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9 4th Place, Brooklyn, NY 11231

BBL 3003700052 (Borough 3, Block 370, Lot 52) · BIN 3005377 · Last updated:

Summary · as of October 31, 2026

9 4th Place (Brooklyn, NY 11231; tax lot BBL 3003700052) is an 8-unit walk-up apartment building (building class C1: walk-up apartments, more than six families, no stores), built around 1920, on a 2,500 sq ft lot zoned R6B. City tax records list the owner as 9 4TH PLACE, LLC. The Department of Finance's final market value for tax year 2027 is $3,108,000. As of October 31, 2026, NYC Open Data shows four active DOB violations and four open HPD violations. There were three 311 requests in the past 12 months and 13 HPD complaints since 2019. (Source: NYC Open Data — DOB, HPD, OATH, DOF, DCP and ACRIS datasets — compiled by NYC Property Facts.)

Owner of record
9 4TH PLACE, LLC
Building class
C1 · Walk-up apartments, more than six families, no stores
Year built · units
1920 · 8 res.
Lot area · zoning
2,500 sq ft · R6B
Market value (DOF)
$3,108,000 FY2027
Last priced deed
—
BBL
3003700052
BIN
3005377

How to cite: NYC Property Facts, “9 4th Place, Brooklyn, NY 11231 (BBL 3003700052)”, data as of 2026-10-31, https://nycpropertyfacts.com/ny/brooklyn/9-4th-place-3003700052. 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)
9 4TH PLACE, LLCThe 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
1920Often an estimate for older buildings. Major alteration recorded: 1985.
Floors
4
Units
8 residential / 8 totalResidential units are apartments; total includes stores and offices.
Buildings on lot
1
Lot size
2,500 sq ft (25 ft × 100 ft)
Building floor area
5,300 sq ft
Zoning
R6BThe zoning district sets what can be built and used here. Residential district.
Built vs. allowed density (FAR)
2.12 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 3003700052 (Borough 3, Block 370, Lot 52) · BIN 3005377BBL 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 2026-11-01; 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)
$3,108,000The 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
$1,398,600The portion of market value that taxes are calculated on (capped by law for small homes).
Taxable value (final)
$137,855Assessed value minus any exemptions.
Tax class
Tax class 2B – residential rental, 7–10 units
Tax yearRollMarket valueAssessed valueTax class
2027Final$3,108,000$1,398,6002B
2026Final$2,590,000$1,165,5002B
2025Final$2,748,000$1,236,6002B

Source: DOF Property Valuation and Assessment Data — city dataset updated 2026-09-14; data as of 2026-11-01

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
2015-11-18DEED$0 / not statedO'Connell, Michael; O'Connell, Gregory9 4th Place, Llc2015121500177001
1991-05-30DEED$0 / not statedMarfilius, Loris L; Nedds, Ivan L; Liao, MingO'Connell, Gregory; O'Connell, MichaelFT_3770001622077
1982-02-16DEED$0 / not statedBasile, Emilia Aka; Acquilla, Amelia; Aquila, Amelia AkaMarfillius, Loris L.; Nedds, Ivan L.FT_3400000900840

Source: ACRIS Real Property Master — city dataset updated 2026-10-08; data as of 2026-11-01; ACRIS Real Property Legals — city dataset updated 2026-10-08; data as of 2026-11-01; ACRIS Real Property Parties — city dataset updated 2026-10-08; data as of 2026-11-01

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 2026-10-31; data as of 2026-11-01; 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 2026-10-31; data as of 2026-11-01; DOB Permit Issuance (BIS) — city dataset updated 2026-10-31; data as of 2026-10-31

DOB violations 4 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
Active
V-DOB VIOLATION - ACTIVE
2023-06-30LBLVIO-LOW PRESSURE BOILER BOILER REQUIREDVIOLATION ISSUED-FAILURE TO FILE 2021 EXTERNAL LOW PRESSURE INSPECTIONV063023LBLVIO43049
Active
V-DOB VIOLATION - ACTIVE
2023-06-30LBLVIO-LOW PRESSURE BOILER BOILER REQUIREDVIOLATION ISSUED-FAILURE TO FILE 2020 EXTERNAL LOW PRESSURE INSPECTIONV063023LBLVIO22176
Active
V-DOB VIOLATION - ACTIVE
2023-06-20LBLVIO-LOW PRESSURE BOILER BOILER REQUIREDVIOLATION ISSUED-FAILURE TO FILE 2019 EXTERNAL LOW PRESSURE INSPECTIONV062023LBLVIO43765
Active
V-DOB VIOLATION - ACTIVE
2015-03-03LBLVIO-LOW PRESSURE BOILER BOILER REQUIREDVIOLATION ISSUED FOR FAILURE TO FILE ANNUAL BOILER 2013 INSPECTION REPORTV030315LBLVIO06485

Source: DOB Violations — city dataset updated 2026-10-31; data as of 2026-11-01

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: CURED/IN-VIO · Certification: CURE ACCEPTED
2021-08-17CLASS - 2FOUND WEIL MCLAIN MODEL # EG-55 SERIAL# CP7499920 BOILER UNREGISTERED.MISSING DISCHARGE PIPING ON HOT WATER HEATER. CORRECT ALL VIOLATING CONDITIONS AND SUBMIT A CERTIFICATE OF CORRECTION.$0 / $0 / $039046117K

Source: DOB ECB Violations — city dataset updated 2026-10-31; data as of 2026-11-01

OATH tickets (all agencies) 0 unpaid of 2

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
HEARING COMPLETED · IN VIOLATION
2021-08-17Dept. Of BuildingsFAIL MAINTAIN BLDG IN COMPLIANT MANNER: SERVICE EQUIPMENT - BOILER9 4TH PLACE LLC$0 / $0 / $0039046117K
No balance due
PAID IN FULL
2010-09-28Dos - Enforcement AgentsNON-RECYCLABLES LEFT IN RECYCLING CONTAINER FOR COLLECTIONMICHAEL$25 / $25 / —041662870L

Source: OATH Hearings Division Case Status — city dataset updated 2026-11-01; data as of 2026-11-01

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
129934
Last registered
2025-11-05
Registration valid until
2026-09-01 ExpiredRegistrations must be renewed every year.
RoleNameCompanyBusiness city
JointownerGregory O'ConnellBrooklyn, Ny
JointownerGregory O'ConnellBklyn, Ny
SitemanagerGregory O'Connell
AgentGregory O'ConnellO'C CONSTRUCTION GROUP INCBrooklyn, Ny

Source: HPD Multiple Dwelling Registrations — city dataset updated 2026-10-28; data as of 2026-11-01; HPD Registration Contacts — city dataset updated 2026-10-28; data as of 2026-11-01

HPD housing-code violations 4 open of 21

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 · 2025-05-12
B2025-05-12§ 27-2005 ADM CODE & 309 M/D LAW ABATE THE NUISANCE CONSISTING OF PLEXI GLASS AT VESTIBULE DOOR
Open
Nov Sent Out · 2023-08-01
B2023-08-01§ 27-2021 ADM CODE PROVIDE SUFFICIENT, PROPER AND SEPARATE METAL RECEPTACLES FOR THE DEPOSIT OF GARBAGE, RUBBISH AND OTHER WASTE MATERIAL AND ARRANGE FOR COLLECTION AND DISPOSAL OF SUCH MATERIAL.
Open
Nov Sent Out · 2021-03-22
B2021-03-22§ 27-2005 ADM CODE PROPERLY REPAIR THE BROKEN OR DEFECTIVE DOORS AT APARTMENTS 1L AND 3L MAILBOXES AT EAST WALL IN VESTIBULE AT PUBLIC HALL, 1st STORY
Open
Nov Sent Out · 2020-05-04
C2020-05-04§ 27-2033 ADM CODE POST NOTICE, IN FORM APPROVED BY THE DEPARTMENT, STATING THE NAME AND LOCATION OF THE PERSON DESIGNATED BY THE OWNER TO HAVE KEY TO BUILDINGS HEATING SYSTEM MISSING AT PUBLIC HALL, 1st STORY
Closed
Violation Dismissed · 2026-06-11
A2026-03-24§27-2104(B) HMC POST A PROPER NOTICE REGARDING RENT STABILIZATION LAW, IN A FORM APPROVED BY THE COMMISSIONER, IN A CONSPICUOUS LOCATION WITHIN THE COMMON AREA AT THE BUILDINGS ENTRANCE. FOR MORE INFORMATION ABOUT SIGNAGE REQUIREMENTS, PLEASE VISIT: HTTPS://W
Closed
Violation Dismissed · 2025-06-09
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 · 2025-06-27
C2025-04-04§ 27-2005, 27-2007, 27-2041.1 HMC, §238, § 309; § 107 (2) ( C) MDL AND 28 RCNY §25-171: REPLACE OR REPAIR THE SELF-CLOSING DOORS THAT IS MISSING OR DEFECTIVE HINGES ON BUILDING VESTIBULE DOOR
Closed
Violation Closed · 2025-07-09
C2025-04-04§ 27-2005, 27-2007, 27-2041.1 HMC, §238, § 309; § 107 (2) ( C) MDL AND 28 RCNY §25-171: REPLACE OR REPAIR THE SELF-CLOSING DOORS THAT IS MISSING OR DEFECTIVE LATCH SET ON BUILDING ENTRANCE DOOR
Closed
Violation Dismissed · 2022-03-02
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 · 2021-11-15
C2021-08-23§ 27-2005 ADM CODE PROPERLY REPAIR THE BROKEN OR DEFECTIVE HEAVEY DUTY LOCK AT BUILDING ENTRANCE DOOR AT PUBLIC HALL, 1st STORY
Closed
Violation Dismissed · 2021-07-14
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 · 2019-12-23
B2019-10-041R§ 27-2045 ADM CODE REPAIR OR REPLACE THE SMOKE DETECTOR ( MISSING ) IN THE ENTIRE APARTMENT LOCATED AT APT 1R, 1st STORY, 2nd APARTMENT FROM WEST AT NORTH
Closed
Violation Dismissed · 2019-12-23
C2019-10-041R§ 27-2005, 2007 HMC: REMOVE THE ILLEGAL DOUBLE CYLINDER KEY OPERATED LOCKING DEVICE AT DOOR ,,, IN THE ENTRANCE LOCATED AT APT 1R, 1st STORY, 2nd APARTMENT FROM WEST AT NORTH
Closed
Violation Dismissed · 2019-12-23
A2019-10-04§ 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
Closed
Violation Dismissed · 2019-12-23
A2019-10-04§ 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
Closed
Violation Dismissed · 2019-12-23
B2019-10-041R§ 27-2046.1 HMC: REPAIR OR REPLACE THE CARBON MONOXIDE DETECTING DEVICE(S). ( MISSING ) IN THE ENTIRE APARTMENT LOCATED AT APT 1R, 1st STORY, 2nd APARTMENT FROM WEST AT NORTH
Closed
Violation Closed · 2019-10-25
C2019-10-031R§ 27-2031 ADM CODE PROVIDE HOT WATER AT ALL HOT WATER FIXTURES IN THE ENTIRE APARTMENT LOCATED AT APT 1R, 1st STORY, 2nd APARTMENT FROM WEST AT NORTH
Closed
Violation Dismissed · 2018-11-19
I2018-10-12§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 · 2018-11-19
I2017-11-15§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 · 2015-10-19
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

Showing 20 of 21 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 2026-10-31; data as of 2026-11-01

HPD complaints 13

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
2026-03-17CLOSEBLDGHeat/Hot Water – Entire BuildingHPD responded to a complaint of no heat or hot water in the building. An occupant of the building confirmed heat and hot water had been restored when the Inspector attempted to conduct the inspection
2025-04-24CLOSE1LDoor/Window – Door FrameHPD inspected this condition so the complaint has been closed. Violations were issued. The law provides the property owner time to correct the condition(s). Violation descriptions and the dates for t
2025-03-08CLOSE1LDoor/Window – Door
Door/Window – Door Frame
HPD inspected this condition so the complaint has been closed. Violations were issued. The law provides the property owner time to correct the condition(s). Violation descriptions and the dates for t
2024-11-27CLOSE1LDoor/Window – Door FrameHPD inspected this condition so the complaint has been closed. Violations were issued. The law provides the property owner time to correct the condition(s). Violation descriptions and the dates for t
2024-08-13CLOSE1LDoor/Window – DoorThe Department of Housing Preservation and Development inspected the following conditions. No violations were issued. The complaint has been closed.
2024-08-12CLOSE1LDoor/Window – DoorThe Department of Housing Preservation and Development inspected the following conditions. No violations were issued. The complaint has been closed.
2023-04-17CLOSEBLDGUnsanitary Condition – Garbage/Recycling StorageThe Department of Housing Preservation and Development inspected the following conditions. Violations were issued. Information about specific violations is available at www.nyc.gov/hpd
2021-08-30CLOSEBLDGDoor/Window – DoorThe Department of Housing Preservation and Development inspected the following conditions. No violations were issued. The complaint has been closed.
2021-08-17CLOSE4LDoor/Window – Door
Door/Window – Door Frame
The Department of Housing Preservation and Development inspected the following conditions. Violations were issued. Information about specific violations is available at www.nyc.gov/hpd
2020-11-21CLOSE1LDoor/Window – DoorThe Department of Housing Preservation and Development inspected the following conditions. No violations were issued. The complaint has been closed.

Showing 10 of 13 records. The API and the source dataset have the full list.

Source: HPD Housing Maintenance Code Complaints and Problems — city dataset updated 2026-11-01; data as of 2026-11-01

311 requests (last 12 months) 3

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
2026-10-21DOBGeneral Construction/Plumbing – Debris - ExcessiveOpen2026-10-21
2026-10-02DEPAir Quality – Vehicle Idling OdorClosed2026-10-05
2026-03-17HPDHEAT/HOT WATER – ENTIRE BUILDINGClosed2026-03-20

Source: 311 Service Requests from 2020 to Present — city dataset updated 2026-11-01; data as of 2026-11-01

Nearby properties

On 4 Pl

Same tax block (370)

All properties on 4 Pl, Brooklyn · All of Brooklyn 11231 (Carroll Gardens-Cobble Hill-Gowanus-Red Hook)

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