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501 Knickerbocker Avenue

Brooklyn, NY 11237BBL 3-03317-0001Map

Owner of record: NYC Department Of Education

501 Knickerbocker Avenue is a school building built in 1899 in Brooklyn, 11237. The owner of record is NYC Department Of Education. HPD has no housing violations on record for this property.

HPD violations
0
DOB violations
12
ECB violations
54
HPD complaints
3

What to know

Good
No open Class C

No open immediately-hazardous violations among recent records.

Good
No HPD violations

HPD has not cited this building.

Good
No unpaid ECB fines

No balance due on recent ECB violations.

Rent stabilization

No rent-stabilized units in 2018–2024 tax bills

Some apartments can still be regulated. Use the rent-stabilized checker or request the rent history from HCR.

Violations

Most recent first. Showing up to 50 per agency.

HPD housing violations · 0

No HPD violations on record

DOB building violations · 12

  • 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 19, 2007

    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

    Jan 6, 2006

    Dob violation - dismissed
  • Boilers boiler required

    Ll6291-local law 62/91 - boilers boiler required

    Mar 16, 1999

    Dob violation - dismissed
  • Boilers boiler required

    Ll6291-local law 62/91 - boilers boiler required

    Mar 16, 1999

    Dob violation - dismissed
  • Boilers boiler required

    Ll6291-local law 62/91 - boilers boiler required

    May 4, 1998

    Dob violation - dismissed
  • Boilers boiler required

    Ll6291-local law 62/91 - boilers boiler required

    May 4, 1998

    Dob violation - dismissed
  • Boilers boiler required

    Ll6291-local law 62/91 - boilers boiler required

    Sep 16, 1997

    Dob violation - dismissed
  • Boilers boiler required

    Ll6291-local law 62/91 - boilers boiler required

    Sep 16, 1997

    Dob violation - dismissed
Show 2 more ↓
  • Boilers boiler required

    Ll6291-local law 62/91 - boilers boiler required

    Aug 29, 1995

    Dob violation - dismissed
  • Boilers boiler required

    Ll6291-local law 62/91 - boilers boiler required

    Aug 29, 1995

    Dob violation - dismissed

ECB violations · 54

  • Class - 2

    Reissue ecb#35719741m failure to maintain building in code compliant manner.noted:at basement boiler rms.water penetration/porous to walls/floors deteriorating with spalling plaster/paint/mason to walls/floors

    May 1, 2026 · Penalty $3,125

    Active
  • Class - 2

    Reissue ecb#35719740k failure to maintain building in code compliant manner.noted:at 2nd and 4th floors all staircass uneven/lifting deteriorating throughout various areas.rem:repair and/or replace.

    May 1, 2026 · Penalty $3,125

    Active
  • Class - 2

    Failure to maintain building in code compliant manner.illumination forexits,exit discharges and public corridors per bc 1006.1;27-381.noted:at basement cafeteria 4th fl gym emergency lights not working when tes

    May 1, 2026 · Penalty $1,250

    Active
  • Class - 2

    Failure to maintain building in code-compliant manner.noted:at 4th fl hallway smoke door near rm 407 in disrepair/not closing/missing closerwhen tested.rem:repair and/or replace.

    May 1, 2026 · Penalty $1,250

    Active
  • Class - 2

    Reissue #35677522j: failure to maintain building in code-compliant manner: observed at basement level, boiler rooms, brick/masonry are deteriorated and spalling, water infiltration from foundation walls. remedy

    May 2, 2025 · Penalty $3,125

    Active
  • Class - 2

    Reissue #35671971h: failure to maintain building in code-compliant manner: observed at exp 2, 3 and 4 exterior gutter/ladder in deteriorated/rust condition. remedy: repair and/or replace.

    May 2, 2025 · Penalty $3,125

    Active
  • Class - 2

    Reissue #35677523l: failure to maintain building in code-compliant manner: observed at 2nd floors and 4th floors level staircase. one in deteriorated condition. remedy: repair and/or replace.

    May 2, 2025 · Penalty $3,125

    Active
  • Class - 2

    Reissue#35671974n failure to maintain building in code-compliant manner.at time of my inspection i observed at the cafeteria kitchen a threeburner stove top was installed without a fire suppression system,need

    May 6, 2024 · Penalty $1,562

    Resolve
  • Class - 2

    Reissue#35671973l failure to maintain building in code-compliant manner.at time of my inspection i observed at the cellar level at boiler room wall spalling brick are erroding and water logged missing masonry i

    May 6, 2024 · Penalty $1,562

    Active
  • Class - 2

    Failure to maintain building in code-compiant manner.noted:observed during inspection of boiler room walls,spalling bricks are erroding and water logged missing masonry in joints all throughout.rem:repair and/o

    Mar 14, 2023 · Penalty $625

    Active
Show 40 more ↓
  • Class - 2

    Reissue#35655078r(4/19/22)failure to maintain building in code-compliant manner.noted:observed during inspection exposure#4,gutters in disrepair sections missing and rusted.rem:repair and/or replace.

    Mar 14, 2023 · Penalty $1,562

    Resolve
  • Class - 2

    Failure to maintain building in code compliant manner.noted:observed during inspection of cafeteria kitchen a three burner stove top installed without a fire surpression system(ansul).rem:repair and/or replace

    Mar 14, 2023 · Penalty $625

    Resolve
  • Class - 2

    Failure to maintain building in code-compliant manner.noted:observed during inspection of stairwell landing from 2nd floor to 4th floor are in disrepairm,on even,ovary causing a trip hazard.rem:repair and/or re

    Mar 14, 2023 · Penalty $625

    Active
  • Class - 2

    Reissue#35557939z 4/13/2021.failure to maintain building in code compliant manner.at exp4 rear of building deteriorated/rusted ladder leaks from water filtered out by hose.remedy:repair and/or replace.

    Apr 19, 2022 · Penalty $1,562

    Resolve
  • Class - 2

    Reissue#35495612x failure to maintain bldg in code compliant manner attime of inspection. noted at rear of bldg exp#3(2)rain gutters severely rusted. remedy: comply w/code.

    Apr 13, 2021 · Penalty $1,562

    Resolve
  • Class - 2

    Reissue#35120387h failure to maintain bldg walls & on appurtenances: noted: at rear of bldg(where)a leaders that is rusted allowing water to escape. there a hole from the rust approx 3'to 4' opening.

    May 14, 2020 · Penalty $3,125

    Resolve
  • Class - 2

    Reissue 35317117r failure to maintain building walls and appurtenances. noted at exp 3 at 3rd fl level the rain leader is extremely rusted and deteriorating and has a hole in it. remedy: repair and or replace

    Apr 2, 2019

    Resolve
  • Class - 2

    Reissue #35235676y. failure to maintain bldg wall(s) or appurtenancesnoted: at exp#3, at northwest section, rain leader at 3rd story level extremely rusted, deteriorating and has a hole in it.rmdy:maintain ext

    Feb 20, 2018

    Resolve
  • Class - 2

    Failure to maintain bldg in code compliant manner:illumination for exit discharges and public corridors per b.c.1006.1;27-381.noted:observedemergency light packs throughout school were not working properly.4th

    Apr 6, 2017 · Penalty $2,500

    Resolve
  • Class - 2

    Re-issue #35200742n failure to maintain building wall(s)or appurtenances noted:observed at exposure #3in the inside corner,near the 3rd floor level,leader is damaged and corroded with a 2ft. section missing due

    Apr 6, 2017

    Resolve
  • Class - 2

    Failure to maintain bldg wall(s) or appurtenances. noted: at rear of bldg at 3rd flr level leader damage with gaping hole. rmdy: repair leader. comply with code.make repair.

    Jun 29, 2016

    Resolve
  • Class - 2

    Failure to maintain bldg in code compliant manner: use of prohibited door hardware per bc1008.1.8; 27-371(j) use of attached mechanical means of keeping doors open by use of door stops on the following door

    May 29, 2015

    Resolve
  • Class - 2

    Reissue 35093696k failure to maintain building walls or appurtenances.at rear of bldg at 3rd flr level: leader damage with gaping hole. rmdy: repair leader.

    May 29, 2015

    Resolve
  • Class - 2

    Use of prohibited door hardware per bc 1008.1.8; 27-371(j). prohibited door stops at doors to rooms 102,104,105,107,108,109 & 110. remedy: remove door stops.

    May 9, 2014

    Resolve
  • Class - 2

    Failure to maintain building walls or appurtenances. leader at rear of building damaged w/ hole at 3rd floor level (exterior wall of room 309). remedy: repair leader to house drain.

    May 9, 2014

    Resolve
  • Class - 2

    Water penetration through exterior wall into basement level at boiler area & sprinkler room. remedy: make necessary repairs.

    May 9, 2014

    Resolve
  • Class - 2

    Spalling concrete & exposed rebar in boiler room. in sprinkler room just spalling concrete. remedy: make necessary repairs.

    May 9, 2014

    Resolve
  • Class - 2

    No fire stopping per bc 712.3; 27-345. penetrations to oil tank room, boiler room & sprinkler room missing fires stopping. remedy: provide fire stopping.

    May 9, 2014

    Resolve
  • Class - 2

    Fire stairs doors not self-closing at stair e & c in basement & 3rd floor; fire stair door b & d at 3rd floor; fire stair door b at 4th floor. remedy: repair or replace doors.

    May 9, 2014

    Resolve
  • Class - 1

    Exit passageway obstructed on 4 fl noted mail boxes, computer carts tv stand in corridor. remedy: remove all obstructions

    Apr 1, 2010

    Resolve
  • Class - 2

    Auditorium/gymnasium (multi-purpose) room has vertical crack in the concrete wall on the 4th floor level. rem: repair/replace concrete wall

    Apr 2, 2009

    Resolve
  • Class - 3

    Reissue 34569872p water penetration through foundation wall adjacent to grove st basement level. remedy: water proof foundation wall.

    Jul 24, 2008

    Resolve
  • Non-hazardous

    Exterior foundation wall is porous and allowing rain water to enter the building located adjacent to grove street on basement level. remedy: water-proof foundation wall.

    Apr 13, 2007

    Resolve
  • Non-hazardous

    Re-issue # 34510272p. plaster on the ceiling is cracked located in room 303 adjacent to the windows on the 3rd floor. remedy: repair plaster ceiling.

    Apr 13, 2007

    Resolve
  • Non-hazardous

    Reissue: #34440458m basement at old ash hoist, concrete beams cracked,eroded allowing water to enter and on floor. also noted: second hatch near boiler room allowing water into basement. remedy: repair/patch

    Feb 3, 2006

    Resolve
  • Non-hazardous

    Reissue: #34281398y (partial) plaster ceiling cracked in class room 303 near windows. remedy: repair/patch ceiling.

    Feb 3, 2006

    Resolve
  • Non-hazardous

    Corridor smoke stop doors (two at each location) near classrooms: 407,402 and 105. are missing. remedy: install doors as per bldg. code.

    Feb 3, 2006

    Resolve
  • Non-hazardous

    Second floor class room 201 has approx. 12 cracked/chattered glass window panes. remedy: repair all defective panes.

    Feb 3, 2006

    Resolve
  • Non-hazardous

    Reissue #34440459y spalling plaster ceiling location:cafeteria remedy:repair defective plaster

    Mar 24, 2005

    Resolve
  • Non-hazardous

    Failure to maintain.defect is plaster ceiling in cafeteria is loose nad bulging.remedy:repair ceiling.

    Jun 8, 2004

    Resolve
  • Non-hazardous

    Failure to maintain.defect is south side chain link fence is broken.remedy:repair issue.

    Jun 8, 2004

    Resolve
  • Non-hazardous

    "reissue" (34390817m) failure to maintain defect is concrete beams around hoist in basement are crack at various location.remedy:repair concrete beams

    Jun 8, 2004

    Resolve
  • Hazardous

    Reissue. failure to maintain defect is concrete yard surface crack broken loose and bulging at various locations causing tripping hazard. remedy; repair concrete surface

    Apr 1, 2003

    Resolve
  • Hazardous

    Reissue. failure to maintain defect is concrete beams around hatch hoist in basement are crack loose and sagging. remedy; repair concrete beams.

    Apr 1, 2003

    Resolve
  • Hazardous

    Failure to maintain defects concrete structural beam cracked broken eroded and in danger of falling location basement at old ash hoist remedy make safe repair structural members

    Apr 16, 2002

    Resolve
  • Hazardous

    Failure to maintain defects are concrete yard surface cracked broken eroded loose and defective surfaces location rear play yard entire remedy make safe repair surfaces

    Apr 16, 2002

    Resolve
  • Non-hazardous

    Failure to provide 3fl number signs at stair landing on all fl.failure to provide 3 letter stairs i.d signs on all fl.rem:provide signage as epr local-law 16/84 code.

    Feb 22, 2001

    Resolve
  • Non-hazardous

    Failure to provide adequate emergency power exit lights on all fl,corridors and stairs.failure to provide emergency power to exit light on all fl,corridors stairs.failure to provide emergency power to exit/dire

    Feb 22, 2001

    Resolve
  • Non-hazardous

    Failure to maintain building exterior defects are:gate is missing on wrought iron fence a front entry to send out.remedy:replace missing gate.

    Feb 21, 2001

    Resolve
  • Hazardous

    Failure to maintain building:defects are cracked beam under old coal shute.remedy:repair immediately.

    Feb 21, 2001

    Resolve

Complaints

  • Heating

    Heat related

    Nov 5, 2012 · Apt 2A

    Close
  • Plumbing

    Toilet

    May 29, 2008 · Apt 9

    Close
  • Plumbing

    Toilet

    May 29, 2008 · Apt 9

    Close

Sales history

No recorded sales in our data

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

Building details

Building type
School building (W1)
Year built
1899
Floors
4
Residential units
—
Building area
33,600 ft²
Lot area
20,000 ft²
Zoning
R6
Community board
304
Council district
37
Block / lot
3317 / 1
Assessed value
$2,302,650
Landmark / historic district
INDIVIDUAL LANDMARK

Questions about 501 Knickerbocker Avenue

Who owns 501 Knickerbocker Avenue?

The owner of record in NYC Department of City Planning PLUTO data is NYC Department Of Education.

Does 501 Knickerbocker Avenue have violations?

NYC HPD has no housing violations on record for this property.

Is 501 Knickerbocker Avenue rent stabilized?

No rent-stabilized units appear in its 2018–2024 tax bills. Individual apartments can still be regulated, so request the rent history from NYS Homes and Community Renewal if unsure.

When was 501 Knickerbocker Avenue built?

City records list 1899 as the year it was built.

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