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660 Classon Avenue, Brooklyn, NY 11238

BBL 3011480048 (Borough 3, Block 1148, Lot 48) · BIN 3028279 · Last updated:

Summary · as of October 31, 2026

660 Classon Avenue (Brooklyn, NY 11238; tax lot BBL 3011480048) is a 3-unit walk-up apartment building (building class C0: three-family walk-up), built around 1905, on a 2,000 sq ft lot zoned R6A. City tax records list the owner as CARLOS VASQUEZ. The Department of Finance's final market value for tax year 2027 is $1,956,000. As of October 31, 2026, NYC Open Data shows one OATH ticket with an unpaid balance. There were nine 311 requests 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
CARLOS VASQUEZ
Building class
C0 · Three-family walk-up
Year built · units
1905 · 3 res.
Lot area · zoning
2,000 sq ft · R6A
Market value (DOF)
$1,956,000 FY2027
Last priced deed
—
BBL
3011480048
BIN
3028279

How to cite: NYC Property Facts, “660 Classon Avenue, Brooklyn, NY 11238 (BBL 3011480048)”, data as of 2026-10-31, https://nycpropertyfacts.com/ny/brooklyn/660-classon-avenue-3011480048. 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)
CARLOS VASQUEZThe owner name on the city’s tax records. It can lag behind recent sales and is often an LLC.
Building class
C0 – Three-family walk-upThe 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
1905Often an estimate for older buildings.
Floors
3
Units
3 residential / 3 totalResidential units are apartments; total includes stores and offices.
Buildings on lot
1
Lot size
2,000 sq ft (20 ft × 100 ft)
Building floor area
2,400 sq ft
Zoning
R6AThe zoning district sets what can be built and used here. Residential district.
Built vs. allowed density (FAR)
1.20 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 3011480048 (Borough 3, Block 1148, Lot 48) · BIN 3028279BBL 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)
$1,956,000The 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
$117,360The portion of market value that taxes are calculated on (capped by law for small homes).
Taxable value (final)
$25,148Assessed value minus any exemptions.
Tax class
Tax class 1 – 1–3 family homes (and some small mixed-use / vacant lots)
Tax yearRollMarket valueAssessed valueTax class
2027Final$1,956,000$117,3601
2026Final$2,246,000$134,7601
2025Final$1,774,000$106,4401

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

Sales & deed history 11

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
2002-05-13DEED$0 / not statedPierre, Jerry; Holder, KathlynCalderon, Irma; Vasquez, CarlosFT_3660008696566
1997-08-01DEED$0 / not statedGunther, StevenHolder, Kathryn; Pierre, JerryFT_3730005772173
1997-03-17DEED$0 / not statedCitibank, NaGunther, StevenFT_3690005624269
1996-07-18DEED$0 / not statedYounger, Odella/Def; Nyc Environmental Control Board/Def; Laduca, Margaret White/Def; Veneble, James/Def.; Laduca, Joseph W./Def; Younger, Aida/Def; Harmon, Joyce/Def; Nys Department Of Taxation And Finance; Elliot, Irene/Ref; Nyc Parking Violation Bureau/DefCitibankFT_3870005429887
1986-10-17DEED$0 / not statedCox, Lisa LLa Duca, Margaret White; La Duca, Joseph WFT_3690001208269
1984-11-28DEED$0 / not statedPowell, AntonioCox, Lisa LFT_3420001058742
1974-08-29DEED$0 / not statedCharles WinstonPowell AntonioBK_7430073200962
1974-06-28DEED$0 / not statedSec Housing & Urban Development Wash DcCharles WinstonBK_7430071900638
1972-03-22DEED$0 / not statedFedl Natl Mtge AssnSecretary Of Housing & Urban Development Wash DcBK_7230054600255
1972-02-07DEED$0 / not statedGrispino Bernice Etal Defts; Postel Sanford RefereeFederal Natl Mtge AssnBK_7230053700387
1969-11-21DEED$0 / not statedMorris ReginaldGrispino Bernice; Grispino MichaelBK_6930037701361

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 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
PLAN EXAM - DISAPPROVED · 2004-06-29
301785218
BIS
A2 – Alteration with multiple work types (no change to use/occupancy)2004-06-28$18,000

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) 1 unpaid of 13

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
2024-03-06Dep - Bureau Of Env. CompliancIDLING OF MOTOR VEHICLE ENGINE MORE THAN THREE MINUTES 1ST OFFMOTIVE TECHNOLOGIES$1,000 / $0 / $1,300000886540Y
No balance due
PAID IN FULL
2026-08-26Sanitation OthersFAILURE TO CLEAN 18 INCHES INTO STREETCARLOS VASQUEZ$50 / $50 / $0049961768X
No balance due
PAID IN FULL · ADMIT IN-VIO
2024-08-08Dep - Bureau Of Env. CompliancIDLING OF MOTOR VEHICLE ENGINE MORE THAN THREE MINUTES 3RD AND SUBVERIZON BUSINESS NETWORK SERVI$600 / $600 / $0000956160N
No balance due
PAID IN FULL · ADMIT IN-VIO
2024-01-10Dep - Bureau Of Env. CompliancIDLING MOTOR VEHICLE ENGIN OVER 1MIN WHILE ADJACENT TO SCHOOL 3RD SUBVERIZON BUSINESS NETWORK SERVI$600 / $600 / $0000875654Z
No balance due
PAID IN FULL
2021-12-04Sanitation OthersFAILURE TO CLEAN 18 INCHES INTO STREETVASQUEZ CARLOS$50 / $50 / $0047258747J
No balance due
PAID IN FULL
2019-10-13Sanitation RecyclingSTORAGE OF RECEPTACLESVASQUEZ$100 / $100 / $0046703575Z
No balance due
PAID IN FULL
2017-12-22Sanitation OthersFAILURE TO CLEAN 18 INCHES INTO STREETVASQUEZ$100 / $100 / $00203512990
No balance due
PAID IN FULL
2017-09-09Sanitation OthersFAILURE TO CLEAN 18 INCHES INTO STREETVASQUEZ$100 / $100 / $00195779513
No balance due
PAID IN FULL
2014-05-22Dos - Enforcement AgentsSTORAGE OF RECEPTACLESVASQUEZ$100 / $100 / —042155677J
No balance due
PAID IN FULL
2012-06-11Dos - Enforcement AgentsNON-RECYC LEFT IN RECYC CONTAINER FOR COLLECTION(1TO8 DWELLING UNITS)VASQUEZ$25 / $25 / —041456288Z
No balance due Default
PAID IN FULL · DEFAULT
2001-04-19$300 / $341 / —0116727793
No balance due Default
PAID IN FULL · DEFAULT
2000-10-07$300 / $327 / —0117493173

Showing 12 of 13 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 2026-11-02

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
221749
Last registered
2026-01-13
Registration valid until
2026-09-01 ExpiredRegistrations must be renewed every year.
RoleNameCompanyBusiness city
AgentIrma CalderonBrooklyn, Ny
JointownerIrma CalderonStaten Island, Ny
SitemanagerCarlos Vasquez Vasquez
HeadofficerIrma CalderonBrooklyn, Ny
OfficerCarlos VasquezBrooklyn, Ny
JointownerCarlos VasquezStaten Island, 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 0 open of 15

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 · 2026-01-14
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
Closed
Violation Dismissed · 2026-03-09
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.
Closed
Violation Dismissed · 2025-01-08
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
Closed
Violation Dismissed · 2024-04-22
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.
Closed
Violation Dismissed · 2024-04-22
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.
Closed
Violation Dismissed · 2023-07-05
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 · 2024-04-22
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.
Closed
Violation Dismissed · 2024-04-22
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 · 2020-12-15
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 · 2018-11-28
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 Dismissed · 2018-02-06
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 Closed · 2015-10-05
B2015-04-24SECTION 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 A MINIMUM OF 100 WATTS OF INCANDESCENT LIGHT REQUIRED. (LIGHT FIXTURE
Closed
Violation Dismissed · 2015-07-15
I2015-02-18SECTION27-2107 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 Closed · 2015-10-05
B2014-12-02SECTION 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 A MINIMUM OF 100 WATTS OF INCANDESCENT LIGHT REQUIRED. (LIGHT FIXTURE
Closed
Violation Closed · 2015-10-05
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 2026-11-02; data as of 2026-11-02

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 2026-11-02; data as of 2026-11-02

311 requests (last 12 months) 9

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
2026-08-14NYPDNoise - Residential – Loud TalkingClosed2026-08-14
2026-08-08NYPDNoise - Street/Sidewalk – Loud Music/PartyClosed2026-08-08
2025-11-08NYPDNoise - Residential – Banging/PoundingClosed2025-11-08
2025-11-08NYPDNoise - Residential – Banging/PoundingClosed2025-11-08
2025-11-02NYPDNoise - Residential – Loud Music/PartyClosed2025-11-02
2025-11-02NYPDNoise - Street/Sidewalk – Loud Music/PartyClosed2025-11-02
2025-11-02NYPDNoise - Residential – Banging/PoundingClosed2025-11-02
2025-11-02NYPDNoise - Street/Sidewalk – Loud Music/PartyClosed2025-11-02
2025-11-02NYPDNoise - Residential – Loud Music/PartyClosed2025-11-02

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 (1148)

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