# 749 Knickerbocker Avenue, Brooklyn, NY 11221

BBL 3033990001 · Block 3399 · Lot 1 · BIN 3326427, 3326430, 3326426  
Canonical page: https://nycpropertyfacts.com/ny/brooklyn/749-knickerbocker-avenue-3033990001  
Last updated: 2026-11-06 · Open-item counts as of 2026-11-06

Also recorded as: 741 Knickerbocker Ave; 751 Knickerbocker Ave; 307 Weirfield St; 745 Knickerbocker Ave; 747 Knickerbocker Ave; 305 Weirfield St

## Summary

749 Knickerbocker Avenue (Brooklyn, NY 11221; tax lot BBL 3033990001) is a school or educational building (building class W2: educational building (subtype W2)), built around 1922, on a 20,200 sq ft lot zoned R6. City tax records list the owner as ST MARTIN OF TOURS RC. The Department of Finance's final market value for tax year 2027 is $4,214,000. As of November 6, 2026, NYC Open Data shows six DOB jobs with a permit issued but no sign-off, one active DOB violation, one active ECB violation and three OATH tickets with an unpaid balance. There was one 311 request 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, “749 Knickerbocker Avenue, Brooklyn, NY 11221 (BBL 3033990001)”, data as of 2026-11-06, https://nycpropertyfacts.com/ny/brooklyn/749-knickerbocker-avenue-3033990001. Source: NYC Open Data.

## Neighborhood

Bedford-Stuyvesant (East): https://nycpropertyfacts.com/ny/brooklyn/neighborhoods/bedford-stuyvesant-east

- Open HPD violations: https://nycpropertyfacts.com/ny/brooklyn/neighborhoods/bedford-stuyvesant-east/open-hpd-violations
- Active DOB violations: https://nycpropertyfacts.com/ny/brooklyn/neighborhoods/bedford-stuyvesant-east/active-dob-violations
- Active ECB violations: https://nycpropertyfacts.com/ny/brooklyn/neighborhoods/bedford-stuyvesant-east/active-ecb-violations
- Open DOB jobs: https://nycpropertyfacts.com/ny/brooklyn/neighborhoods/bedford-stuyvesant-east/open-dob-jobs
- Unpaid OATH tickets: https://nycpropertyfacts.com/ny/brooklyn/neighborhoods/bedford-stuyvesant-east/unpaid-oath-tickets

## Open items

| Item | Count |
|---|---|
| Open DOB jobs (permit issued, not signed off) | 6 |
| Active DOB violations | 1 |
| Active ECB violations | 1 |
| Open HPD violations | 0 |
| OATH tickets with unpaid balance | 3 |

## Lot & building

- Owner of record: ST MARTIN OF TOURS RC
- Building class: W2 – Educational building (subtype W2)
- Year built: 1922
- Floors: 3
- Units: 0 residential / 0 total
- Lot area: 20,200 sq ft · Building area: 40,415 sq ft
- Zoning: R6
- Source: PLUTO (Dept. of City Planning) (https://data.cityofnewyork.us/d/64uk-42ks), data as of 2026-11-06

## Tax assessment

- Tax year 2027 (final roll): market value $4,214,000, assessed value $1,896,300, tax class 4
- 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.

No records found.

## 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 |
|---|---|---|---|
| 2018-10-04 | open (Permit Entire) | DOB NOW job filing B00084737-I1 (Alteration): Permit Entire — permit issued, no sign-off on record. | w9ak-ipjd |
| 2018-10-04 | open (Permit Entire) | DOB NOW job filing B00084774-I1 (Alteration): Permit Entire — permit issued, no sign-off on record. | w9ak-ipjd |
| 2012-08-07 | open (PERMIT ISSUED - ENTIRE JOB/WORK) | BIS job 320532125 (A1 – Major alteration (changes use, egress or occupancy)): PERMIT ISSUED - ENTIRE JOB/WORK — permit issued, no sign-off on record. HEREWITH FILING TO CHANGE THE USE FOR CELLAR AND MEZZANINE FLOOR. MINOR PARTITION CHANGES. | ic3t-wcy2 |
| 2011-01-06 | open (PERMIT ISSUED - ENTIRE JOB/WORK) | BIS job 320258332 (A2 – Alteration with multiple work types (no change to use/occupancy)): PERMIT ISSUED - ENTIRE JOB/WORK — permit issued, no sign-off on record. INSTALL TEMPORARY DOUBLEWALL OUTDOOR OIL TANK. | ic3t-wcy2 |
| 2003-05-28 | open (PERMIT ISSUED - ENTIRE JOB/WORK) | BIS job 301548270 (A2 – Alteration with multiple work types (no change to use/occupancy)): PERMIT ISSUED - ENTIRE JOB/WORK — permit issued, no sign-off on record. REPLACE GAS HOT WATER HEATER AND INSTALL GAS BOILER. NO CHANGE IN EGRESS, OCCUPANCY OR USE UNDER THIS APPLICATION. | ic3t-wcy2 |
| 2003-05-07 | open (PERMIT ISSUED - PARTIAL JOB) | BIS job 301546094 (A1 – Major alteration (changes use, egress or occupancy)): PERMIT ISSUED - PARTIAL JOB — permit issued, no sign-off on record. Propose to alter existing three (3) story convent and change the use to a non-for profit institution with sleeping accomodations use group 3-A. | ic3t-wcy2 |
| 2021-11-17 | n/a (Signed-off) | DOB NOW work permit for job B00557036-I1: Mechanical Systems — MECHANICAL MODIFICATIONS TO INCLUDE MODIFYING EXISTING DUCTWORK AND THE ADDITION OF A SUPPLEMENTAL VRF SYSTEM. NO CHANGE OF USE, OCCUPANCY OR EGRESS UNDER THIS…. Issued 2021-11-17, expires 2022-05-15. | rbx6-tga4 |
| 2019-06-26 | n/a (Permit Issued) | DOB NOW work permit for job B00084774-I1: Supported Scaffold — INSTALLATION OF A TEMPORARY SCAFFOLD AS PER PLANS IN CONJUNCTION WITH GENERAL CONSTRUCTION. NO CHANGE IN USE, EGRESS OR OCCUPANCY. SCAFFOLD SHALL COMPLY WITH 2…. Issued 2019-06-26, expires 2020-12-31. | rbx6-tga4 |
| 2018-10-12 | n/a (Permit Issued) | DOB NOW work permit for job B00084737-I1: Sidewalk Shed — INSTALLATION OF A HEAVY DUTY SIDEWALK SHED AS PER PLANS IN CONJUNCTION WITH GENERAL CONSTRUCTION. NO CHANGE IN USE, EGRESS OR OCCUPANCY. SIDEWALK SHED SHALL CO…. Issued 2018-10-12, expires 2019-06-27. | rbx6-tga4 |
| 2018-10-10 | n/a (ISSUED (initial)) | BIS work permit for job 321852134: Equipment work / Other / general construction. Issued 2018-10-10, expires 2019-02-16. | ipu4-2q9a |
| 2018-10-05 | n/a (Permit Issued) | DOB NOW work permit for job B00084774-I1: Supported Scaffold — INSTALLATION OF A TEMPORARY SCAFFOLD AS PER PLANS IN CONJUNCTION WITH GENERAL CONSTRUCTION. NO CHANGE IN USE, EGRESS OR OCCUPANCY. SCAFFOLD SHALL COMPLY WITH 2…. Issued 2018-10-05, expires 2019-10-05. | rbx6-tga4 |
| 2017-03-27 | n/a (ISSUED (initial)) | BIS work permit for job 321547821: Equipment work / Mechanical/HVAC. Issued 2017-03-27, expires 2017-07-15. | ipu4-2q9a |
| 2015-12-30 | n/a (ISSUED (renewal)) | BIS work permit for job 320431494: Equipment work / Other / general construction. Issued 2015-12-30, expires 2016-08-31. | ipu4-2q9a |
| 2015-12-30 | n/a (ISSUED (renewal)) | BIS work permit for job 320532125: Alteration. Issued 2015-12-30, expires 2016-08-31. | ipu4-2q9a |
| 2015-12-30 | n/a (ISSUED (renewal)) | BIS work permit for job 320431494: Equipment work / Other / general construction. Issued 2015-12-30, expires 2016-08-31. | ipu4-2q9a |
| 2015-12-30 | n/a (ISSUED (renewal)) | BIS work permit for job 320431494: Equipment work / Mechanical/HVAC. Issued 2015-12-30, expires 2016-08-31. | ipu4-2q9a |
| 2015-06-01 | n/a (ISSUED (initial)) | BIS work permit for job 321098860: Alteration / Other / general construction. Issued 2015-06-01, expires 2015-10-04. | ipu4-2q9a |
| 2015-02-03 | n/a (ISSUED (renewal)) | BIS work permit for job 320431494: Plumbing / Plumbing. Issued 2015-02-03, expires 2016-02-03. | ipu4-2q9a |
| 2015-02-02 | n/a (ISSUED (renewal)) | BIS work permit for job 320431494: Equipment work / Mechanical/HVAC. Issued 2015-02-02, expires 2015-12-01. | ipu4-2q9a |
| 2015-02-02 | n/a (ISSUED (renewal)) | BIS work permit for job 320532125: Alteration. Issued 2015-02-02, expires 2015-12-01. | ipu4-2q9a |

Showing 20 of 51. Full list: https://nycpropertyfacts.com/api/v1/property/3033990001/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 |
|---|---|---|---|
| 2021-12-02 | open (V-DOB VIOLATION - ACTIVE) | DOB violation (E-ELEVATOR ELEVATORREQUIRED). Active — not recorded as resolved or dismissed. | 3h2n-5cm9 |
| 2023-04-03 | open (violation status ACTIVE; hearing status IN VIOLATION; certification NO COMPLIANCE RECORDED) | ECB (DOB) violation, class - 2: ALTERED/CHANGED BUILDING OCCUPIED WITHOUT A VALID CERTIFICATE OF OCCUPANCY AS PER 28-118.3.1 - 28-118.3.2; NOTED: OBSERVED BUILDING IS OCCUPIED AS AN INSTITUTION WITH SLEEPING WHEN ALT 1 APPLICATION # 301546094. Violation status (DOB): active (open; not resolved in DOB records). Hearing/penalty status: found in violation. Certification of correction: no compliance recorded. | 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 |
|---|---|---|---|
| 2024-12-08 | 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 |
| 2024-07-31 | 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 |
| 2009-03-12 | open (DEFAULTED · DEFAULTED) | OATH ticket from Dep - Bureau Of Env. Complianc: OPERATING EMISSION SOURCE WITH EXPIRED REGISTRATION. Unpaid balance $175. Respondent defaulted (did not appear). | jz4z-kudi |
| 2026-05-08 | pending (RESCHEDULED) | OATH ticket from Fire Department Of Nyc: FIRE PROTECTION SYSTEMS:FAIL TO PREVENT UNNECESSARY UNWARRANTED ALARMS. Hearing pending. | 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 |
|---|---|---|---|
| 2025-03-23 | closed (CLOSE) | HPD complaint (apt WHOLEB): Unsanitary Condition – Pests; Water Leak – Heavy Flow; Plumbing – Toilet; Unsanitary Condition – Sewage; General – Cooking Gas; Safety – Fire Escape; Heat/Hot Water – Entire Building; Unsanitary Condition – Mold; Paint/Plaster – Ceiling. HPD attempted to conduct an inspection in response to this complaint, but was unable to complete the inspection. Please submit a new service request with 311 if the condition still exists. For more i… | ygpa-z7cr |
| 2025-03-23 | closed (CLOSE) | HPD complaint (apt BLDG): Heat/Hot Water – Entire Building. HPD attempted to conduct an inspection in response to this complaint, but was unable to complete the inspection. Please submit a new service request with 311 if the condition still exists. For more i… | ygpa-z7cr |
| 2026-05-28 | closed (Closed) | 311 request to DSNY: Obstruction – Trash or Recycling. | 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 ST MARTIN OF TOURS RC. | 64uk-42ks |

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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/3033990001