420 Classon Avenue

Brooklyn, NY 11238BBL 3-01972-7501Map

420 Classon Avenue is a condominium built in 1899 in Brooklyn, 11238. It has 12 residential units across 3 floors. The owner of record is Unavailable Owner. HPD has recorded 6 housing violations here, most recently on June 9, 2025.

HPD violations: 6
DOB violations: 14
ECB violations: 0
HPD complaints: 12

What to know

Good

No open Class C

No open immediately-hazardous violations among recent records.

Good

Last violation Jun 9, 2025

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 · 6

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.
Jun 9, 2025
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 4, 2016
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

DOB building violations · 14

Low pressure boiler boiler required
Violation issued-failure to file 2018 external low pressure inspection
Jun 20, 2023
Dob violation - active
Low pressure boiler boiler required
Violation issued-failure to file 2018 external low pressure inspection
Jun 20, 2023
Dob violation - active
Low pressure boiler boiler required
Violation issued-failure to file 2019 external low pressure inspection
Jun 20, 2023
Dob violation - active
Low pressure boiler boiler required
Violation issued-failure to file 2019 external low pressure inspection
Jun 20, 2023
Dob violation - active
Low pressure boiler boiler required
Violation issued-failure to file 2022 external low pressure inspection
Apr 25, 2023
Dob violation - active
Low pressure boiler boiler required
Violation issued-failure to file 2022 external low pressure inspection
Apr 25, 2023
Dob violation - active
Low pressure boiler boiler required
Violation issued for failure to file annual boiler 2017 inspection report
Nov 8, 2019
Dob violation - active
Low pressure boiler boiler required
Violation issued for failure to file annual boiler 2017 inspection report
Nov 8, 2019
Dob violation - active
Low pressure boiler boiler required
Violation issued for failure to file annual boiler 2011 inspection report
Mar 1, 2013
Dob violation - active
Low pressure boiler boiler required
Violation issued for failure to file annual boiler 2011 inspection report
Mar 1, 2013
Dob violation - active

Show 4 more ↓

Low pressure boiler boiler required
Violation issued for failure to file annual boiler 2010 inspection report
Dec 13, 2011
Dob violation - active
Low pressure boiler boiler required
Violation issued for failure to file annual boiler 2010 inspection report
Dec 13, 2011
Dob violation - active
Low pressure boiler boiler required
Lblvio-low pressure boiler boiler required
Dec 31, 2009
Dob violation - dismissed
Low pressure boiler boiler required
Lblvio-low pressure boiler boiler required
Dec 31, 2009
Dob violation - dismissed

ECB violations · 0

No ECB violations on record

Complaints

Heating
Heat related
Nov 25, 2013 · Apt B
Close
Heating
Heat related
Nov 25, 2013 · Apt B
Close
Heating
Heat related
Nov 20, 2013 · Apt B
Close
Heating
Heat related
Oct 24, 2010 · Apt B
Close
Heating
Heat related
Jan 31, 2010 · Apt 3C
Close
Appliance
Sprinker cert
Jul 26, 2004
Close
Appliance
Sprinker cert
Jul 26, 2004
Close
Appliance
Sprinker cert
Jul 26, 2004
Close
General
Stairs
Aug 12, 2003 · Apt N/A
Close
Plumbing
Water supply
Jun 30, 2003 · Apt .
Close

Show 2 more ↓

Plumbing
Water supply
Jun 30, 2003 · Apt .
Close
Plumbing
Water supply
Jun 30, 2003 · Apt .
Close

Sales history

No recorded sales in our data

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

Building details

Building type: Condominium (R2)
Year built: 1899
Floors: 3
Residential units: 12
Building area: 9,175 ft²
Lot area: 4,742 ft²
Zoning: R6B
Community board: 302
Council district: 35
Block / lot: 1972 / 7501
Assessed value: $910,800
Landmark / historic district: No

HPD registration #333847, last renewed Sep 23, 2025.

Questions about 420 Classon Avenue

Who owns 420 Classon Avenue?

The owner of record in NYC Department of City Planning PLUTO data is Unavailable Owner.

Does 420 Classon Avenue have violations?

Yes. NYC HPD has recorded 6 housing violations at this property.

Is 420 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 420 Classon Avenue built?

City records list 1899 as the year it was built.

How many apartments are in 420 Classon Avenue?

It has 12 residential units.

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