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9018 4th Avenue, Bay Ridge, Brooklyn, NY 11209

BBL 3060810071 (Borough 3, Block 6081, Lot 71) · BIN 3154573 · Last updated: · Bay Ridge · ZIP 11209

Summary · as of November 10, 2026

9018 4th Avenue (Brooklyn, NY 11209; tax lot BBL 3060810071) is a 5-unit mixed-use building with apartments and ground-floor commercial space (building class S5: mixed-use: five- or six-family home with one store or office), built around 1924, on a 1,875 sq ft lot zoned R6A. City tax records list the owner as BLETSAS MARIA. The Department of Finance's final market value for tax year 2027 is $917,000. As of November 10, 2026, NYC Open Data shows one DOB job with a permit issued but no sign-off. (Source: NYC Open Data — DOB, HPD, OATH, DOF, DCP and ACRIS datasets — compiled by NYC Property Facts.)

Owner of record
BLETSAS MARIA
Building class
S5 · Mixed-use: five- or six-family home with one store or office
Year built · units
1924 · 5 res.
Lot area · zoning
1,875 sq ft · R6A
Market value (DOF)
$917,000 FY2027
Last priced deed
—
BBL
3060810071
BIN
3154573

How to cite: NYC Property Facts, “9018 4th Avenue, Brooklyn, NY 11209 (BBL 3060810071)”, data as of 2026-11-10, https://nycpropertyfacts.com/ny/brooklyn/9018-4th-avenue-3060810071. 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)
BLETSAS MARIAThe owner name on the city’s tax records. It can lag behind recent sales and is often an LLC.
Building class
S5 – Mixed-use: five- or six-family home with one store or officeThe Department of Finance’s category for what kind of building this is.
Land use
Mixed residential & commercialCity Planning’s broad category of how the lot is used.
Year built
1924Often an estimate for older buildings.
Floors
3
Units
5 residential / 6 totalResidential units are apartments; total includes stores and offices.
Buildings on lot
1
Lot size
1,875 sq ft (20 ft × 93.75 ft)
Building floor area
4,920 sq ft (incl. 1,640 sq ft commercial)
Zoning
R6A, C2-3, BRThe zoning district sets what can be built and used here. Residential district; the overlay (C1/C2…) allows local retail on residential blocks.
Built vs. allowed density (FAR)
2.62 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 3060810071 (Borough 3, Block 6081, Lot 71) · BIN 3154573BBL 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; last loaded 2026-11-10; Building Footprints — city dataset updated 2026-11-08; last loaded 2026-11-08; checked unchanged 2026-11-10

Tax assessment

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

Market value (tax year 2027, final roll)
$917,000The 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
$412,650The portion of market value that taxes are calculated on (capped by law for small homes).
Taxable value (final)
$205,378Assessed value minus any exemptions.
Tax class
Tax class 2A – residential rental, 4–6 units
Tax yearRollMarket valueAssessed valueTax class
2027Final$917,000$412,6502A
2026Final$764,000$343,8002A
2025Final$637,000$286,6502A

Source: DOF Property Valuation and Assessment Data — city dataset updated 2026-09-14; last loaded 2026-11-10

Sales & deed history 3

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
1994-01-19DEED$0 / not statedKostalos, Xenofon; Kostalos, IreneBletsas, MariaFT_3490004126149
1977-07-05DEED$0 / not statedVlahos James; Vlahos KateKostalos Irene; Bletsas Maria; Bletsas George; Kostalos XenofonBK_7730092901228
1974-08-23DEED$0 / not statedRossi Steve A; Rossi StellaVlahos Kate; Vlahos JamesBK_7430073100614

Source: ACRIS Real Property Master — city dataset updated 2026-10-08; last loaded 2026-11-10; ACRIS Real Property Legals — city dataset updated 2026-10-08; last loaded 2026-11-10; ACRIS Real Property Parties — city dataset updated 2026-10-08; last loaded 2026-11-10

DOB job filings 1 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
Permitted, not signed off
PERMIT ISSUED - PARTIAL JOB · 2004-08-25
301825540
BIS
A2 – Alteration with multiple work types (no change to use/occupancy)2004-08-18$3,000

Source: DOB NOW: Build – Job Application Filings — city dataset updated 2026-11-09; last loaded 2026-11-10; DOB Job Application Filings (BIS) — city dataset updated 2026-11-09; last loaded 2026-11-10

Work permits 1

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
2004-08-252005-07-15301825540
BIS
Equipment work / Fire suppressionISSUED (initial)

Source: DOB NOW: Build – Approved Permits — city dataset updated 2026-11-09; last loaded 2026-11-10; DOB Permit Issuance (BIS) — city dataset updated 2026-11-07; last loaded 2026-11-07

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). The active-DOB count in the summary also includes DOB NOW safety violations, listed in the next section.

No records found in this dataset for this lot.

Source: DOB Violations — city dataset updated 2026-11-09; last loaded 2026-11-10

DOB safety violations (DOB NOW) 0 active of 0

Safety violations DOB NOW publishes for devices such as boilers, elevators and gas piping (Local Law 152). Active means the published status is Active. Dismissed, cured, waived and successfully disputed violations are counted under “resolved or not active” and are not open items. Active ones are included in the summary’s active DOB violation total.

No records found in this dataset for this lot.

Source: DOB Safety Violations (DOB NOW) — city dataset updated 2026-11-09; last loaded 2026-11-10

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 2026-11-07; last loaded 2026-11-10

OATH tickets (all agencies) 0 unpaid of 9

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 #
No balance due
PAID IN FULL
2025-12-04Sanitation OthersFAILURE TO CLEAN 18 INCHES INTO STREETBLETSAS MARIA$50 / $50 / $0049230590Z
No balance due
PAID IN FULL
2025-02-14Sanitation OthersDIRTY SIDEWALKBLETSAS MARIA$50 / $50 / $0048777447Z
No balance due
PAID IN FULL
2024-10-01Dos - Enforcement AgentsSTORAGE OF RECEPTACLES PLACED OUT PRIOR TO 8PM WITHOUT A RECEPTACLEBLETSAS MARIA$50 / $50 / $0048582298Y
No balance due
HEARING COMPLETED · DISMISSED
2018-11-27Dos - Enforcement AgentsPOSTING OF SIGN PERMIT, WASTE REMOVALA T TAX SERVICE INC$0 / $0 / $0042106920J
No balance due
HEARING COMPLETED · IN VIOLATION
2016-04-09Sanitation DeptPOSTING OF SIGN PERMIT, WASTE REMOVALQ TEN GIFT SHOP INC— / — / —041689238H
No balance due
WRITTEN OFF · WRITTEN OFF
2014-09-16Dos - Enforcement AgentsPOSTING OF SIGN PERMIT, WASTE REMOVALPIPE 'N' DANCE - RENT A KILT C$100 / $0 / $0042144852Y
No balance due
PAID IN FULL
2009-07-09Sanitation PoliceRECYCLING NOTICES NOT POSTED IN MAINTENANCE AREACOSMOS DELI GROCERY$25 / $25 / —040552898J
No balance due
PAID IN FULL
2009-07-09Sanitation PoliceFAILURE TO SOURCE SEPARATE FOOD BEVERAGE RECYCLABLESCOSMOS DELI GROCERY$25 / $25 / —040552897H
No balance due
HEARING COMPLETED · IN VIOLATION
2001-04-12— / — / —010745503Z

Source: OATH Hearings Division Case Status — city dataset updated 2026-11-10; last loaded 2026-11-10

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
129733
Last registered
2026-09-28
Registration valid until
2027-09-01 CurrentRegistrations must be renewed every year.
RoleNameCompanyBusiness city
SitemanagerMaria Bletsas
JointownerMaria BletsasBrooklyn, Ny
AgentMaria BletsasBrooklyn, Ny
JointownerGeorge BletsasBrooklyn, Ny

Source: HPD Multiple Dwelling Registrations — city dataset updated 2026-11-04; last loaded 2026-11-10; HPD Registration Contacts — city dataset updated 2026-11-04; last loaded 2026-11-10

HPD housing-code violations 0 open of 6

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 · 2024-01-29
I2023-11-17§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 · 2022-03-16
A2022-02-18(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 · 2022-03-14
I2022-02-18§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 · 2021-06-17
A2021-04-05(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 · 2015-10-28
I2015-10-06SECTION27-2107 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 · 2015-10-28
I2015-02-05SECTION27-2107 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

Source: HPD Housing Maintenance Code Violations — city dataset updated 2026-11-10; last loaded 2026-11-10

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 2026-11-10; last loaded 2026-11-10

311 requests (last 12 months) 0

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.

No records found in this dataset for this lot.

Source: 311 Service Requests from 2020 to Present — city dataset updated 2026-11-10; last loaded 2026-11-10

Nearby properties

Ordered by map distance among lots on this street within 40 house numbers and on this tax block within 15 lot numbers.

More in Bay Ridge: Open HPD violations · Active DOB violations · Active ECB violations · Open DOB jobs · Unpaid OATH tickets

Closest on 4 Ave

Same tax block (6081), closest first

All properties on 4 Ave, Brooklyn · Brooklyn 11209

Open-item counts as of November 10, 2026; each section lists its own dataset date. Machine-readable: JSON API · Markdown · Plain text · API & MCP docs