646 Classon Avenue
Brooklyn, NY 11238BBL 3-01141-0050Map
Owner of record: 636 Classon Assoc LP
646 Classon Avenue is a walk-up apartment building built in 1920 in Brooklyn, 11238. It has 6 residential units across 3 floors. The owner of record is 636 Classon Assoc LP. HPD has no housing violations on record for this property. City tax records listed 6 rent-stabilized apartments here in 2024.
- HPD violations
- 0
- DOB violations
- 1
- ECB violations
- 2
- HPD complaints
- 1
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
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 · 0
No HPD violations on record
DOB building violations · 1
- Boilers boiler required
Ll6291-local law 62/91 - boilers boiler required
Sep 16, 1997
Dob violation - dismissed
ECB violations · 2
- Hazardous
Boilers
May 23, 1994 · Penalty $500
Resolve - Non-hazardous
Boilers
May 23, 1994 · Penalty $250
Resolve
Complaints
- Heat/hot water
Apartment only
Oct 18, 2018 · Apt 1B
Close
Sales history
No recorded sales in our data
Building details
- Building type
- Walk-up apartment building (C2)
- Year built
- 1920
- Floors
- 3
- Residential units
- 6
- Building area
- 4,600 ft²
- Lot area
- 1,958 ft²
- Zoning
- R6A
- Community board
- 308
- Council district
- 35
- Block / lot
- 1141 / 50
- Assessed value
- $845,100
- Landmark / historic district
- No
HPD registration #360858, last renewed Aug 8, 2025.
Questions about 646 Classon Avenue
Who owns 646 Classon Avenue?
The owner of record in NYC Department of City Planning PLUTO data is 636 Classon Assoc LP.
Does 646 Classon Avenue have violations?
NYC HPD has no housing violations on record for this property.
Is 646 Classon Avenue rent stabilized?
NYC Department of Finance tax bills listed 6 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 646 Classon Avenue built?
City records list 1920 as the year it was built.
How many apartments are in 646 Classon Avenue?
It has 6 residential units.
Source: NYC Open Data (DCP PLUTO, HPD, DOB, ECB/OATH, DOF). Records can lag the city's systems. Data refreshed weekly.