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307 Knickerbocker Avenue

Brooklyn, NY 11237BBL 3-03220-0002Map

Owner of record: Ambrosino Equities LLC

307 Knickerbocker Avenue is a mixed residential and retail building built in 1931 in Brooklyn, 11237. It has 6 residential units across 4 floors. The owner of record is Ambrosino Equities LLC. HPD has recorded 44 housing violations here, most recently on May 5, 2026. City tax records listed 6 rent-stabilized apartments here in 2024.

HPD violations
44
DOB violations
6
ECB violations
3
HPD complaints
24

What to know

Good
No open Class C

No open immediately-hazardous violations among recent records.

Good
Last violation May 5, 2026

Date of the most recent HPD inspection that found a problem.

Good
No unpaid ECB fines

No balance due on recent ECB violations.

Rent stabilization

Rent-stabilized units in 2024
6
About 100% of the building's 6 apartments

Counts come from owners' rent-stabilization filings shown on NYC Department of Finance tax bills, as extracted by JustFix. They tell you a building has stabilized apartments, not which ones.

Stabilized units by tax-bill year

Think your apartment is stabilized? Request its rent history from HCR (free), then check your renewal with the renewal calculator.

Violations

Most recent first. Showing up to 50 per agency.

HPD housing violations · 44

  • A

    File 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.

    May 5, 2026

    Closed — Violation dismissed
  • A

    File 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.

    Jun 10, 2025

    Closed — Violation dismissed
  • C

    Abate the infestation consisting of mice in the entire apartment located at apt 4l, 4th story, 2nd apartment from west at north

    Sep 1, 2024 · Apt 4L

    Closed — Violation dismissed
  • C

    Abate the infestation consisting of roaches in the entire apartment located at apt 4l, 4th story, 2nd apartment from west at north

    Sep 1, 2024 · Apt 4L

    Closed — Violation dismissed
  • B

    Properly repair with similar material the broken or defective wood floor in the kitchen located at apt 4l, 4th story, 2nd apartment from west at north

    Sep 1, 2024 · Apt 4L

    Closed — Violation dismissed
  • B

    Repair or replace the smoke detector defective in the entire apartment located at apt 4l, 4th story, 2nd apartment from west at north

    Sep 1, 2024 · Apt 4L

    Closed — Violation dismissed
  • A

    Paint with light colored paint to the satisfaction of this department the ceiling and south wall in the bathroom located at apt 4l, 4th story, 2nd apartment from west at north

    Sep 1, 2024 · Apt 4L

    Closed — Violation dismissed
  • B

    Repair or replace the carbon monoxide detecting device(s). defective in the entire apartment located at apt 4l, 4th story, 2nd apartment from west at north

    Sep 1, 2024 · Apt 4L

    Closed — Violation dismissed
  • B

    Properly repair with similar material the broken or defective vinyl tiles at floor in the kitchen located at apt 3r, 3rd story, 1st apartment from north at east

    Oct 17, 2023 · Apt 3R

    Closed — Violation dismissed
  • B

    Properly repair with similar material the broken or defective caulking around sink in the kitchen located at apt 3r, 3rd story, 1st apartment from north at east

    Oct 17, 2023 · Apt 3R

    Closed — Violation dismissed
Show 34 more ↓
  • B

    Repair the broken or defective plastered surfaces and paint in a uniform color at all walls and ceilings in the bathroom located at apt 3r, 3rd story, 1st apartment from north at east

    Oct 17, 2023 · Apt 3R

    Closed — Violation dismissed
  • C

    Abate the infestation consisting of mice in the entire apartment located at apt 3r, 3rd story

    Oct 17, 2023 · Apt 3R

    Closed — Violation dismissed
  • B

    Properly repair with similar material the broken or defective vinyl tiles at floor in the 3rd room from north located at apt 3r, 3rd story, 1st apartment from north at east

    Oct 17, 2023 · Apt 3R

    Closed — Violation dismissed
  • B

    Properly repair or replace the broken or defective closet at east wall in the 3rd room from north located at apt 3r, 3rd story, 1st apartment from north at east

    Oct 17, 2023 · Apt 3R

    Closed — Violation dismissed
  • A

    Paint with light colored paint to the satisfaction of this department all walls and ceilings in the entire apartment located at apt 3r, 3rd story

    Oct 17, 2023 · Apt 3R

    Closed — Violation dismissed
  • A

    Discontinue use of interior room for living or provide an alcove opening of at least 32# sq ft to room having a window opening directly to street or yard in the 4th room from north located at apt 3r, 3rd story, 1st apartment from north at east

    Apr 18, 2023 · Apt 3R

    Closed — Violation dismissed
  • A

    File 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.

    Feb 25, 2022

    Closed — Violation dismissed
  • A

    § 329, m/d law and dept. rules and regs. provide a completed certificate of inspection visits in a proper frame at or near mailboxes, bottom edge of frame between 48-62 inches above floor missing at public hall, 1st story

    Oct 15, 2021

    Closed — Violation closed
  • C

    Abate the infestation consisting of roaches in the entire apartment located at apt 4l, 4th story, 2nd apartment from south at west

    Oct 15, 2021 · Apt 4L

    Closed — Violation dismissed
  • C

    Abate the infestation consisting of mice in the entire apartment located at apt 4l, 4th story, 2nd apartment from south at west

    Oct 15, 2021 · Apt 4L

    Closed — Violation dismissed
  • B

    Repair or replace the smoke detector defective in the entire apartment located at apt 4l, 4th story, 2nd apartment from south at west

    Oct 15, 2021 · Apt 4L

    Closed — Violation dismissed
  • B

    Repair or replace the carbon monoxide detecting device(s). defective in the entire apartment located at apt 4l, 4th story, 2nd apartment from south at west

    Oct 15, 2021 · Apt 4L

    Closed — Violation dismissed
  • C

    Code: arrange and make self-closing the doors , in the entrance located at apt 4l, 4th story, 2nd apartment from south at west

    Oct 15, 2021 · Apt 4L

    Closed — Violation dismissed
  • A

    Properly repair with similar material the broken or defective ceramic tiles at north wall in the kitchen located at apt 4l, 4th story, 2nd apartment from south at west

    Oct 15, 2021 · Apt 4L

    Closed — Violation dismissed
  • A

    Paint with light colored paint to the satisfaction of this department at ceiling in the kitchen located at apt 4l, 4th story, 2nd apartment from south at west

    Oct 15, 2021 · Apt 4L

    Closed — Violation dismissed
  • B

    Repair the broken or defective plastered surfaces and paint in a uniform color at ceiling in the 5th room from north located at apt 4l, 4th story, 2nd apartment from south at west

    Oct 15, 2021 · Apt 4L

    Closed — Violation dismissed
  • A

    Post and maintain a proper sign on wall of entrance story showing the registration number assigned by the department and the address of the building. at public hall, 1st story

    Oct 15, 2021

    Closed — Violation closed
  • A

    Post and maintain a proper notice on wall of the entrance story in english and spanish on the availability of the agencys housing information guide. a sample notice can be found at www.nyc.gov/hpd. at public hall, 1st story

    Oct 15, 2021

    Closed — Violation closed
  • A

    Post a proper notice of smoke detector requirements, in a form approved by the commissioner, at or near the mail box at public hall, 1st story

    Oct 15, 2021

    Closed — Violation closed
  • A

    Post a proper notice of carbon monoxide detecting device requirements, in a form approved by the commissioner, in a common area of a class a multiple dwelling near inspection certificate or provide notice to tenants in a private dwelling.

    Oct 15, 2021

    Closed — Violation closed
  • A

    Post, in a form approved by the commissioner, and maintain a notice in a common area of the building regarding the procedures that should be followed when a gas leak is suspected

    Oct 15, 2021

    Closed — Violation closed
  • A

    File 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.

    Apr 9, 2021

    Closed — Violation dismissed
  • B

    Repair the broken or defective plastered surfaces and paint in a uniform color at ceiling and all walls in the 4th room from north located at apt 3r, 3rd story, 1st apartment from north at east

    Jan 12, 2019 · Apt 3R

    Closed — Violation dismissed
  • B

    Properly repair with similar material the broken or defective wood floor in the 4th room from north located at apt 3r, 3rd story, 1st apartment from north at east

    Jan 12, 2019 · Apt 3R

    Closed — Violation dismissed
  • B

    Properly repair with similar material the broken or defective vinyl floor tiles in the 4th room from north located at apt 3r, 3rd story, 1st apartment from north at east

    Jan 12, 2019 · Apt 3R

    Closed — Violation dismissed
  • B

    Properly repair the broken or defective door frame in the 2nd room from north located at apt 3r, 3rd story, 1st apartment from north at east

    Jan 12, 2019 · Apt 3R

    Closed — Violation dismissed
  • B

    Repair the broken or defective plastered surfaces and paint in a uniform color at ceiling and south wall in the bathroom located at apt 3r, 3rd story, 1st apartment from north at east

    Jan 12, 2019 · Apt 3R

    Closed — Violation dismissed
  • B

    Abate the nuisance consisting of mice in the entire apartment located at apt 3r, 3rd story, 1st apartment from north at east

    Jan 12, 2019 · Apt 3R

    Closed — Violation dismissed
  • I

    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.

    Oct 9, 2015

    Closed — Violation dismissed
  • I

    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.

    Feb 23, 2015

    Closed — Violation dismissed
  • B

    Repair or replace the smoke detector missing in the entire apartment located at apt 3r, 3rd story, 1st apartment from east at south

    Sep 15, 2011 · Apt 3R

    Closed — Violation closed
  • B

    Replace with new the broken or defective lower sash window glass in the 5th room from east located at apt 3r, 3rd story, 1st apartment from east at south

    Sep 15, 2011 · Apt 3R

    Closed — Violation closed
  • B

    Properly repair the broken or defective lower sash at window in the 5th room from east located at apt 3r, 3rd story, 1st apartment from east at south

    Sep 15, 2011 · Apt 3R

    Closed — Violation closed
  • B

    Replace with new the missing bathtub spout in the bathroom located at apt 3r, 3rd story, 1st apartment from east at south

    Sep 15, 2011 · Apt 3R

    Closed — Violation closed

DOB building violations · 6

  • Low pressure boiler boiler required

    Violation issued for failure to file annual boiler 2010 inspection report

    Dec 13, 2011

    Dob violation - dismissed
  • Low pressure boiler boiler required

    Lblvio-low pressure boiler boiler required

    Dec 31, 2009

    Dob violation - dismissed
  • Boilers boiler required

    Ll6291-local law 62/91 - boilers boiler required

    Jan 3, 2008

    Dob violation - dismissed
  • Boilers boiler required

    Ll6291-local law 62/91 - boilers boiler required

    Jan 6, 2006

    Dob violation - dismissed
  • Boilers boiler required

    Ll6291-local law 62/91 - boilers boiler required

    Jul 25, 1994

    Dob violation - dismissed
  • Boiler boiler optional

    B-boiler boiler optional

    Mar 16, 1991

    Vp*-violation unserved ecb- dismissed

ECB violations · 3

  • Non-hazardous

    Plumbing work without a permit. noted: tubs, toilets & sinks were re- moved on 3rd & 4th floor. gas line on 3rd floor has not been capped off & adjacent apt. is occupied, at said premises. a search of dept

    Jun 24, 1999 · Penalty $2,500

    Resolve
  • Non-hazardous

    Work without a permit. noted: on 3rd & 4th floors partition walls havebeen removed in several locations in apt facing suydam street. approx.10'feet by 12 feet. new partition walls approx. 10'feet by 12 feet are

    Jun 24, 1999 · Penalty $2,500

    Resolve
  • Non-hazardous

    32,(32)safety relief is leaking (32)remove wood from blocking fresh air vent

    Mar 16, 1991

    Resolve

Complaints

  • Unsanitary condition

    Pests

    Aug 26, 2024 · Apt 4L

    Close
  • Water leak

    Heavy flow

    Oct 12, 2021 · Apt 4L

    Close
  • Heat/hot water

    Apartment only

    Feb 25, 2019 · Apt 4L

    Close
  • Paint/plaster

    Wall

    Jan 11, 2019 · Apt 3R

    Close
  • Heat/hot water

    Apartment only

    Jan 11, 2019 · Apt 3R

    Close
  • Unsanitary condition

    Pests

    Sep 28, 2017 · Apt 3L

    Close
  • Unsanitary condition

    Pests

    Jan 17, 2017 · Apt 4L

    Close
  • Flooring/stairs

    Floor

    Jan 17, 2017 · Apt 4L

    Close
  • Paint/plaster

    Ceiling

    Jan 17, 2017 · Apt 4L

    Close
  • Plumbing

    Water-leaks

    Nov 21, 2013 · Apt 3L

    Close
Show 14 more ↓
  • Plumbing

    Water-leaks

    Nov 21, 2013 · Apt 3L

    Close
  • Electric

    Lighting

    Nov 21, 2013 · Apt 3L

    Close
  • Plumbing

    Water-leaks

    Nov 21, 2013 · Apt 3L

    Close
  • General

    Windows

    Aug 23, 2011 · Apt 3R

    Close
  • General

    Windows

    Aug 23, 2011 · Apt 3R

    Close
  • Plumbing

    Shower-stall

    Aug 23, 2011 · Apt 3R

    Close
  • Plumbing

    Shower-stall

    Aug 23, 2011 · Apt 3R

    Close
  • Heating

    Heat related

    Nov 3, 2010 · Apt 3L

    Close
  • Heating

    Heat related

    Jan 4, 2009 · Apt 4R

    Close
  • Heating

    Heat related

    Jan 4, 2009 · Apt 4R

    Close
  • Heating

    Heat related

    Dec 22, 2008 · Apt 4R

    Close
  • Heating

    Heat related

    Dec 4, 2008 · Apt 4R

    Close
  • Nonconst

    Rubbish

    Oct 28, 2008 · Apt 4R

    Close
  • Nonconst

    Vermin

    Oct 28, 2008 · Apt 4R

    Close

Sales history

No recorded sales in our data

Sales come from the NYC Department of Finance rolling sales file.

Building details

Building type
Mixed residential and retail building (S5)
Year built
1931
Floors
4
Residential units
6
Building area
6,500 ft²
Lot area
2,500 ft²
Zoning
R6
Community board
304
Council district
34
Block / lot
3220 / 2
Assessed value
$436,950
Landmark / historic district
No

HPD registration #330846, last renewed Jul 24, 2025.

Questions about 307 Knickerbocker Avenue

Who owns 307 Knickerbocker Avenue?

The owner of record in NYC Department of City Planning PLUTO data is Ambrosino Equities LLC.

Does 307 Knickerbocker Avenue have violations?

Yes. NYC HPD has recorded 44 housing violations at this property.

Is 307 Knickerbocker Avenue rent stabilized?

NYC Department of Finance tax bills listed 6 rent-stabilized units here in 2024 (about 100% of its 6 apartments). To confirm a specific apartment, request its rent history from NYS Homes and Community Renewal.

When was 307 Knickerbocker Avenue built?

City records list 1931 as the year it was built.

How many apartments are in 307 Knickerbocker Avenue?

It has 6 residential units and 7 units in total.

Source: NYC Open Data (DCP PLUTO, HPD, DOB, ECB/OATH, DOF). Records can lag the city's systems. Data refreshed weekly.