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
No open immediately-hazardous violations among recent records.
HPD has not cited this building.
No balance due on recent ECB violations.
Rent stabilization
No rent-stabilized units in 2018–2024 tax bills
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
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.