# 833 Knickerbocker Avenue, Brooklyn, NY 11237

BBL 3034250009 · Block 3425 · Lot 9 · BIN 3342655, 3079360  
Canonical page: https://nycpropertyfacts.com/ny/brooklyn/833-knickerbocker-avenue-3034250009  
Last updated: 2026-10-31 · Open-item counts as of 2026-10-31

Also recorded as: 831 Knickerbocker Ave

## Summary

833 Knickerbocker Avenue (Brooklyn, NY 11237; tax lot BBL 3034250009) is an 8-unit walk-up apartment building (building class C7: walk-up apartments, more than six families, with stores), built around 1931, on a 3,667 sq ft lot. City tax records list the owner as 831 ON LLC; per ACRIS, a deed to this owner dated November 1, 2023 lists a price of $1,700,000. The Department of Finance's final market value for tax year 2027 is $925,000. As of October 31, 2026, NYC Open Data shows two DOB jobs with a permit issued but no sign-off, two active DOB violations, one active ECB violation and two OATH tickets with an unpaid balance. There were eight 311 requests in the past 12 months and two HPD complaints since 2019. (Source: NYC Open Data — DOB, HPD, OATH, DOF, DCP and ACRIS datasets — compiled by NYC Property Facts.)

How to cite: NYC Property Facts, “833 Knickerbocker Avenue, Brooklyn, NY 11237 (BBL 3034250009)”, data as of 2026-10-31, https://nycpropertyfacts.com/ny/brooklyn/833-knickerbocker-avenue-3034250009. Source: NYC Open Data.

## Open items

| Item | Count |
|---|---|
| Open DOB jobs (permit issued, not signed off) | 2 |
| Active DOB violations | 2 |
| Active ECB violations | 1 |
| Open HPD violations | 0 |
| OATH tickets with unpaid balance | 2 |

## Lot & building

- Owner of record: 831 ON LLC
- Building class: C7 – Walk-up apartments, more than six families, with stores
- Year built: 1931
- Floors: 2
- Units: 8 residential / 9 total
- Lot area: 3,667 sq ft · Building area: 10,042 sq ft
- Zoning: —
- Source: PLUTO (Dept. of City Planning) (https://data.cityofnewyork.us/d/64uk-42ks), data as of 2026-10-31

## Tax assessment

- Tax year 2027 (final roll): market value $925,000, assessed value $416,250, tax class 2B
- Source: DOF Property Valuation and Assessment Data (https://data.cityofnewyork.us/d/8y4t-faws)

## Sales & deeds (ACRIS)

Deeds recorded with the City Register. amount 0 usually means a non-market transfer. lots_in_deed > 1 means the price covers several lots.

| Date | Status | Description | Source |
|---|---|---|---|
| 2023-11-01 | recorded (DEED) | DEED dated 2023-11-01 from 831 KNICKERBOCKER LLC to 831 ON LLC, stated price $1,700,000. | bnx9-e6tj |
| 2020-10-27 | recorded (DEED) | DEED dated 2020-10-27 from ST. ANTHONY'S TEMPLE SPIRTUALIST CHURCH, INC.; ST. ANTHONY'S TEMPLE CHURCH, INC. to 831 KNICKERBOCKER LLC, stated price $2,000,000. | bnx9-e6tj |
| 1970-12-07 | recorded (DEED) | DEED dated 1970-12-07 from TURNER WILLIAM to ST ANTHONY'S TEMPLE SPIRITUALIST CHURCH INC, no price stated ($0). | bnx9-e6tj |
| 1970-09-14 | recorded (DEED) | DEED dated 1970-09-14 from MURRAY WILLIAM H JR to TURNER WILLIAM, no price stated ($0). | bnx9-e6tj |

## Open DOB jobs and recent work permits

A DOB "job" is an application to do construction work. status "open" = a permit was issued but DOB has no record of final sign-off. Work permits are listed with type "work_permit" and their DOB permit status (they are not counted as open items).

| Date | Status | Description | Source |
|---|---|---|---|
| 2021-08-17 | open (PERMIT ISSUED - ENTIRE JOB/WORK) | BIS job 340820133 (A3 – Minor alteration (one type of work)): PERMIT ISSUED - ENTIRE JOB/WORK — permit issued, no sign-off on record. BUILDER'S PAVEMENT PLAN & CHECKLIST SUBMITTED HEREWITH FOR TOTAL LOT FRONTAGE OF 146.67 FEET ON KNICKERBOCKER AVENUE AND CONVERT STREET, A1 # 321599034, HOUSE#: 831 KNICKERBOCKER AVENUE | ic3t-wcy2 |
| 2020-11-20 | open (PERMIT ISSUED - ENTIRE JOB/WORK) | BIS job 321599034 (A1 – Major alteration (changes use, egress or occupancy)): PERMIT ISSUED - ENTIRE JOB/WORK — permit issued, no sign-off on record. | ic3t-wcy2 |
| 2025-07-29 | n/a (ISSUED (renewal)) | BIS work permit for job 321599034: Alteration. Issued 2025-07-29, expires 2026-03-16. | ipu4-2q9a |
| 2025-03-17 | n/a (Signed-off) | DOB NOW work permit for job B00468131-S1: Mechanical Systems — new ductless hvac and hot water heaters for mixed used building. Issued 2025-03-17, expires 2026-03-17. | rbx6-tga4 |
| 2025-03-13 | n/a (ISSUED (renewal)) | BIS work permit for job 321599034: Alteration. Issued 2025-03-13, expires 2025-07-05. | ipu4-2q9a |
| 2024-12-12 | n/a (Signed-off) | DOB NOW work permit for job B00468131-S2: Construction Fence — TEMPORARY FENCE INSTALLATION. Issued 2024-12-12, expires 2025-12-12. | rbx6-tga4 |
| 2024-08-07 | n/a (ISSUED (renewal)) | BIS work permit for job 321599034: Alteration. Issued 2024-08-07, expires 2025-03-16. | ipu4-2q9a |
| 2024-05-30 | n/a (Signed-off) | DOB NOW work permit for job B00468131-S3: Foundation — Foundation work to be conducted in correlation with ALT-1 Job #321599034. Issued 2024-05-30, expires 2025-05-30. | rbx6-tga4 |
| 2024-05-22 | n/a (Signed-off) | DOB NOW work permit for job B00468131-I1: Sprinklers — Proposed sprinkler and plumbing in conjunction with Alt-1 # 321599034. Issued 2024-05-22, expires 2025-05-22. | rbx6-tga4 |
| 2024-05-22 | n/a (Signed-off) | DOB NOW work permit for job B00468131-I1: Sprinklers — Proposed sprinkler and plumbing in conjunction with Alt-1 # 321599034. Issued 2024-05-22, expires 2025-05-22. | rbx6-tga4 |
| 2024-05-22 | n/a (Signed-off) | DOB NOW work permit for job B00468131-I1: Plumbing — Proposed sprinkler and plumbing in conjunction with Alt-1 # 321599034. Issued 2024-05-22, expires 2025-05-22. | rbx6-tga4 |
| 2024-05-22 | n/a (Signed-off) | DOB NOW work permit for job B00468131-I1: Plumbing — Proposed sprinkler and plumbing in conjunction with Alt-1 # 321599034. Issued 2024-05-22, expires 2025-05-22. | rbx6-tga4 |
| 2024-04-23 | n/a (Signed-off) | DOB NOW work permit for job B01038441-I1: 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 …. Issued 2024-04-23, expires 2025-04-23. | rbx6-tga4 |
| 2024-03-27 | n/a (ISSUED (renewal)) | BIS work permit for job 321599034: Foundation. Issued 2024-03-27, expires 2025-03-16. | ipu4-2q9a |
| 2024-03-27 | n/a (ISSUED (renewal)) | BIS work permit for job 321599034: Foundation. Issued 2024-03-27, expires 2025-03-16. | ipu4-2q9a |
| 2024-03-11 | n/a (ISSUED (renewal)) | BIS work permit for job 321599034: Alteration. Issued 2024-03-11, expires 2024-07-05. | ipu4-2q9a |
| 2024-02-22 | n/a (ISSUED (renewal)) | BIS work permit for job 321599034: Alteration. Issued 2024-02-22, expires 2024-03-16. | ipu4-2q9a |
| 2024-02-12 | n/a (Signed-off) | DOB NOW work permit for job B00468131-S5: Support of Excavation — SOE work to be conducted in conjunction with BIS ALT-1 JOB # 321599034. Issued 2024-02-12, expires 2025-02-12. | rbx6-tga4 |
| 2024-02-12 | n/a (Signed-off) | DOB NOW work permit for job B00468131-S4: Structural — Structural work to be conducted in correlation with ALT-1 Job #321599034. Issued 2024-02-12, expires 2025-02-12. | rbx6-tga4 |
| 2024-02-01 | n/a (Signed-off) | DOB NOW work permit for job B00468131-S1: Mechanical Systems — new ductless hvac and hot water heaters for mixed used building. Issued 2024-02-01, expires 2025-02-01. | rbx6-tga4 |

Showing 20 of 31. Full list: https://nycpropertyfacts.com/api/v1/property/3034250009/permits

## Open violations (DOB, ECB, HPD)

status "open" = DOB violation category is ACTIVE, ECB violation status is ACTIVE, or HPD violation status is Open.

| Date | Status | Description | Source |
|---|---|---|---|
| 1993-08-16 | open (V-DOB VIOLATION - ACTIVE) | DOB violation (LL6291-LOCAL LAW 62/91 - BOILERS BOILER REQUIRED). Active — not recorded as resolved or dismissed. | 3h2n-5cm9 |
| 1993-08-16 | open (V-DOB VIOLATION - ACTIVE) | DOB violation (LL6291-LOCAL LAW 62/91 - BOILERS BOILER REQUIRED). Active — not recorded as resolved or dismissed. | 3h2n-5cm9 |
| 2024-10-01 | open (ADMIT/IN-VIO) | ECB (DOB) violation, class - 1: FAILURE TO SUBMIT THE REQUIRED PARKING STRUCTURE INITIAL OBSERVATION REPORT FOR AN EXISTING PARKING STRUCTURE OR A PERIODIC INSPECTION OF A PARKING STRUCTURE(PIPS) REPORT DOCUMENTING THE CONDITIONS OF PSID#B000. Active. | 6bgk-3dad |

## OATH tickets with unpaid balance or pending

status "open" = balance due > $0 after a decision (cases awaiting a hearing are "pending"). default=true means the respondent did not appear.

| Date | Status | Description | Source |
|---|---|---|---|
| 2025-11-05 | open (DOCKETED · IN VIOLATION) | OATH ticket from Fire Department Of Nyc: FIRE PROTECTION SYSTEMS:FAIL TO PREVENT UNNECESSARY UNWARRANTED ALARMS. Unpaid balance $935. | jz4z-kudi |
| 2021-08-11 | open (DOCKETED · DEFAULTED) | OATH ticket from Dos - Enforcement Agents: ABANDONING VEHICLE. Unpaid balance $1,000. Respondent defaulted (did not appear). | jz4z-kudi |

## Complaints (HPD since 2019, 311 last 12 months)

Complaints are reports, not violations. status mirrors the published complaint / request status.

| Date | Status | Description | Source |
|---|---|---|---|
| 2023-11-03 | closed (CLOSE) | HPD complaint (apt BLDG): Unsanitary Condition – Garbage/Recycling Storage. The Department of Housing Preservation and Development inspected the following conditions. No violations were issued. The complaint has been closed. | ygpa-z7cr |
| 2021-09-16 | closed (CLOSE) | HPD complaint (apt BLDG): Unsanitary Condition – Garbage/Recycling Storage. The Department of Housing Preservation and Development was not able to gain access to inspect the following conditions. The complaint has been closed. If the condition still exists, please file a new… | ygpa-z7cr |
| 2026-08-01 | closed (Closed) | 311 request to NYPD: Noise - Street/Sidewalk – Loud Music/Party. | erm2-nwe9 |
| 2026-07-04 | closed (Closed) | 311 request to NYPD: Illegal Fireworks – N/A. | erm2-nwe9 |
| 2026-05-05 | closed (Closed) | 311 request to DEP: Water System – Possible Water Main Break (Use Comments) (WA1). | erm2-nwe9 |
| 2026-04-03 | closed (Closed) | 311 request to DOB: Building/Use – No Certificate Of Occupancy/Illegal/Contrary To CO. | erm2-nwe9 |
| 2026-03-01 | closed (Closed) | 311 request to DOB: Building/Use – Illegal Conversion Of Residential Building/Space. | erm2-nwe9 |
| 2025-12-08 | closed (Closed) | 311 request to DSNY: Dirty Condition – Trash. | erm2-nwe9 |
| 2025-11-02 | closed (Closed) | 311 request to NYPD: Illegal Parking – Blocked Sidewalk. | erm2-nwe9 |
| 2025-11-02 | closed (Closed) | 311 request to NYPD: Illegal Parking – Blocked Sidewalk. | erm2-nwe9 |

## Owners & contacts

Owner of record comes from city tax records (PLUTO) and can lag behind recent sales.

| Date | Status | Description | Source |
|---|---|---|---|
| 2026-08-24 | current | City tax records (PLUTO) list the owner as 831 ON LLC. | 64uk-42ks |
| 2023-11-01 | recorded | Grantee (buyer) on the most recent deed (DEED, 2023-11-01). | 636b-3b5g |
| 2022-09-22 | expired_registration | HPD registration contact: HeadOfficer Yehuda Cohen, business city Brooklyn. | feu5-w2e2 |
| 2022-09-22 | expired_registration | HPD registration contact: CorporateOwner (831 KNICKERBOCKER LLC), business city Brooklyn. | feu5-w2e2 |
| 2022-09-22 | expired_registration | HPD registration contact: Agent Yisroel Kanar (831 KNICKERBOCKER LLC), business city Brooklyn. | feu5-w2e2 |
| 2022-09-22 | expired_registration | HPD registration contact: SiteManager Yisroel Kanar. | feu5-w2e2 |

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Independent site. Data from NYC Open Data; not affiliated with the City of New York. Not a title search or official record; verify with the issuing agency. JSON: https://nycpropertyfacts.com/api/v1/property/3034250009