638 Classon Avenue
Brooklyn, NY 11238BBL 3-01141-0045Map
Owner of record: Classon Development LLC
638 Classon Avenue is a mixed residential and retail building built in 1930 in Brooklyn, 11238. It has 6 residential units across 4 floors. The owner of record is Classon Development LLC. HPD has recorded 16 housing violations here, most recently on May 4, 2026. 1 of the 16 most recent violations are still open. City tax records listed 8 rent-stabilized apartments here in 2024.
- HPD violations
- 16
- DOB violations
- 2
- ECB violations
- 0
- HPD complaints
- 22
What to know
No open immediately-hazardous violations among recent records.
Date of the most recent HPD inspection that found a problem.
No balance due on recent ECB violations.
Rent stabilization
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.
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 · 16
- 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 - 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 - BHazardous
Remove all encumbrances consisting of bicycles at public hall, 3rd story
May 23, 2024
Closed — Violation dismissed - BHazardous
Remove all encumbrances consisting of household items at public hall, 2nd story
May 23, 2024
Closed — Violation dismissed - BHazardous
Remove all encumbrances consisting of bicycles and household items at public hall, 4th story
May 23, 2024
Closed — Violation dismissed - BHazardous
Remove all encumbrances consisting of household items at public hall, 1st story
May 23, 2024
Closed — Violation dismissed - ANon-hazardous
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
May 23, 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.
Feb 23, 2022
Closed — Violation dismissed
Show 6 more ↓
- 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 - BHazardous
Remove all encumbrances consisting of household items at public hall, 4th story
Mar 30, 2021
Closed — Violation dismissed - ANon-hazardous
Cleanse to the satisfaction of this department the ceramic tile surface and grouted joints of visible (mold) at south and east walls in the bathroom located at apt 1l, 1st story, apartment at south
Oct 24, 2019 · Apt 1L
Closed — Violation dismissed - ANon-hazardous
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., 1st story
Oct 24, 2019
Closed — Violation dismissed - ANon-hazardous
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 24, 2019
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 100 watts minimum required (light fixtures present)
Oct 16, 2014
Closed — Violation dismissed
DOB building violations · 2
- 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
ECB violations · 0
No ECB violations on record
Complaints
- Water leak
Heavy flow
May 2, 2026 · Apt 1R
Close - Heat/hot water
Entire building
Dec 8, 2025 · Apt BLDG
Close - Electric
Power outage
Dec 8, 2025 · Apt BLDG
Close - Heat/hot water
Apartment only
Nov 15, 2024 · Apt 4R
Close - Plumbing
Radiator
Nov 13, 2024 · Apt 4R
Close - Heat/hot water
Apartment only
Feb 20, 2024 · Apt 4R
Close - Plumbing
Radiator
Feb 20, 2024 · Apt 4R
Close - Heat/hot water
Entire building
Feb 7, 2024 · Apt 2L
Close - Plumbing
Basin/sink
Feb 7, 2024 · Apt 4R
Close - Unsanitary condition
Garbage/recycling storage
Jul 7, 2023 · Apt BLDG
Close
Show 12 more ↓
- Safety
Fire escape
Jul 7, 2023 · Apt BLDG
Close - Flooring/stairs
Floor
Jun 12, 2023 · Apt 1R
Close - Flooring/stairs
Floor
Jun 12, 2023 · Apt 1R
Close - Paint/plaster
Ceiling
Jun 9, 2023 · Apt 4L
Close - Heat/hot water
Entire building
Mar 29, 2021 · Apt 4R
Close - Unsanitary condition
Mold
Oct 19, 2019 · Apt 1L
Close - Water leak
Heavy flow
Dec 7, 2018 · Apt 4R
Close - Door/window
Window frame
Dec 7, 2018 · Apt 4R
Close - Heat/hot water
Apartment only
Dec 7, 2018 · Apt 4R
Close - Heat/hot water
Apartment only
Jan 5, 2018 · Apt 3R
Close - Heat/hot water
Apartment only
Jan 31, 2015 · Apt 1L
Close - Heat/hot water
Apartment only
Jan 31, 2015 · Apt 1L
Close
Sales history
No recorded sales in our data
Building details
- Building type
- Mixed residential and retail building (S9)
- Year built
- 1930
- Floors
- 4
- Residential units
- 6
- Building area
- 7,190 ft²
- Lot area
- 2,875 ft²
- Zoning
- R6A
- Community board
- 308
- Council district
- 35
- Block / lot
- 1141 / 45
- Assessed value
- $966,600
- Landmark / historic district
- No
HPD registration #335753, last renewed Sep 29, 2025.
Questions about 638 Classon Avenue
Who owns 638 Classon Avenue?
The owner of record in NYC Department of City Planning PLUTO data is Classon Development LLC.
Does 638 Classon Avenue have violations?
Yes. NYC HPD has recorded 16 housing violations at this property.
Is 638 Classon Avenue rent stabilized?
NYC Department of Finance tax bills listed 8 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 638 Classon Avenue built?
City records list 1930 as the year it was built.
How many apartments are in 638 Classon Avenue?
It has 6 residential units and 8 units in total.
Source: NYC Open Data (DCP PLUTO, HPD, DOB, ECB/OATH, DOF). Records can lag the city's systems. Data refreshed weekly.