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764 Classon Avenue, Brooklyn, NY 11238

BBL 3011740037 (Borough 3, Block 1174, Lot 37) · BIN 3259313 · Last updated:

Summary · as of November 5, 2026

764 Classon Avenue (Brooklyn, NY 11238; tax lot BBL 3011740037) is an 8-unit walk-up apartment building (building class C1: walk-up apartments, more than six families, no stores), built around 1910, on a 2,667 sq ft lot zoned R6A. City tax records list the owner as 764 CLASSON AVE HOUSING CORP. The Department of Finance's final market value for tax year 2027 is $2,003,000. As of November 5, 2026, NYC Open Data shows two OATH tickets with an unpaid balance. There was one 311 request in the past 12 months and no HPD complaints since 2019. (Source: NYC Open Data — DOB, HPD, OATH, DOF, DCP and ACRIS datasets — compiled by NYC Property Facts.)

Owner of record
764 CLASSON AVE HOUSING CORP
Building class
C1 · Walk-up apartments, more than six families, no stores
Year built · units
1910 · 8 res.
Lot area · zoning
2,667 sq ft · R6A
Market value (DOF)
$2,003,000 FY2027
Last priced deed
—
BBL
3011740037
BIN
3259313

How to cite: NYC Property Facts, “764 Classon Avenue, Brooklyn, NY 11238 (BBL 3011740037)”, data as of 2026-11-05, https://nycpropertyfacts.com/ny/brooklyn/764-classon-avenue-3011740037. 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)
764 CLASSON AVE HOUSING CORPThe owner name on the city’s tax records. It can lag behind recent sales and is often an LLC.
Building class
C1 – Walk-up apartments, more than six families, no storesThe 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
1910Often an estimate for older buildings.
Floors
5
Units
8 residential / 8 totalResidential units are apartments; total includes stores and offices.
Buildings on lot
1
Lot size
2,667 sq ft (26.67 ft × 100 ft)
Building floor area
6,063 sq ft
Zoning
R6AThe zoning district sets what can be built and used here. Residential district.
Built vs. allowed density (FAR)
2.27 built / 3.00 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 3011740037 (Borough 3, Block 1174, Lot 37) · BIN 3259313BBL 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 2026-11-05; 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)
$2,003,000The 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
$901,350The portion of market value that taxes are calculated on (capped by law for small homes).
Taxable value (final)
$477,260Assessed value minus any exemptions.
Tax class
Tax class 2B – residential rental, 7–10 units
Tax yearRollMarket valueAssessed valueTax class
2027Final$2,003,000$901,3502B
2026Final$1,669,000$751,0502B
2025Final$1,495,000$672,7502B

Source: DOF Property Valuation and Assessment Data — city dataset updated 2026-09-14; data as of 2026-11-05

Sales & deed history 7

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.

DateTypePriceSeller (grantor)Buyer (grantee)Doc ID
1990-09-07DEED$0 / not statedGeszonowicz, Ludmila; Gerszonowicz, Elias764 Classon Av Housng CpFT_3830001567783
1986-12-09DEED$0 / not statedCity Of New YorkGerszonowicz, Elias; Gerszonowicz, LudmilaFT_3180001224918
1983-04-21DEED$0 / not stated
one deed covering 516 lots; price is for all of them
Commissioner Of FinanceNew York CityFT_3830000956383
1980-08-18DEED$0 / not statedCarr DonovanCarr Sybil; Carr DonovanBK_8030117900636
1976-03-29DEED$0 / not statedCarr Jonathan N; Bennett MaytheneCarr Donavan; Bennett KennethBK_7630083701616
1967-09-15DEED$0 / not statedAlko Home Improvements Co IncBennett Mayphene; Carr Jonathan NBK_6730052600408
1966-02-24DEED$0 / not stated
one deed covering 18 lots; price is for all of them
Goldstein Louis Exrs Of; Goldstein, Louis OAlko Home Improvement Co IncBK_6630005200229

Source: ACRIS Real Property Master — city dataset updated 2026-10-08; data as of 2026-11-05; ACRIS Real Property Legals — city dataset updated 2026-10-08; data as of 2026-11-05; ACRIS Real Property Parties — city dataset updated 2026-10-08; data as of 2026-11-05

DOB job filings 0 open of 1

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.

StatusJob #TypeFiledEst. cost
Not open
SIGNED OFF · 2010-08-12
301781828
BIS
A1 – Major alteration (changes use, egress or occupancy)2004-07-16$75,000

Source: DOB NOW: Build – Job Application Filings — city dataset updated 2026-11-01; data as of 2026-11-05; DOB Job Application Filings (BIS) — city dataset updated 2026-11-04; data as of 2026-11-05

Work permits 3

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.

IssuedExpiresJob #WorkPermit status
2007-02-072008-02-07301781828
BIS
Plumbing / PlumbingISSUED (initial)
2006-09-122007-06-27301781828
BIS
AlterationISSUED (renewal)
2006-02-142006-09-14301781828
BIS
AlterationISSUED (initial)

Source: DOB NOW: Build – Approved Permits — city dataset updated 2026-11-02; data as of 2026-11-05; DOB Permit Issuance (BIS) — city dataset updated 2026-10-31; data as of 2026-10-31

DOB violations 0 active of 4

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).

StatusIssuedTypeDescriptionNumber
Resolved/dismissed
V*-DOB VIOLATION - DISMISSED
2009-12-31LBLVIO-LOW PRESSURE BOILER BOILER REQUIREDV*123109LBLVIO18267
Resolved/dismissed
V*-DOB VIOLATION - DISMISSED
2006-01-06LL6291-LOCAL LAW 62/91 - BOILERS BOILER REQUIREDV*010606LL629112280
Resolved/dismissed
V*-DOB VIOLATION - DISMISSED
2004-02-13LL6291-LOCAL LAW 62/91 - BOILERS BOILER REQUIREDV*021304LL629114461
Resolved/dismissed
V*-DOB VIOLATION - DISMISSED
2003-03-19LL6291-LOCAL LAW 62/91 - BOILERS BOILER REQUIREDV*031903LL629114205

Source: DOB Violations — city dataset updated 2026-11-02; data as of 2026-11-05

ECB violations (DOB) 0 active of 2

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.

StatusIssuedSeverityWhat it was forPenalty / paid / balanceECB #
Resolved
Hearing: STIPULATION/IN-VIO · Certification: CERTIFICATE ACCEPTED
1989-06-01Non-HazardousALTERED BUILDING OCCUPIED WITHOUT A VALID C OF O. REMEDY: DISCONTINUE ILLEGAL USE AND OBTAIN A C OF O.$250 / $250 / $034026724M
Resolved
Hearing: IN VIOLATION · Certification: CERTIFICATE ACCEPTED
2004-06-28Non-HazardousB4B,4A,19B$400 / $400 / $032044932N

Source: DOB ECB Violations — city dataset updated 2026-10-31; data as of 2026-11-05

OATH tickets (all agencies) 2 unpaid of 18

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
DEFAULTED · DEFAULTED
2018-09-21Police DepartmentOPEN CONTAINER CONSUMPTION OF ALCOHOL ON STREETSRIVERA$25 / $0 / $250201366440
Unpaid balance Default
DEFAULTED · DEFAULTED
2018-08-16Police DepartmentOPEN CONTAINER CONSUMPTION OF ALCOHOL ON STREETSFIGUEROA$25 / $0 / $250201369347
Hearing pending
ASSIGNED
2026-09-22Pcs - DohmhFAIL TO ELIMINATE RODENT INFESTATION SHOWN BY ACTIVE RODENT SIGNS 2NDHOUSING CORP$600 / $0 / $6000803996050
No balance due
PAID IN FULL
2026-06-25Pcs - DohmhFAIL TO ELIMINATE RODENT INFESTATION SHOWN BY ACTIVE RODENT SIGNS 1STHOUSING CORP$300 / $300 / $00803884630
No balance due
PAID IN FULL
2025-10-20Sanitation OthersFAILURE TO CLEAN 18 INCHES INTO STREET764 CLASSON AVE HOUSING CORP$50 / $50 / $0049331297M
No balance due
PAID IN FULL
2025-09-25Pcs - DohmhFAIL TO ELIMINATE RODENT INFESTATION SHOWN BY ACTIVE RODENT SIGNS 1STCORP$300 / $300 / $00803628028
No balance due
PAID IN FULL · IN VIOLATION
2024-08-28Pcs - DohmhFAIL TO ELIMINATE RODENT INFESTATION SHOWN BY ACTIVE RODENT SIGNS 1ST$300 / $300 / $00803175350
No balance due
PAID IN FULL
2024-05-18Sanitation OthersFAILURE TO CLEAN 18 INCHES INTO STREET764 CLASSON AVE HOUSING CORP$50 / $50 / $0048247784L
No balance due
PAID IN FULL
2024-05-15Sanitation OthersFAILURE TO CLEAN 18 INCHES INTO STREET764 CLASSON AVE HOUSING CORP$50 / $50 / $0048247780Y
No balance due
PAID IN FULL
2021-08-11Sanitation OthersFAILURE TO CLEAN 18 INCHES INTO STREET764 CLASSON AVE HOUSING CORP$100 / $100 / $0047258667J
No balance due
PAID IN FULL
2021-08-02Sanitation OthersLOOSE RUBBISH764 CLASSON AVE HOUSING CORP$100 / $100 / $0047258655M
No balance due
PAID IN FULL
2019-12-26Sanitation OthersFAILURE TO CLEAN 18 INCHES INTO STREET764 CLASSON AVE HOUSING CORP$100 / $100 / $00210191897

Showing 12 of 18 records. The API and the source dataset have the full list.

Source: OATH Hearings Division Case Status — city dataset updated 2026-11-02; data as of 2026-11-05

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
221775
Last registered
2026-09-13
Registration valid until
2027-09-01 CurrentRegistrations must be renewed every year.
RoleNameCompanyBusiness city
AgentElias GerszonowiczBrooklyn, Ny
ShareholderElias GerszonowiczBrooklyn, Ny
HeadofficerElias GerszonowiczBrooklyn, Ny
ShareholderLudmila GerszonowiczBrooklyn, Ny
OfficerElias GerszonowiczBrooklyn, Ny
Corporateowner764 CLASSON AVE HOUSING COBrooklyn, Ny
SitemanagerElias Gerszonowicz

Source: HPD Multiple Dwelling Registrations — city dataset updated 2026-11-04; data as of 2026-11-05; HPD Registration Contacts — city dataset updated 2026-11-04; data as of 2026-11-05

HPD housing-code violations 0 open of 5

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
Closed
Violation Dismissed · 2021-05-25
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.
Closed
Violation Dismissed · 2020-01-08
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 · 2018-09-27
I2017-11-20§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
Closed
Violation Dismissed · 2016-12-01
I2016-11-04SECTION27-2107 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 P
Closed
Violation Dismissed · 2015-01-23
B2014-10-17SECTION 27-2040 ADM CODE 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)

Source: HPD Housing Maintenance Code Violations — city dataset updated 2026-11-05; data as of 2026-11-05

HPD complaints 0

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.

No records found in this dataset for this lot.

Source: HPD Housing Maintenance Code Complaints and Problems — city dataset updated 2026-11-05; data as of 2026-11-05

311 requests (last 12 months) 1

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
2026-09-20DPRMaintenance or Facility – Rodent SightingClosed2026-09-29

Source: 311 Service Requests from 2020 to Present — city dataset updated 2026-11-05; data as of 2026-11-05

Nearby properties

On Classon Ave

Same tax block (1174)

All properties on Classon Ave, Brooklyn · All of Brooklyn 11238

Open-item counts as of November 5, 2026; each section lists its own dataset date. Machine-readable: JSON API · Markdown · Plain text · API & MCP docs