Independent site. Data from NYC Open Data; not affiliated with the City of New York.

NYC Property Factsfree public-records reference

9309 3rd Avenue, Bay Ridge, Brooklyn, NY 11209

BBL 3061070009 (Borough 3, Block 6107, Lot 9) · BIN 3155241 · Last updated: · Bay Ridge · ZIP 11209

Summary · as of November 10, 2026

9309 3rd Avenue (Brooklyn, NY 11209; tax lot BBL 3061070009) is a 4-unit mixed-use building with apartments and ground-floor commercial space (building class S4: mixed-use: four-family home with one store or office), built around 1926, on a 2,043 sq ft lot zoned R6A. City tax records list the owner as GUZZONE NICHOLAS. The Department of Finance's final market value for tax year 2027 is $826,000. As of November 10, 2026 (limited by DOB Job Application Filings (BIS); other open-item sources were confirmed later), NYC Open Data shows two DOB jobs with a permit issued but no sign-off and two active DOB violations (one BIS violation and one DOB NOW safety violation). There were two 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
GUZZONE NICHOLAS
Building class
S4 · Mixed-use: four-family home with one store or office
Year built · units
1926 · 4 res.
Lot area · zoning
2,043 sq ft · R6A
Market value (DOF)
$826,000 FY2027
Last priced deed
—
BBL
3061070009
BIN
3155241

How to cite: NYC Property Facts, “9309 3rd Avenue, Brooklyn, NY 11209 (BBL 3061070009)”, data as of 2026-11-10, https://nycpropertyfacts.com/ny/brooklyn/9309-3rd-avenue-3061070009. 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)
GUZZONE NICHOLASThe owner name on the city’s tax records. It can lag behind recent sales and is often an LLC.
Building class
S4 – Mixed-use: four-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
1926Often an estimate for older buildings.
Floors
3
Units
4 residential / 5 totalResidential units are apartments; total includes stores and offices.
Buildings on lot
1
Lot size
2,043 sq ft (20 ft × 102.17 ft)
Building floor area
5,040 sq ft (incl. 1,680 sq ft commercial)
Zoning
R6A, C1-3, 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)
2.47 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 3061070009 (Borough 3, Block 6107, Lot 9) · BIN 3155241BBL 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 2026-11-12; 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)
$826,000The 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
$371,700The portion of market value that taxes are calculated on (capped by law for small homes).
Taxable value (final)
$184,711Assessed value minus any exemptions.
Tax class
Tax class 2A – residential rental, 4–6 units
Tax yearRollMarket valueAssessed valueTax class
2027Final$826,000$371,7002A
2026Final$688,000$309,6002A
2025Final$573,600$258,1202A

Source: DOF Property Valuation and Assessment Data — city dataset updated 2026-09-14; last loaded 2026-11-12

Sales & deed history 6

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
2005-03-30CORRD$0 / not statedGuzzone, NicholasNicholas Guzzone, As Trustee2005040500327001
1995-10-31DEED$0 / not statedGuzzone, NicholasGuzzone, NicholasFT_3830005015583
1988-12-16DEED$0 / not statedMahfouz, William C; Mahfouz, Marilyn JGuzzone, NicholasFT_3890001420889
1983-07-26DEED$0 / not statedBerne, Sam RMahfouz, Marilyn J; Mahfouz, William CFT_3410000973541
1978-08-04DEED$0 / not statedBerne Abraham IBerne Sam RBK_7830101100073
1974-03-08DEED$0 / not statedAlmest Rlty IncBerne Abraham I; Berne Sam R; Almest Realty CoBK_7430069501644

Source: ACRIS Real Property Master — city dataset updated 2026-11-10; last loaded 2026-11-12; ACRIS Real Property Legals — city dataset updated 2026-11-10; last loaded 2026-11-12; ACRIS Real Property Parties — city dataset updated 2026-11-10; last loaded 2026-11-12

DOB job filings 2 open of 4

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 Entire · 2021-09-09
B00590142-I1
DOB NOW
Alteration2021-09-08$5,000
Permitted, not signed off
PERMIT ISSUED - PARTIAL JOB · 1991-04-22
300085501
BIS
A2 – Alteration with multiple work types (no change to use/occupancy)1991-03-20$3,000
Not open
LOC Issued · 2022-04-27
B00611488-I1
DOB NOW
Alteration2021-11-18$2,000
Not open
LOC Issued · 2022-04-27
B00611516-I1
DOB NOW
Alteration2021-11-18$18,000

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

Work permits 11

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
2022-02-142022-12-05B00611488-I1
DOB NOW
Plumbing
TEST/REPAIR/REPLACE GAS PIPING FROM EXISTING METER. AND CONNECT BOILER AND NEW WATER HEATER.
Signed-off
2022-02-142022-12-05B00611488-I1
DOB NOW
Plumbing
TEST/REPAIR/REPLACE GAS PIPING FROM EXISTING METER. AND CONNECT BOILER AND NEW WATER HEATER.
Signed-off
2022-02-142022-12-05B00611516-I1
DOB NOW
Boiler Equipment
REGISTER NEW GAS BOILER.
Signed-off
2022-02-142022-12-05B00611516-I1
DOB NOW
Boiler Equipment
REGISTER NEW GAS BOILER.
Signed-off
2021-12-032022-01-15B00611488-I1
DOB NOW
Plumbing
TEST/REPAIR/REPLACE GAS PIPING FROM EXISTING METER. AND CONNECT BOILER AND NEW WATER HEATER.
Signed-off
2021-12-032022-01-15B00611516-I1
DOB NOW
Boiler Equipment
REGISTER NEW GAS BOILER.
Signed-off
2021-12-032022-01-15B00611516-I1
DOB NOW
Boiler Equipment
REGISTER NEW GAS BOILER.
Signed-off
2021-12-032022-01-15B00611488-I1
DOB NOW
Plumbing
TEST/REPAIR/REPLACE GAS PIPING FROM EXISTING METER. AND CONNECT BOILER AND NEW WATER HEATER.
Signed-off
2021-09-092022-09-09B00590142-I1
DOB NOW
Sidewalk Shed
PROPOSED INSTALLATION OF HEAVY DUTY SIDEWALK SHED FILED FOR REMEDIAL REPAIRS AS PER PLANS. NO CHANGE IN USE OCCUPANCY OR EGRESS UNDER THIS APPLICATION. LIVE LOA
Permit Issued
2021-09-092022-09-09B00590142-I1
DOB NOW
Sidewalk Shed
PROPOSED INSTALLATION OF HEAVY DUTY SIDEWALK SHED FILED FOR REMEDIAL REPAIRS AS PER PLANS. NO CHANGE IN USE OCCUPANCY OR EGRESS UNDER THIS APPLICATION. LIVE LOA
Permit Issued
1991-04-221991-06-28300085501
BIS
Equipment work / BoilerISSUED (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 1 active of 7

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.

StatusIssuedTypeDescriptionNumber
Active
V-DOB VIOLATION - ACTIVE
2025-11-14LBLVIO-LOW PRESSURE BOILER BOILER REQUIREDVIOLATION ISSUED-FAILURE TO FILE 2024 EXTERNAL LOW PRESSURE INSPECTIONV111425LBLVIO13529
Resolved/dismissed
V*-DOB VIOLATION - DISMISSED
2024-09-23LBLVIO-LOW PRESSURE BOILER BOILER REQUIREDVIOLATION ISSUED-FAILURE TO FILE 2023 EXTERNAL LOW PRESSURE INSPECTIONV*092324LBLVIO12358
Resolved/dismissed
V*-DOB VIOLATION - DISMISSED
2023-04-25LBLVIO-LOW PRESSURE BOILER BOILER REQUIREDVIOLATION ISSUED-FAILURE TO FILE 2022 EXTERNAL LOW PRESSURE INSPECTIONV*042523LBLVIO14199
Resolved/dismissed
V*-DOB VIOLATION - DISMISSED
2007-01-19LL6291-LOCAL LAW 62/91 - BOILERS BOILER REQUIREDV*011907LL629115553
Resolved/dismissed
V*-DOB VIOLATION - DISMISSED
2002-03-26LL6291-LOCAL LAW 62/91 - BOILERS BOILER REQUIREDV*032602LL629124186
Resolved/dismissed
V*-DOB VIOLATION - DISMISSED
2001-02-27LL6291-LOCAL LAW 62/91 - BOILERS BOILER REQUIREDV*022701LL629122963
Resolved/dismissed
VP*-VIOLATION UNSERVED ECB- DISMISSED
1997-10-27B-BOILER BOILER OPTIONALVP*102797B93531-01

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

DOB safety violations (DOB NOW) 1 active of 3

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.

StatusIssuedTypeDeviceNumberRemarks
Active
Active
2025-11-14LBLVIOBoiler111425LBLVIO13529VIOLATION ISSUED-FAILURE TO FILE 2024 EXTERNAL LOW PRESSURE INSPECTION
2 resolved or not active
StatusIssuedTypeDeviceNumberRemarks
Not active
Dismissed
2024-09-23LBLVIOBoiler092324LBLVIO12358Violation Issued-Failure To File 2023 External Low Pressure Inspection Report
Not active
Dismissed
2023-04-25LBLVIOBoiler042523LBLVIO14199VIOLATION ISSUED FOR FAILURE TO FILE ANNUAL BOILER 2022 INSPECTION REPORT

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

ECB violations (DOB) 0 active of 1

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: IN VIOLATION · Certification: CERTIFICATE ACCEPTED
1991-11-07Unknown32,49 ELECTRICAL SHORT. WONT SHUT OFF BOILER.$170 / $170 / $032008961Y

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

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
2026-06-02Sanitation OthersIMPROPER RECEPTACLE FAILURE TO CONTAINERIZE - RESIDENTIAL 1STGUZZONE NICHOLAS$50 / $50 / $0049672795K
No balance due Default
PAID IN FULL · DEFAULTED
2025-09-05Sanitation OthersIMPROPER RECEPTACLE FAILURE TO CONTAINERIZE - RESIDENTIAL 1STGUZZONE NICHOLAS$80 / $80 / $0049230471X
No balance due Default
PAID IN FULL · DEFAULTED
2022-10-27Sanitation OthersSTORAGE OF RECEPTACLES 1ST OCCURRENCEGUZZONE NICHOLAS$80 / $80 / $0047470765L
No balance due
PAID IN FULL
2021-01-27Sanitation OthersDIRTY SIDEWALK DIRTY AREAGUZZONE NICHOLAS$100 / $100 / $0047071653Z
No balance due Default
PAID IN FULL · DEFAULTED
2017-07-14Dos - Enforcement AgentsLOOSE RUBBISHGUZZONE NICHOLAS$130 / $130 / $0043955975J
No balance due Default
PAID IN FULL · DEFAULT
2016-11-11FAILURE TO BUNDLE NEWSPAPES MAGAZINES CARDBOARD 1 TO 8 DWELLING UNITSGUZZONE$25 / $25 / —0192761169
No balance due
PAID IN FULL
2016-06-10Sanitation DeptFAILURE TO PROPERLY PUT RECYCS OUT FOR COLLECTION 1TO8DWELLING UNITSGUZZONE NICHOLAS$25 / $25 / —042027379P
No balance due
PAID IN FULL · IN VIOLATION
2012-10-01Sanitation DeptPOSTING OF SIGN PERMIT, WASTE REMOVALALLSTATE$100 / $115 / —041564453L
No balance due
PAID IN FULL · IN VIOLATION
1991-11-07Dept. Of BuildingsFAILURE TO MAINTAIN BOILER - HAZARDOUS CNICK GUZZONE$170 / $170 / $0032008961Y

Source: OATH Hearings Division Case Status — city dataset updated 2026-11-11; last loaded 2026-11-12

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
128354
Last registered
2025-08-27
Registration valid until
2026-09-01 ExpiredRegistrations must be renewed every year.
RoleNameCompanyBusiness city
IndividualownerNicholas GuzzoneBrooklyn, Ny
SitemanagerDavid Guzzone
AgentNicholas GuzzoneBrooklyn, 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 8

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
A2025-06-05(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 · 2024-07-18
A2024-04-03(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 · 2024-07-03
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 · 2024-07-18
A2023-03-17(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 · 2024-07-18
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 · 2024-07-18
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 · 2021-09-23
I2021-04-05§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 · 2015-10-28
I2015-10-06§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

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

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

311 requests (last 12 months) 2

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
2026-06-15DOTCurb Condition – Broken CurbClosed2026-06-29
2025-11-17DSNYDirty Condition – TrashClosed2025-11-18

Source: 311 Service Requests from 2020 to Present — city dataset updated 2026-11-11; last loaded 2026-11-12

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 3 Ave

Same tax block (6107), closest first

All properties on 3 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