9510 4th Avenue, Bay Ridge, Brooklyn, NY 11209
BBL 3061170134 (Borough 3, Block 6117, Lot 134) · BIN 3155635 · Last updated: · Bay Ridge · ZIP 11209
Summary · as of November 10, 2026
9510 4th Avenue (Brooklyn, NY 11209; tax lot BBL 3061170134) is a 2-unit mixed-use building with apartments and ground-floor commercial space (building class S2: mixed-use: two-family home with one store or office), built around 1929, on a 1,651 sq ft lot zoned R6A. City tax records list the owner as DAWN RINALDI, AS TRUSTEE OF THE GEORGE L OPARNOS PR. The Department of Finance's final market value for tax year 2027 is $1,526,000. 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 one OATH ticket with an unpaid balance. 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
- DAWN RINALDI, AS TRUSTEE OF THE GEORGE L OPARNOS PR
- Building class
- S2 · Mixed-use: two-family home with one store or office
- Year built · units
- 1929 · 2 res.
- Lot area · zoning
- 1,651 sq ft · R6A
- Market value (DOF)
- $1,526,000 FY2027
- Last priced deed
- —
- BBL
- 3061170134
- BIN
- 3155635
- 2Open DOB jobs (permit issued, no sign-off)
- 0Active DOB violationsBIS 0 · DOB NOW safety 0
- 0Active ECB violations
- 0Open HPD violations
- 1OATH tickets with unpaid balance
How to cite: NYC Property Facts, “9510 4th Avenue, Brooklyn, NY 11209 (BBL 3061170134)”, data as of 2026-11-10, https://nycpropertyfacts.com/ny/brooklyn/9510-4th-avenue-3061170134. 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)
- DAWN RINALDI, AS TRUSTEE OF THE GEORGE L OPARNOS PRThe owner name on the city’s tax records. It can lag behind recent sales and is often an LLC.
- Building class
- S2 – Mixed-use: two-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
- 1929Often an estimate for older buildings.
- Floors
- 3
- Units
- 2 residential / 3 totalResidential units are apartments; total includes stores and offices.
- Buildings on lot
- 1
- Lot size
- 1,651 sq ft (17.33 ft × 95.25 ft)
- Building floor area
- 3,000 sq ft (incl. 990 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)
- 1.82 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 3061170134 (Borough 3, Block 6117, Lot 134) · BIN 3155635BBL identifies the tax lot; BIN identifies each building (from DOB/HPD/footprint records).
Agency lookups: DOB BIS · ZoLa (zoning map) · ACRIS
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)
- $1,526,000The 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
- $91,560The portion of market value that taxes are calculated on (capped by law for small homes).
- Taxable value (final)
- $58,045Assessed value minus any exemptions.
- Tax class
- Tax class 1 – 1–3 family homes (and some small mixed-use / vacant lots)
| Tax year | Roll | Market value | Assessed value | Tax class |
|---|---|---|---|---|
| 2027 | Final | $1,526,000 | $91,560 | 1 |
| 2026 | Final | $1,329,000 | $79,740 | 1 |
| 2025 | Final | $1,307,000 | $78,420 | 1 |
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.
| Date | Type | Price | Seller (grantor) | Buyer (grantee) | Doc ID |
|---|---|---|---|---|---|
| 2025-03-31 | DEED | $0 / not stated | Loparnos, George | Dawn Rinaldi, As Trustee Of The George Loparnos Pr | 2025040800193001 |
| 2022-03-30 | DEED, LE | $0 / not stated | Loparnos, George | George Loparnos Preservation Trust; Dawn Rinaldi, As Trustee | 2022040701235001 |
| 2011-04-14 | DEED | $0 / not stated | Loparnos, John; Loparnos, George | Loparnos, George | 2011042900104001 |
| 2000-01-28 | DEED | $0 / not stated | Michaelis, Dennis J | Loparnos, George; Loparnos, John | FT_3650007221265 |
| 1996-03-14 | DEED | $0 / not stated | Bifano, Nancy Louise; Wallrabe, Louise/Estof | Michaelis, Dennis J | FT_3190005120319 |
| 1981-02-19 | DEED | $0 / not stated | Frudden Max | Wallrabe Louise; Wallrabe Hans | BK_8130121900745 |
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 6
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.
| Status | Job # | Type | Filed | Est. cost |
|---|---|---|---|---|
| Permitted, not signed off PERMIT ISSUED - ENTIRE JOB/WORK · 2011-08-25 | 320349324 BIS | A2 – Alteration with multiple work types (no change to use/occupancy) | 2011-08-17 | $64,000 |
| Permitted, not signed off PERMIT ISSUED - PARTIAL JOB · 2002-02-12 | 301294748 BIS | A2 – Alteration with multiple work types (no change to use/occupancy) | 2002-02-07 | $2,000 |
| Not open LOC Issued · 2023-08-11 | B00830975-I1 DOB NOW | Alteration | 2023-03-28 | $3,000 |
| Not open LOC Issued · 2023-02-27 | B00738506-I1 DOB NOW | Alteration | 2022-05-28 | $16,000 |
| Not open LOC Issued · 2022-11-09 | B00722964-I1 DOB NOW | Alteration | 2022-04-21 | $8,000 |
| Not open LOC Issued · 2022-11-09 | B00722994-I1 DOB NOW | Alteration | 2022-04-21 | $8,000 |
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 10
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.
| Issued | Expires | Job # | Work | Permit status |
|---|---|---|---|---|
| 2023-04-06 | 2024-01-10 | B00830975-I1 DOB NOW | General Construction FILING TO INSTALL NON-ILLUMINATED FABRIC AWNING ON WALL FOR FIRST FLOOR STOREFRONT. NO CHANGE TO USE, EGRESS OR OCCUPANCY. | Signed-off |
| 2023-04-06 | 2024-01-10 | B00830975-I1 DOB NOW | General Construction FILING TO INSTALL NON-ILLUMINATED FABRIC AWNING ON WALL FOR FIRST FLOOR STOREFRONT. NO CHANGE TO USE, EGRESS OR OCCUPANCY. | Signed-off |
| 2022-06-08 | 2023-01-24 | B00738506-I1 DOB NOW | General Construction APPLICATION FILE TO EXTERIOR FACADE REPAIR AS BRICK REPLACMENT 2nd TO 3rd FLOOR AND REPLACE WINDOW LINTELS AS PER PLAN. NO CHANGE IN USE, EGRESS OR OCCUPANCY U | Signed-off |
| 2022-06-08 | 2023-01-24 | B00738506-I1 DOB NOW | General Construction APPLICATION FILE TO EXTERIOR FACADE REPAIR AS BRICK REPLACMENT 2nd TO 3rd FLOOR AND REPLACE WINDOW LINTELS AS PER PLAN. NO CHANGE IN USE, EGRESS OR OCCUPANCY U | Signed-off |
| 2022-04-27 | 2023-01-24 | B00722964-I1 DOB NOW | Sidewalk Shed PROPOSED INSTALLATION OF HEAVY DUTY SIDEWALK SHED AS PER PLANS. LIVE LOAD 300 PER SQUARE FEET. SIDEWALK SHED SHALL COMPLY WITH CHAPTER # 33 OF THE 2014 CODE. N | Signed-off |
| 2022-04-26 | 2023-01-24 | B00722994-I1 DOB NOW | Supported Scaffold PROPOSED INSTALLATION OF PIPE SCAFFOLD FOR REMEDIAL REPAIRS AS PER PLANS. PIPE SCAFFOLD SHALL COMPLY WITH CHAPTER#33 OF 2014 THE NY BUILDING CODE. NO CHANGE IN | Signed-off |
| 2022-04-26 | 2023-01-24 | B00722994-I1 DOB NOW | Supported Scaffold PROPOSED INSTALLATION OF PIPE SCAFFOLD FOR REMEDIAL REPAIRS AS PER PLANS. PIPE SCAFFOLD SHALL COMPLY WITH CHAPTER#33 OF 2014 THE NY BUILDING CODE. NO CHANGE IN | Signed-off |
| 2011-08-25 | 2012-01-09 | 320349324 BIS | Construction equipment (scaffold, fence, shed) / Construction equipment | ISSUED (initial) |
| 2011-08-25 | 2012-01-09 | 320349324 BIS | Equipment work / Other / general construction | ISSUED (initial) |
| 2002-02-12 | 2002-09-07 | 301294748 BIS | Equipment work / Fire suppression | ISSUED (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 1
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.
| Status | Issued | Type | Description | Number |
|---|---|---|---|---|
| Resolved/dismissed V*-DOB VIOLATION - DISMISSED | 2002-03-26 | LL6291-LOCAL LAW 62/91 - BOILERS BOILER REQUIRED | V*032602LL629124195 |
Source: DOB Violations — city dataset updated 2026-11-11; last loaded 2026-11-11
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 2026-11-11; last loaded 2026-11-11
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.
| Status | Issued | Severity | What it was for | Penalty / paid / balance | ECB # |
|---|---|---|---|---|---|
| Resolved Hearing: IN VIOLATION · Certification: CERTIFICATE ACCEPTED | 2022-06-14 | CLASS - 1 | AT THE TIME OF MY INSPECTION OF A 3 STORY BUILDING, I OBSERVED AN ERECTED SIDEWALK SHED AT THE BUILDINGS EXPOSURE # 1 NOT EXTENDED AT THE EXPOSURE # 2 TO PROTECT PEDESTRIANS AND PROPERTY AS PER CODE. STOP ALL E | $625 / $625 / $0 | 39502194K |
| Resolved Hearing: IN VIOLATION · Certification: CERTIFICATE ACCEPTED | 2022-04-20 | CLASS - 1 | AT ROOF LEVEL ABOVE PEDESTRIAN SIDEWALK PITCHED ROOF SLATE ROOF TILES DISPLACED AT MULTIPLE LOCATION AND IN DANGER FURTHER FALL., REPAIR AND/REPLACE | $1,250 / $1,250 / $0 | 39060660N |
Source: DOB ECB Violations — city dataset updated 2026-11-11; last loaded 2026-11-11
OATH tickets (all agencies) 1 unpaid of 21
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.
| Status | Date | Agency | Charge | Respondent | Imposed / paid / balance | Ticket # |
|---|---|---|---|---|---|---|
| Unpaid balance Default DOCKETED · DEFAULTED | 2026-02-02 | Fire Department Of Nyc | RECORDKEEPING | J G L DELI INC | $1,000 / $0 / $1,000 | 014228018P |
| No balance due PAID IN FULL | 2025-10-20 | Dos - Enforcement Agents | STORAGE OF RECEPTACLES NON-COLLECTION DAY | MIKE'S DELI | $50 / $50 / $0 | 049523434X |
| No balance due PAID IN FULL | 2024-10-21 | Sanitation Others | IMPROPER RECEPTACLE ALL BUSINESSES 1ST | MIKE'S DELI | $50 / $50 / $0 | 048529182J |
| No balance due PAID IN FULL | 2023-11-13 | Sanitation Others | FAILURE TO CLEAN 18 INCHES INTO STREET | LOPARNOS GEORGE | $50 / $50 / $0 | 048082573Z |
| No balance due PAID IN FULL | 2023-09-13 | Sanitation Piu | SPILLAGE FROM A MOTOR VEHICLE 1ST OFFENSE | WOHLFAHRT | $200 / $200 / $0 | 047254941P |
| No balance due PAID IN FULL · IN VIOLATION | 2022-06-14 | Dept. Of Buildings | MISCELLANEOUS VIOLATIONS | STEALH CONTRACTING INC | $625 / $625 / $0 | 039502194K |
| No balance due APPEAL DECIS RENDERD · IN VIOLATION | 2022-04-20 | Dept. Of Buildings | FAILURE TO MAINTAIN BUILDING IN CODE-COMPLIANT MANNER | LOPARNOS GEORGE | $1,250 / $1,250 / $0 | 039060660N |
| No balance due HEARING COMPLETED · IN VIOLATION | 2019-07-31 | Fire Department Of Nyc | GENERAL MAINTENANCE | J G L DELI INC | $0 / $0 / $0 | 011674512L |
| No balance due HEARING COMPLETED · IN VIOLATION | 2017-08-02 | Fire Department Of Nyc | GENERAL MAINTENANCE | JGL DELI INC | $0 / $0 / $0 | 011612682K |
| No balance due PAID IN FULL | 2016-09-01 | Dept Of Transportation | FAILURE TO PROPERLY EQUIP COMMERCIAL BICYCLE - 1ST OFFENSE | MIKES DELI | $100 / $100 / $0 | 0189174462 |
| No balance due HEARING COMPLETED · IN VIOLATION | 2016-03-23 | Fire Department Of Nyc | POSTING OF PERMITS AND RECORD KEEPING | J L DELI INC | — / — / — | 011446830M |
| No balance due PAID IN FULL | 2014-05-28 | MIKES DELI | $100 / $100 / $0 | 0185643160 |
Showing 12 of 21 records. The API and the source dataset have the full list.
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.
No HPD registration found. Registration is required for buildings with 3 or more apartments (and for 1–2 family homes where neither the owner nor family lives there).
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 0
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.
No records found in this dataset for this lot.
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.
| Opened | Agency | Complaint | Status | Closed |
|---|---|---|---|---|
| 2026-08-18 | NYPD | Illegal Parking – Blocked Sidewalk | Closed | 2026-08-19 |
| 2026-05-24 | NYPD | Noise - Residential – Loud Music/Party | Closed | 2026-05-24 |
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 4 Ave
- 9512 4th Avenue (17 ft) (18 open items)
- 9508 4th Avenue (17 ft) (one open item)
- 9506 4th Avenue (35 ft) (14 open items)
- 9504 4th Avenue (50 ft) (19 open items)
- 9502 4th Avenue (67 ft) (six open items)
- 9515 4th Avenue (382 ft) (19 open items)
Same tax block (6117), closest first
- 4 Avenue (50 ft)
- 378 95th Street (72 ft) (seven open items)
- 374 95th Street (111 ft)
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