451 Classon Avenue

Brooklyn, NY 11238BBL 3-01973-0001Map

451 Classon Avenue is a mixed residential and retail building built in 1930 in Brooklyn, 11238. It has 3 residential units across 4 floors. The owner of record is 451 Classon Avenue LLC. HPD has recorded 30 housing violations here, most recently on May 4, 2026. 16 of the 30 most recent violations are still open.

HPD violations: 30
DOB violations: 3
ECB violations: 6
HPD complaints: 15

What to know

Concern

5 open Class C

Immediately hazardous issues among recent violations are still open.

Good

Last violation May 4, 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

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 · 30

ANon-hazardous
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 4, 2026
Open — Nov sent out
IInformation / order
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.
Nov 20, 2025
Open — Info nov sent out
IInformation / order
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.
Nov 29, 2024
Closed — Violation dismissed
ANon-hazardous
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, 2024
Closed — Violation dismissed
IInformation / order
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.
Nov 22, 2023
Closed — Violation dismissed
ANon-hazardous
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.
Mar 22, 2023
Closed — Violation dismissed
IInformation / order
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.
Nov 14, 2022
Closed — Violation dismissed
ANon-hazardous
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 23, 2022
Closed — Violation dismissed
IInformation / order
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, 2022
Closed — Violation dismissed
ANon-hazardous
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 7, 2021
Closed — Violation dismissed

Show 20 more ↓

IInformation / order
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.
Apr 7, 2021
Closed — Violation dismissed
IInformation / order
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 29, 2019
Closed — Violation dismissed
IInformation / order
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 16, 2018
Closed — Violation dismissed
IInformation / order
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.
Nov 20, 2017
Closed — Violation dismissed
IInformation / order
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 8, 2015
Closed — Violation dismissed
IInformation / order
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 18, 2015
Closed — Violation dismissed
BHazardous
Provide adequate lighting at or near the outside of the front entranceway of the building and keep same burning from sunset every day to sunrise on the day following no fixtures present 100 watts required. at front areaway
Nov 25, 2001
Open — Nov sent out
CImmediately hazardous
Provide ready access to buildings heating system door locked at boiler room, cellar
Aug 21, 2000
Open — Nov sent out
BHazardous
Repair the roof so that it will not leak over ceilings in the entire apartment located at apt 3, 4th story
Apr 19, 2000 · Apt 3
Open — Nov sent out
CImmediately hazardous
Provide hot water at all hot water fixtures kitchen and bathroom fixtures in the entire apartment located at apt 3, 4th story
Apr 19, 2000 · Apt 3
Open — Nov sent out
BHazardous
Properly repair the broken or defective lock at entrance edoor to apt. in the foyer located at apt 3, 4th story
Apr 19, 2000 · Apt 3
Open — Nov sent out
BHazardous
Repair the leaky and/or defective faucets bath tub in the bathroom located at apt 3, 4th story
Apr 19, 2000 · Apt 3
Open — Nov sent out
BHazardous
Replace with new the missing cover to wall switch in the bathroom located at apt 3, 4th story
Apr 19, 2000 · Apt 3
Open — Nov sent out
BHazardous
Remove all obstructions and repair all defects in waste line at wash basin in the bathroom located at apt 3, 4th story
Apr 19, 2000 · Apt 3
Open — Nov sent out
ANon-hazardous
Repair the broken or defective plastered surfaces and paint in uniform color walls and ceilings in the entire apartment located at apt 3, 4th story
Apr 19, 2000 · Apt 3
Open — Nov sent out
BHazardous
Fire egress defective. remove obstructing bars or gates from window to fire escape ... in the kitchen located at apt 3, 4th story
Apr 19, 2000 · Apt 3
Open — Nov sent out
CImmediately hazardous
Remove the illegal fastening double cylinder key operated lock at entrance door to bldg. at lobby, 1st story
Apr 19, 2000
Open — Nov sent out
CImmediately hazardous
Provide hot water at all hot water fixtures kitchen and bathroom fixtures in the entire apartment located at apt 1a, 2nd story
Apr 19, 2000 · Apt 1A
Open — Nov sent out
BHazardous
Fire egress defective. remove obstructing bars or gates from window to fire escape ... in the kitchen located at apt 1a, 2nd story
Apr 19, 2000 · Apt 1A
Open — Nov sent out
CImmediately hazardous
Abate the nuisnace consisting of rodents evidence of rats present in the entire apartment located at apt 1a, 2nd story
Apr 19, 2000 · Apt 1A
Open — Nov sent out

DOB building violations · 3

Construction other optional
Ftm-exp4 parapet @main roof in disrepair w/missing coping &outward bulge @exp 1/4 end,dtrioratd brcks &mortar @multi loctn,&loose outward displacd brcks @exp 3/4 cornr.1stry setback @exp3 extreme disrepair comply with dob violation 031822feu30303bs immediately
May 9, 2023
Dob violation - active
Construction other optional
Structure rendered non-compliant. at the time of the inspection observ ed bulging wall
Mar 18, 2022
Dob violation - active
Construction other optional
Ftm-exp4 parapet @main roof in disrepair w/missing coping &outward bulge @exp1/4 end,dtrioratd brcks &mortar @multi loctn,&looseoutward displacd brcks @exp3/4 cornr.1stry setback @exp3 extrme disrpr nyspe strctrl engnr-immed evalu entire bldg& dsgn rprs.file prmts by 4/18/22.obtn prmt&strt wrk by 5/2/22.complt by 6/6/22
Mar 18, 2022
Dob violation - active

ECB violations · 6

Class - 1
Failure to maintain building in code compliant matter. noted: facade at exp-1 in state of disrepair with missing bricks and step cracks., repair and/replace
Jan 9, 2026 · Penalty $2,500
Active
Class - 2
Failure to maintain building in a code-compliant manner. atoi, i observed defects on the facade. on the rs exp-4 loose bricks, parapet leaning inward, missing mortar at the joints, rotten wood cornice at the fr
Nov 10, 2025 · Penalty $1,250
Active
Class - 1
Failure to maintain building wall(s) or appurtenances; noted: observed section of the exterior bricks at right side 4th floor rear area are loose/bulging with a potential to fall. cracks with missing bricks a 1
May 9, 2023 · Penalty $12,500
Active
Class - 2
Failure to safeguard all person and property. at time of inspection, 4 workers were observed engaged in construction activity at the 2nd & 3rd floor reconstruction of exterior brick facade bearing wall adjacent
Aug 1, 2022 · Penalty $10,000
Active
Class - 2
Work does not conform to approved construction documents. at time of inspection, observed premises under alt # b00714306 for temporary shoring of building not in-compliance as indicated on dob approved plans. s
Aug 1, 2022 · Penalty $6,250
Active
Non-hazardous
Work without a permit: in that alteration of entire building in cellar, is being conducted without a permit. remedy: stop all work obtain permit if feasible or restore premises to prior legal condition,.
Jun 28, 1991 · Penalty $1,000
Resolve

Complaints

Unsanitary condition
Garbage/recycling storage
Mar 15, 2025 · Apt BLDG
Close
Unsanitary condition
Mold
Nov 28, 2021 · Apt HALLWA
Close
Plumbing
Water supply
Feb 6, 2017 · Apt 1
Close
Heating
Heat related
Dec 13, 2004 · Apt 1
Close
Heating
Heat related
Dec 10, 2004 · Apt 1
Close
Heating
Heat related
Oct 5, 2004 · Apt BLDG
Close
Heating
Heat related
Sep 9, 2004 · Apt BLDG
Close
Nonconst
Janitor/super
Sep 9, 2004 · Apt BLDG
Close
Heating
Heat related
Sep 1, 2004 · Apt BLDG
Close
Heating
Heat related
Aug 10, 2004 · Apt NO
Close

Show 5 more ↓

Heating
Heat related
Jun 26, 2004 · Apt BLDG
Close
Heating
Heat related
Jun 6, 2004 · Apt BLDG
Close
Plumbing
Water supply
May 20, 2004 · Apt BLDG
Close
Heating
Heat related
May 10, 2004 · Apt BLDG
Close
Heating
Heat related
May 4, 2004 · Apt BLDG.
Close

Sales history

Date	Price	Type	Units
Jul 2, 2026	$1,500,000	Rentals - 4-10 unit	4

Building details

Building type: Mixed residential and retail building (S3)
Year built: 1930
Floors: 4
Residential units: 3
Building area: 2,946 ft²
Lot area: 1,254 ft²
Zoning: R6B
Community board: 303
Council district: 36
Block / lot: 1973 / 1
Assessed value: $623,700
Landmark / historic district: No

HPD registration #852067, last renewed Dec 19, 2024.

Questions about 451 Classon Avenue

Who owns 451 Classon Avenue?

The owner of record in NYC Department of City Planning PLUTO data is 451 Classon Avenue LLC.

Does 451 Classon Avenue have violations?

Yes. NYC HPD has recorded 30 housing violations at this property.

Is 451 Classon 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 451 Classon Avenue built?

City records list 1930 as the year it was built.

How many apartments are in 451 Classon Avenue?

It has 3 residential units and 4 units in total.

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