprinkler and plumbing in conjunction with Alt-1 # 321599034
Issued 22 May 2024Expired 22 May 2025
Sidewalk Shed
INSTALLATION OF A HEAVY DUTY SIDEWALK SHED AS PER PLANS DURING GENERAL CONSTRUCTION WORK (BUILDING EXTENSION). NO CHANGE IN USE, EGRESS OR OCCUPANCY. SIDEWALK SHED TO COMPLY WITH CHAPTER 33 OF NYC BUILDING CODE OF 2022.
Issued 23 Apr 2024Expired 23 Apr 2025
Support of Excavation
SOE work to be conducted in conjunction with BIS ALT-1 JOB # 321599034
Issued 12 Feb 2024Expired 12 Feb 2025
Structural
Structural work to be conducted in correlation with ALT-1 Job #321599034
Issued 12 Feb 2024Expired 12 Feb 2025
Sidewalk Shed
INSTALLATION OF HEAVY-DUTY SIDEWALK SHED AS PER PLANS. NO CHANGE IN USE OCCUPANCY OR EGRESS UNDER THIS APPLICATION. SIDEWALK SHED SHALL COMPLY WITH CHAPTER 33 OF THE 2014 NYC BUILDING CODE.
Issued 16 Mar 2022Expired 16 Mar 2023
Supported Scaffold
INSTALLATION OF MEDIUM DUTY PIPE SCAFFOLDING AS PER PLANS. NO CHANGE IN USE, OCCUPANCY OR EGRESS UNDER THIS APPLICATION. PIPE SCAFFOLDING SHALL COMPLY WITH CHAPTER 33 OF THE 2014 NYC BUILDING CODE. SIDEWALK SHED FILED UNDER SEPARATE APPLICATION.
Issued 16 Mar 2022Expired 16 Mar 2023
Annual bedbug report
Every multiple dwelling in New York must file this once a year. A report of zero infested units is good news. No report is not: failing to file is itself a violation.
No bedbug report on file for this building. That usually means the owner did not file one, not that there is nothing to report.
Ownership and management
Public filingAssociations come from registration records and may be incomplete. Owners register with HPD once a year, so a change of hands can go unrecorded for a full cycle.
The most recent registration on file for this address expired 31 Aug 2023 and has not been renewed since, so it is more than a full cycle old. Whoever is named below may no longer be responsible for the building.
Owner of record and managing agent
831 KNICKERBOCKER LLC
Public records list 831 KNICKERBOCKER LLC as the owner of record and the registered managing agent for this address as of 21 Sept 2022. Source: HPD registration.
Wrong company, wrong date, or a change that is not reflected here? Report a correction.
What to ask at the viewing
833 Knickerbocker Avenue, Brooklyn, NY 11237
Drawn from this building’s record above. They are questions, not conclusions: the point is to find out, in the twenty minutes you get inside, what the public record cannot tell you.
- The building's HPD registration is out of date or names nobody we could identify. Ask who the managing agent is and get a name, a phone number and an address in writing before you sign.
- 9 open violations for not filing something the city requires, usually the annual registration or the annual bedbug report. Nothing anyone lives in, but it is the record's plainest measure of whether this owner follows through. No bedbug report has ever been filed here, so the record cannot tell you the building's history — ask.
- Ask what the deposit is, exactly what can be deducted from it, and how and when it comes back.
- Ask who to call when something breaks, what happens after hours and at weekends, and how long a repair normally takes.
Ask for anything that matters in writing; an email after the viewing is enough. We are not your lawyer and this is not legal advice.
Questions about this building
No. HPD lists no open housing violations here. Paperwork filings, such as a late registration, are not counted.
It is not on the state's list of buildings with rent-stabilized apartments for 2024. That is not proof none are: an owner who did not register is missing from the list too.
No heat or hot-water complaints or violations were recorded here in the 2025–26 heat season.
No residential evictions by a city marshal are recorded here since 2017.
Not yet. Reviews come from people who lived here, and none has been published for this building.
BBL 3034250009 · Block 3425, Lot 9 · Building class C7