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417 Classon Avenue, Brooklyn, NY 11238

BBL 3019707503 (Borough 3, Block 1970, Lot 7503) · BIN 3056411 · Last updated:

Summary · as of October 31, 2026

417 Classon Avenue (Brooklyn, NY 11238; tax lot BBL 3019707503) is a 5-unit condominium (building class R1: condominium (subtype R1)), built around 1930, on a 1,280 sq ft lot zoned R6B. City tax records list the owner as UNAVAILABLE OWNER. As of October 31, 2026, NYC Open Data shows 11 open HPD violations and three OATH tickets with an unpaid balance. There were 10 311 requests in the past 12 months and two HPD complaints since 2019. (Source: NYC Open Data — DOB, HPD, OATH, DOF, DCP and ACRIS datasets — compiled by NYC Property Facts.)

Owner of record
UNAVAILABLE OWNER
Building class
R1 · Condominium
Year built · units
1930 · 5 res.
Lot area · zoning
1,280 sq ft · R6B
Market value (DOF)
$0 FY2027
Last priced deed
—
BBL
3019707503
BIN
3056411

How to cite: NYC Property Facts, “417 Classon Avenue, Brooklyn, NY 11238 (BBL 3019707503)”, data as of 2026-10-31, https://nycpropertyfacts.com/ny/brooklyn/417-classon-avenue-3019707503. Source: NYC Open Data.

Lot & building

Basic facts about the tax lot and building from the city’s PLUTO database.

Owner (as listed by the city)
UNAVAILABLE OWNERThe owner name on the city’s tax records. It can lag behind recent sales and is often an LLC.
Building class
R1 – Condominium (subtype R1)The Department of Finance’s category for what kind of building this is.
Land use
Multi-family walk-up buildingsCity Planning’s broad category of how the lot is used.
Year built
1930Often an estimate for older buildings.
Floors
—
Units
5 residential / 5 totalResidential units are apartments; total includes stores and offices.
Buildings on lot
1
Lot size
1,280 sq ft (16 ft × 80 ft)
Building floor area
5,251 sq ft
Zoning
R6BThe zoning district sets what can be built and used here. Residential district.
Built vs. allowed density (FAR)
4.10 built / 2.00 max residentialFloor Area Ratio = building floor area ÷ lot area. If built FAR is below the maximum, zoning may allow more floor area (other rules apply).
Identifiers
BBL 3019707503 (Borough 3, Block 1970, Lot 7503) · BIN 3056411BBL identifies the tax lot; BIN identifies each building (from DOB/HPD/footprint records).

Source: PLUTO (Dept. of City Planning) — city dataset updated 2026-08-24; data as of 2026-11-02; Building Footprints — city dataset updated 2026-10-25; data as of 2026-11-01

Tax assessment

How the Department of Finance values this lot for property tax.

Market value (tax year 2027, final roll)
$0The Department of Finance’s estimate of value for tax purposes. It is not an appraisal and is often far from the sale price.
Assessed value
$0The portion of market value that taxes are calculated on (capped by law for small homes).
Tax class
Tax class 2 – residential, 4+ units
Tax yearRollMarket valueAssessed valueTax class
2027Final$0$02
2026Final$0$02
2025Final$0$02

Source: DOF Property Valuation and Assessment Data — city dataset updated 2026-09-14; data as of 2026-11-02

Sales & deed history 0

Deeds recorded with the City Register (ACRIS). A deed transfers ownership. A $0 or very low price usually means a transfer between related parties, an estate, or a refinance-related transfer, not a market sale. This is not a title search; mortgages, liens and other documents are not shown.

No records found in this dataset for this lot.

Source: ACRIS Real Property Master — city dataset updated 2026-10-08; data as of 2026-11-02; ACRIS Real Property Legals — city dataset updated 2026-10-08; data as of 2026-11-02; ACRIS Real Property Parties — city dataset updated 2026-10-08; data as of 2026-11-02

DOB job filings 0 open of 0

A “job” is an application to the Department of Buildings to do construction work. A job marked Permitted, not signed off had a work permit issued but the city has no record of final sign-off (inspection/completion). Old jobs left in this state are common and appear in buyer and lender due diligence; the work may or may not have been done.

No records found in this dataset for this lot.

Source: DOB NOW: Build – Job Application Filings — city dataset updated 2026-11-01; data as of 2026-11-02; DOB Job Application Filings (BIS) — city dataset updated 2026-10-30; data as of 2026-10-31

Work permits 0

Individual permits issued under DOB jobs (one job can have several permits, e.g. plumbing and construction). Permit expiration alone does not mean the job was completed or signed off.

No records found in this dataset for this lot.

Source: DOB NOW: Build – Approved Permits — city dataset updated 2026-11-02; data as of 2026-11-02; DOB Permit Issuance (BIS) — city dataset updated 2026-10-31; data as of 2026-10-31

DOB violations 0 active of 0

Violations issued by the Department of Buildings for building-code or zoning conditions. Active means DOB has not recorded the violation as resolved or dismissed. Many active DOB violations are old (e.g. elevator or boiler inspection paperwork).

No records found in this dataset for this lot.

Source: DOB Violations — city dataset updated 2026-11-02; data as of 2026-11-02

ECB violations (DOB) 0 active of 0

DOB violations that go to a hearing at OATH (formerly the Environmental Control Board) and can carry fines. Active or Resolved follows the DOB violation status field. The hearing status is about the hearing and its penalty: written off means the city stopped collecting the fine, not that the condition was corrected. A balance due is a fine the city says is unpaid.

No records found in this dataset for this lot.

Source: DOB ECB Violations — city dataset updated 2026-10-31; data as of 2026-11-02

OATH tickets (all agencies) 3 unpaid of 10

Summonses heard at the Office of Administrative Trials and Hearings, from agencies like Sanitation, Buildings, Fire and Health, linked to this lot’s block and lot. Default means the respondent did not appear at the hearing, which typically results in the maximum penalty. Tickets may be issued to tenants or businesses at the address, not just the owner. DOB ECB tickets appear here too.

StatusDateAgencyChargeRespondentImposed / paid / balanceTicket #
Unpaid balance Default
DOCKETED · DEFAULTED
2022-01-08Sanitation OthersSNOW,ICE DIRT ON SIDEWALKSLEFKOWITZ IZZY$350 / $0 / $350047025192H
Unpaid balance Default
DOCKETED · DEFAULTED
2021-02-21Sanitation OthersSNOW,ICE DIRT ON SIDEWALKSLEFKOWITZ IZZY$350 / $0 / $350047038498N
Unpaid balance Default
DEFAULTED · DEFAULTED
2019-11-12Pcs - DohmhFAIL TO ELIMINATE RODENT INFESTATION SHOWN BY ACTIVE RODENT SIGNS 1ST66 LEXINGTON AVE REALTY LLC$600 / $0 / $6000801746918
No balance due
PAID IN FULL
2020-01-21Sanitation OthersSPILLAGE FROM A RECEPTACLE 1ST OFFENSECONDO OWNER MANAGER PRESID$100 / $100 / $00210355045
No balance due
PAID IN FULL
2017-08-24Dos - Enforcement AgentsSTORAGE OF RECEPTACLESLEFKOWITZ$100 / $100 / $0044680307K
No balance due
PAID IN FULL
2017-02-24Sanitation DeptRECYC PLACED FOR COLLECTION W NON-RECYC 1 TO 8 DWELLING UNITSLEFKOWITZ$25 / $25 / —044741850Z
No balance due
PAID IN FULL
2016-07-19Dos - Enforcement AgentsSTORAGE OF RECEPTACLESLEFKOWITZ$100 / $100 / —042059402K
No balance due Default
PAID IN FULL · DEFAULT
2016-05-11Sanitation DeptNON-RECYC LEFT IN RECYC CONTAINER FOR COLLECTION 1TO8 DWELLING UNITSLEFKOWITZ$25 / $25 / —041755028M
No balance due
PAID IN FULL
2016-02-24Sanitation DeptIMPROPER MISUSED CURBSIDE RECYCLING CONTAINER 1 TO 8 DWELLING UNITSLEFKOWITZ$25 / $25 / —042058475R
No balance due
PAID IN FULL · SETTL IN-VIO
2014-12-20Dos - Enforcement AgentsSTORAGE OF RECEPTACLESLEFKOWITZ$300 / $223 / $0042176407M

Source: OATH Hearings Division Case Status — city dataset updated 2026-11-02; data as of 2026-11-02

HPD registration & contacts

Owners of most rental buildings must register with the Department of Housing Preservation and Development each year and list an owner and managing agent.

HPD building ID
221613
Last registered
2024-04-03
Registration valid until
2024-09-30 ExpiredRegistrations must be renewed every year.
RoleNameCompanyBusiness city
SitemanagerI. Lefkowitz
ShareholderI. LefkowitzBrooklyn, Ny
HeadofficerI. LefkowitzBrooklyn, Ny
OfficerI. LefkowitzBrooklyn, Ny
Corporateowner66 LEXINGTON AVE.Brooklyn, Ny
AgentI. Lefkowitz66 LEXINGTON AVE REALTYBrooklyn, Ny

Source: HPD Multiple Dwelling Registrations — city dataset updated 2026-10-28; data as of 2026-11-02; HPD Registration Contacts — city dataset updated 2026-10-28; data as of 2026-11-02

HPD housing-code violations 11 open of 26

Violations HPD inspectors issued for conditions in residential buildings (heat, leaks, mold, pests, lead paint, etc.). Class letters show how serious: Class A – non-hazardous (HPD gives 90 days to correct); Class B – hazardous (30 days to correct); Class C – immediately hazardous (24 hours to correct for most conditions); Class I – information / order (e.g. orders to register, lead or other administrative orders). Open means HPD has not recorded the condition as corrected.

StatusClassIssuedAptCondition
Open
Nov Sent Out · 2026-05-04
A2026-05-04(A) § HMC: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.
Open
Info Nov Sent Out · 2025-11-20
I2025-11-20§27-2107 ADM CODE OWNER FAILED TO FILE A VALID REGISTRATION STATEMENT WITH THE DEPARTMENT AS REQUIRED BY ADM CODE §27-2097 AND IS THEREFORE SUBJECT TO CIVIL PENALTIES, PROHIBITED FROM CERTIFYING VIOLATIONS, AND DENIED THE RIGHT TO RECOVER POSSESSION OF PREMISE
Open
Nov Sent Out · 2025-06-09
A2025-06-09(A) § HMC: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.
Open
Info Nov Sent Out · 2024-11-29
I2024-11-29§27-2107 ADM CODE OWNER FAILED TO FILE A VALID REGISTRATION STATEMENT WITH THE DEPARTMENT AS REQUIRED BY ADM CODE §27-2097 AND IS THEREFORE SUBJECT TO CIVIL PENALTIES, PROHIBITED FROM CERTIFYING VIOLATIONS, AND DENIED THE RIGHT TO RECOVER POSSESSION OF PREMISE
Open
Nov Sent Out · 2024-04-09
A2024-04-09(A) § HMC: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.
Open
Nov Sent Out · 2023-03-22
A2023-03-22(A) § HMC: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.
Open
Nov Sent Out · 2022-02-23
A2022-02-23(A) § HMC: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.
Open
Nov Sent Out · 2021-04-07
A2021-04-07(A) § HMC: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.
Open
False Certification · 2018-05-07
A2018-01-05§ 27-2045 ADM CODE POST A PROPER NOTICE OF SMOKE DETECTOR REQUIREMENTS, IN A FORM APPROVED BY THE COMMISSIONER, AT OR NEAR THE MAIL BOX MISSING AT PUBLIC HALL, 1st STORY
Open
First No Access To Re- Inspect Violation · 2018-01-04
B2008-07-083F§ 27-2089 ADM CODE THE PREMISES FORMERLY A VACANT BUILDING ARE NOW OCCUPIED BY OTHER THAN A CARETAKER WITHOUT OBTAINING A CERTIFICATE OF OCCUPANCY 3 STY WEST APT 3F ANTHONY. LOCATED AT APT 3F
Open
First No Access To Re- Inspect Violation · 2018-01-04
I1982-03-08D26-35.01 ADM CODE THE PREMISES HAVE BEEN VACATED BY AN ORDER OF THIS DEPARTMENT AND CANNOT BE REOCCUPIED EXCEPT FOR CARETAKER UNTIL A NEW CERTIFICATE OF OCCUPANCY HAS BEEN OBTAINED.
Closed
Violation Dismissed · 2024-04-04
I2023-11-22§27-2107 ADM CODE OWNER FAILED TO FILE A VALID REGISTRATION STATEMENT WITH THE DEPARTMENT AS REQUIRED BY ADM CODE §27-2097 AND IS THEREFORE SUBJECT TO CIVIL PENALTIES, PROHIBITED FROM CERTIFYING VIOLATIONS, AND DENIED THE RIGHT TO RECOVER POSSESSION OF PREMISE
Closed
Violation Dismissed · 2024-04-04
I2022-11-14§27-2107 ADM CODE OWNER FAILED TO FILE A VALID REGISTRATION STATEMENT WITH THE DEPARTMENT AS REQUIRED BY ADM CODE §27-2097 AND IS THEREFORE SUBJECT TO CIVIL PENALTIES, PROHIBITED FROM CERTIFYING VIOLATIONS, AND DENIED THE RIGHT TO RECOVER POSSESSION OF PREMISE
Closed
Violation Dismissed · 2024-04-04
I2022-02-23§27-2107 ADM CODE OWNER FAILED TO FILE A VALID REGISTRATION STATEMENT WITH THE DEPARTMENT AS REQUIRED BY ADM CODE §27-2097 AND IS THEREFORE SUBJECT TO CIVIL PENALTIES, PROHIBITED FROM CERTIFYING VIOLATIONS, AND DENIED THE RIGHT TO RECOVER POSSESSION OF PREMISE
Closed
Violation Dismissed · 2024-04-04
I2021-04-07§27-2107 ADM CODE OWNER FAILED TO FILE A VALID REGISTRATION STATEMENT WITH THE DEPARTMENT AS REQUIRED BY ADM CODE §27-2097 AND IS THEREFORE SUBJECT TO CIVIL PENALTIES, PROHIBITED FROM CERTIFYING VIOLATIONS, AND DENIED THE RIGHT TO RECOVER POSSESSION OF PREMISE
Closed
Violation Dismissed · 2024-04-04
I2019-10-29§27-2107 ADM CODE OWNER FAILED TO FILE A VALID REGISTRATION STATEMENT WITH THE DEPARTMENT AS REQUIRED BY ADM CODE §27-2097 AND IS THEREFORE SUBJECT TO CIVIL PENALTIES, PROHIBITED FROM CERTIFYING VIOLATIONS, AND DENIED THE RIGHT TO RECOVER POSSESSION OF PREMISE
Closed
Violation Dismissed · 2018-11-02
I2018-10-16§27-2107 ADM CODE OWNER FAILED TO FILE A VALID REGISTRATION STATEMENT WITH THE DEPARTMENT AS REQUIRED BY ADM CODE §27-2097 AND IS THEREFORE SUBJECT TO CIVIL PENALTIES, PROHIBITED FROM CERTIFYING VIOLATIONS, AND DENIED THE RIGHT TO RECOVER POSSESSION OF PREMISE
Closed
Violation Closed · 2018-05-07
A2018-01-05§ 27-2005 HMC: 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 AT PUBLIC HALL, 1st STORY
Closed
Violation Closed · 2018-05-07
A2018-01-05§ 27-2104 ADM CODE 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
Closed
Violation Closed · 2018-05-07
A2018-01-05§ 26-1103 ADMIN. CODE: 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. AT PUBLIC HALL, 1st STORY

Showing 20 of 26 records — open violations are listed first; the API lists every one. The API and the source dataset have the full list.

Source: HPD Housing Maintenance Code Violations — city dataset updated 2026-11-02; data as of 2026-11-02

HPD complaints 2

Complaints tenants or others made to HPD (usually via 311) about housing conditions, from 2019 onward. A complaint is not a violation; HPD may inspect and issue one.

ReceivedStatusAptProblem(s)Outcome
2024-11-13CLOSE3Door/Window – DoorAn HPD Inspector was not able to gain access to inspect this complaint. The Inspector left a card at the time of the inspection and a letter was sent from HPD after the inspection attempt to encourage
2024-10-24CLOSE1RHeat/Hot Water – Apartment OnlyHPD responded to a complaint of no heat or hot water. Heat was not required at the time of the inspection because the outside temperature was above 55° F; by law, violations can only be issued if the

Source: HPD Housing Maintenance Code Complaints and Problems — city dataset updated 2026-11-02; data as of 2026-11-02

311 requests (last 12 months) 10

Recent 311 service requests the city geocoded to this lot: noise, illegal parking, heat, sanitation and more. Anyone can file them, so they describe activity at or near the address, not necessarily the building itself.

OpenedAgencyComplaintStatusClosed
2026-10-30NYPDIllegal Parking – Blocked HydrantClosed2026-10-30
2026-09-23DHSHomeless Person Assistance – Non-ChronicClosed2026-09-23
2026-08-17DPROvergrown Tree/Branches – Hitting Phone/Cable LinesIn Progress—
2026-05-20NYPDNon-Emergency Police Matter – TrespassingClosed2026-05-20
2026-05-09NYPDEncampment – N/AClosed2026-05-09
2026-05-07TLCFor Hire Vehicle Complaint – Driver Complaint - Non PassengerIn Progress—
2026-05-07NYPDIllegal Parking – Blocked Bike LaneClosed2026-05-07
2026-04-14NYPDAnimal-Abuse – In CarClosed2026-04-14
2026-03-29TLCFor Hire Vehicle Complaint – Driver Complaint - Non PassengerClosed2026-04-03
2025-11-02NYPDIllegal Parking – Blocked HydrantClosed2025-11-02

Source: 311 Service Requests from 2020 to Present — city dataset updated 2026-11-02; data as of 2026-11-02

Nearby properties

On Classon Ave

Same tax block (1970)

All properties on Classon Ave, Brooklyn · All of Brooklyn 11238 (Prospect Heights)

Open-item counts as of October 31, 2026; each section lists its own dataset date. Machine-readable: JSON API · Markdown · Plain text · API & MCP docs