4201 Avenue U, Marine Park-Mill Basin-Bergen Beach, Brooklyn, NY 11234
BBL 3085420008 (Borough 3, Block 8542, Lot 8) · BIN 3241947 · Last updated: · Marine Park-Mill Basin-Bergen Beach · ZIP 11234
Summary · as of November 10, 2026
4201 Avenue U (Brooklyn, NY 11234; tax lot BBL 3085420008) is a store building (building class K1: store building (subtype K1)), built around 1972, on a 3,000 sq ft lot zoned R4. City tax records list the owner as AI BUSINESS OPERATIONS, LLC; per ACRIS, a deed to this owner dated April 13, 2026 lists a price of $3,100,000 in a deed covering 3 lots. The Department of Finance's final market value for tax year 2027 is $641,000. 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 six active ECB violations. There was one 311 request 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
- AI BUSINESS OPERATIONS, LLC
- Building class
- K1 · Store building
- Year built · units
- 1972 · 0 res.
- Lot area · zoning
- 3,000 sq ft · R4
- Market value (DOF)
- $641,000 FY2027
- Last priced deed
- $3,100,000 · 2026-04-13
- BBL
- 3085420008
- BIN
- 3241947
- 2Open DOB jobs (permit issued, no sign-off)
- 0Active DOB violationsBIS 0 · DOB NOW safety 0
- 6Active ECB violations
- 0Open HPD violations
- 0OATH tickets with unpaid balance
How to cite: NYC Property Facts, “4201 Avenue U, Brooklyn, NY 11234 (BBL 3085420008)”, data as of 2026-11-10, https://nycpropertyfacts.com/ny/brooklyn/4201-avenue-u-3085420008. 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)
- AI BUSINESS OPERATIONS, LLCThe owner name on the city’s tax records. It can lag behind recent sales and is often an LLC.
- Building class
- K1 – Store building (subtype K1)The Department of Finance’s category for what kind of building this is.
- Land use
- Commercial & officeCity Planning’s broad category of how the lot is used.
- Year built
- 1972Often an estimate for older buildings.
- Floors
- 1
- Units
- 0 residential / 1 totalResidential units are apartments; total includes stores and offices.
- Buildings on lot
- 1
- Lot size
- 3,000 sq ft (50 ft × 60 ft)
- Building floor area
- 3,000 sq ft (incl. 3,000 sq ft commercial)
- Zoning
- R4, C2-2The 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)
- 1.00 built / 1.00 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 3085420008 (Borough 3, Block 8542, Lot 8) · BIN 3241947BBL 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)
- $641,000The 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
- $288,450The portion of market value that taxes are calculated on (capped by law for small homes).
- Taxable value (final)
- $251,495Assessed value minus any exemptions.
- Tax class
- Tax class 4 – commercial / industrial
| Tax year | Roll | Market value | Assessed value | Tax class |
|---|---|---|---|---|
| 2027 | Final | $641,000 | $288,450 | 4 |
| 2026 | Final | $627,000 | $282,150 | 4 |
| 2025 | Final | $577,000 | $259,650 | 4 |
Source: DOF Property Valuation and Assessment Data — city dataset updated 2026-09-14; last loaded 2026-11-12
Sales & deed history 5
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 |
|---|---|---|---|---|---|
| 2026-04-13 | DEED | $3,100,000 one deed covering 3 lots; price is for all of them | Marc Brothers Holdings Llc | Ai Business Operations, Llc | 2026041500827001 |
| 2007-11-29 | DEED | $2,850,000 one deed covering 3 lots; price is for all of them | Corner U, Llc | Marc Brothers Holdings Llc | 2007120500238001 |
| 2003-10-01 | DEED | $0 / not stated | Angelastro, Marie | Corner U, Llc | 2003100101221001 |
| 2003-08-05 | DEEDO | $0 / not stated | Petrocelli, Geraldine; Granatelli, Gloria; Angelastro Jr., George G | Angelastro, Marie | 2003080700906003 |
| 1970-12-28 | DEED | $0 / not stated | Angelastro George | Angelastro George | BK_7030045501557 |
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 5
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 · 2010-02-24 | 320012623 BIS | A2 – Alteration with multiple work types (no change to use/occupancy) | 2009-05-04 | $53,700 |
| Permitted, not signed off PERMIT ISSUED - ENTIRE JOB/WORK · 2000-10-17 | 301138917 BIS | A3 – Minor alteration (one type of work) | 2000-09-29 | $5,000 |
| Not open SIGNED OFF · 1998-07-21 | 300640741 BIS | A2 – Alteration with multiple work types (no change to use/occupancy) | 1997-05-27 | $20,000 |
| Not open SIGNED OFF · 2000-01-31 | 300289854 BIS | A1 – Major alteration (changes use, egress or occupancy) | 1993-08-16 | $200,000 |
| Not open SIGNED OFF · 1996-11-20 | 300286759 BIS | A2 – Alteration with multiple work types (no change to use/occupancy) | 1993-07-29 | $15,000 |
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 17
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 |
|---|---|---|---|---|
| 2010-02-24 | 2010-10-05 | 320012623 BIS | Equipment work / Mechanical/HVAC | ISSUED (initial) |
| 2009-12-22 | 2010-12-22 | 320012623 BIS | Plumbing / Plumbing | ISSUED (initial) |
| 2009-12-18 | 2010-04-30 | 320012623 BIS | Equipment work / Other / general construction | ISSUED (initial) |
| 2009-12-16 | 2010-04-30 | 320012623 BIS | Construction equipment (scaffold, fence, shed) / Construction equipment | RE-ISSUED (initial) |
| 2000-10-17 | 2001-05-28 | 301138917 BIS | Alteration / Other / general construction | ISSUED (initial) |
| 1998-05-27 | 1999-05-27 | 300640741 BIS | Plumbing / Plumbing | ISSUED (initial) |
| 1998-04-10 | 1998-05-01 | 300640741 BIS | Equipment work / Other / general construction | ISSUED (initial) |
| 1998-04-06 | 1998-05-01 | 300640741 BIS | Equipment work / Mechanical/HVAC | ISSUED (initial) |
| 1997-05-28 | 1998-05-28 | 300289854 BIS | Plumbing / Plumbing | ISSUED (initial) |
| 1996-11-22 | 1997-09-22 | 300289854 BIS | Alteration | ISSUED (initial) |
| 1996-11-22 | 1997-09-22 | 300289854 BIS | Alteration | ISSUED (initial) |
| 1996-11-22 | 1997-09-22 | 300289854 BIS | Construction equipment (scaffold, fence, shed) / Construction equipment | ISSUED (initial) |
Showing 12 of 17 records. The API and the source dataset have the full list.
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 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.
| Status | Issued | Type | Description | Number |
|---|---|---|---|---|
| Resolved/dismissed V*-DOB VIOLATION - DISMISSED | 2015-03-25 | AEUHAZ1-FAIL TO CERTIFY CLASS 1 NONE | FAILURE TO CERTIFY CORRECTION ON IMMEDIATELY HAZARDOUS (CLASS 1) ECB VIOLATION | V*032515AEUHAZ100194 |
| Resolved/dismissed V*-DOB VIOLATION - DISMISSED | 2015-03-25 | AEUHAZ1-FAIL TO CERTIFY CLASS 1 NONE | FAILURE TO CERTIFY CORRECTION ON IMMEDIATELY HAZARDOUS (CLASS 1) ECB VIOLATION | V*032515AEUHAZ100192 |
| Resolved/dismissed V*-DOB VIOLATION - DISMISSED | 2015-03-25 | AEUHAZ1-FAIL TO CERTIFY CLASS 1 NONE | FAILURE TO CERTIFY CORRECTION ON IMMEDIATELY HAZARDOUS (CLASS 1) ECB VIOLATION | V*032515AEUHAZ100193 |
| Resolved/dismissed V*-DOB VIOLATION - DISMISSED | 1989-02-10 | ES-ELECTRIC SIGNS NONE | V*021089ESST1802W | |
| Resolved/dismissed V*-DOB VIOLATION - DISMISSED | 1989-02-10 | ES-ELECTRIC SIGNS NONE | V*021089ESST1804W | |
| Resolved/dismissed V*-DOB VIOLATION - DISMISSED | 1989-02-10 | ES-ELECTRIC SIGNS NONE | V*021089ESST1803W | |
| Resolved/dismissed V*-DOB VIOLATION - DISMISSED | 1989-02-10 | ES-ELECTRIC SIGNS NONE | V*021089ESST1801W |
Source: DOB Violations — city dataset updated 2026-11-11; last loaded 2026-11-11
DOB safety violations (DOB NOW) 0 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.
No active DOB NOW safety violations for this lot.
3 resolved or not active
| Status | Issued | Type | Device | Number | Remarks |
|---|---|---|---|---|---|
| Not active Dismissed | 2015-03-25 | FTC-AEU-HAZ | AEUHAZ | 032515AEUHAZ100193 | |
| Not active Dismissed | 2015-03-25 | FTC-AEU-HAZ | AEUHAZ | 032515AEUHAZ100192 | |
| Not active Dismissed | 2015-03-25 | FTC-AEU-HAZ | AEUHAZ | 032515AEUHAZ100194 |
Source: DOB Safety Violations (DOB NOW) — city dataset updated 2026-11-11; last loaded 2026-11-11
ECB violations (DOB) 6 active of 7
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: DEFAULT · Certification: CERTIFICATE ACCEPTED | 1993-07-20 | Non-Hazardous | WORK WITHOUT A PERMIT. WORK NOTED: PLACING METAL STUDS, COVERING WITH SHEET ROCK TO FORM PARTITIONS THRUOUT 1ST FLOOR. REMEDY STOP ALL WORK, OBTAIN APPROVALS AND PERMITS BEFORE CONTINUING | $1,000 / $1,014 / $0 | 34094145M |
| Active Hearing: STIPULATION/IN-VIO · Certification: NO COMPLIANCE RECORDED | 2014-12-23 | CLASS - 2 | FAILURE TO PROVIDE/MAINTAIN SUFFICIENT ACCESS,WORK SPACE ABOUT ELECTRICAL EQUIPMENT. OBSERVED AT 1:45PM THAT ACCESS TO MAIN SERVICE DISCONNECT SWITCH & CIRCUIT BREAKER PANEL,METER IS OBSTRUCTED BY STORAGE MIN 3 | $250 / $250 / $0 | 35122674J |
| Active Hearing: IN VIOLATION · Certification: NO COMPLIANCE RECORDED | 2014-12-23 | CLASS - 1 | ELECTRICAL WORK W/O PERMIT. ELECTRICAL WIRING INSIDE & OUTSIDE PRIOR TO OBTAINING PERMIT. BRACH CIRCUITS,FLUORESCENT FIXTURES,SWITCHES RECEPTICLE OUTLETS,MOTORS,CONTROL WIRING,OBSERVED SAID VIOLATIONS AT 1:45PM | $1,600 / $1,600 / $0 | 35122669P |
| Active Hearing: IN VIOLATION · Certification: NO COMPLIANCE RECORDED | 2014-12-23 | CLASS - 1 | SEC. 400.8 MISC. VIOLATION OF THE ELECTRICAL CODE TECHNICAL STANDARDS 1:45PM OBSERVED FLEXIBLE CORDS USED AS PERMANENT WIRING METHOD FOR BRANCH CIRCUITS & POWER TO MOTORIZED GATE MOTORS FOR BRANCH CIRCUITS AND | $1,600 / $1,600 / $0 | 35122670M |
| Active Hearing: IN VIOLATION · Certification: NO COMPLIANCE RECORDED | 2014-12-23 | CLASS - 1 | UNAPPROVED/UNSAFE,UNSUITABLE ELECTRICAL EQUIPMENT APPARATUS,MATERIALS,DEVICES,APPLIANCES OR WIRING IN USE. AT 1:45PM OBSERVED OUTSIDE UNDER CANOPY INDOOR FIXTURES USED OUTDOORS. NOT APPROVED FOR (DAMPER)WET LOC | $1,600 / $1,600 / $0 | 35122671Y |
| Active Hearing: IN VIOLATION · Certification: NO COMPLIANCE RECORDED | 2014-12-23 | CLASS - 2 | FAIL TO PROVIDE EFFECTIVE ELECTRICAL CONTINUITY FOR METAL RACEWAYS,ENCLOSURES,CABLE ARMOR. OBSERVED AT 1:45PM THAT ARMORED CABLES ARE OPEN SPLICE BOX TO METERIZAL GATE MOTORS. GATES & MOTORS ARE NOT GROUNDED & | $1,200 / $1,200 / $0 | 35122672X |
| Active Hearing: STIPULATION/IN-VIO · Certification: NO COMPLIANCE RECORDED | 2014-12-23 | CLASS - 2 | LUMINAIRES(FIXTURES)& LAMP HOLDERS NOT INSTALLED IN AN APPROVED MANNER. AT 1:45PM OBSERVED THAT FLURESENT FIXTURES TRU-OUT STORE IS NOT INSTALLED IN APPROVED MANNER W/APPROVED MATERIAL,FIXTURES USING LIGHT CHAI | $250 / $250 / $0 | 35122673H |
Source: DOB ECB Violations — city dataset updated 2026-11-11; last loaded 2026-11-11
OATH tickets (all agencies) 0 unpaid of 73
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 # |
|---|---|---|---|---|---|---|
| No balance due PAID IN FULL · SETTL IN-VIO | 2023-08-31 | Sanitation Others | DIRTY AREA | WONDERSHAPE | $300 / $206 / $0 | 047908340J |
| No balance due PAID IN FULL · SETTL IN-VIO | 2022-09-20 | Dos - Enforcement Agents | ILLEGAL POSTING OF HANDBILL NOTICE | SAYCHEEEZE ENTERTAINMENT | $125 / $126 / $0 | 047441227L |
| No balance due PAID IN FULL | 2018-10-22 | Pcs - Dohmh | FAIL TO ELIMINATE RODENT INFESTATION SHOWN BY ACTIVE RODENT SIGNS 1ST | MARC BROTHERS HOLDINGS LLC | $300 / $300 / $0 | 0801466912 |
| No balance due PAID IN FULL · IN VIOLATION | 2016-05-07 | Dos - Enforcement Agents | DIRTY SIDEWALK DIRTY AREA | MARINE PARK DISCOUNT INC | $100 / $100 / — | 041519319H |
| No balance due PAID IN FULL · IN VIOLATION | 2014-12-23 | Dept. Of Buildings | UNAPPROVED UNSAFE UNSUITABLE ELECTRICAL EQUIPMENT OR WIRING IN USE | MARC BROTHERS HOLDINGS LLC | $1,600 / $1,600 / — | 035122671Y |
| No balance due PAID IN FULL · STIPULATED | 2014-12-23 | Dept. Of Buildings | LUMINAIRES AND LAMPHOLDERS NOT INSTALLED IN AN APPROVED MANNER | MARC BROTHERS HOLDINGS LLC | $250 / $250 / — | 035122673H |
| No balance due PAID IN FULL · IN VIOLATION | 2014-12-23 | FAIL TO PROV EFF ELECT CONT FOR METAL RACEWAYS ENCLOSURES CABLE ARMOR | MARC BROTHERS HOLDINGS LLC | $1,200 / $1,200 / — | 035122672X | |
| No balance due PAID IN FULL · IN VIOLATION | 2014-12-23 | Dept. Of Buildings | MISCELLANEOUS VIOLATION OF THE ELECTRICAL CODE TECHNICAL STANDARDS | MARC BROTHERS HOLDINGS LLC | $1,600 / $1,600 / — | 035122670M |
| No balance due PAID IN FULL · IN VIOLATION | 2014-12-23 | Dept. Of Buildings | ELECTRICAL WORK WITHOUT A PERMIT | MARC BROTHERS HOLDINGS LLC | $1,600 / $1,600 / — | 035122669P |
| No balance due PAID IN FULL · STIPULATED | 2014-12-23 | Dept. Of Buildings | FAILURE TO PROVIDE MAINTAIN ACCESS WORK SPACE ABOUT ELEC EQUIP | MARC BROTHERS HOLDINGS LLC | $250 / $250 / — | 035122674J |
| No balance due WRITTEN OFF · WRITTEN OFF | 2013-07-13 | Dos - Enforcement Agents | FAILURE TO CLEAN 18 INCHES INTO STREET | BIG DEAL FURNITURE STORES INC | $300 / $0 / $0 | 041784632L |
| No balance due WRITTEN OFF · WRITTEN OFF | 2012-08-04 | Dos - Enforcement Agents | FAILURE TO CLEAN 18 INCHES INTO STREET | BIG DEAL FURNITURE STORE INC | $300 / $0 / $0 | 041695775Y |
Showing 12 of 73 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) 1
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 |
|---|---|---|---|---|
| 2026-09-12 | DOT | Curb Condition – Broken Curb | Closed | 2026-10-15 |
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 Marine Park-Mill Basin-Bergen Beach: Open HPD violations · Active DOB violations · Active ECB violations · Open DOB jobs · Unpaid OATH tickets
Closest on Ave U
- 4209 Avenue U (55 ft) (two open items)
- 4213 Avenue U (128 ft) (two open items)
- 4202 Avenue U (173 ft)
- 4206 Avenue U (179 ft) (one open item)
Same tax block (8542), closest first
- 2175 Hendrickson Street (51 ft)
- 2171 Hendrickson Street (85 ft) (one open item)
- 2169 Hendrickson Street (104 ft)
- 2165 Hendrickson Street (124 ft)
- 2163 Hendrickson Street (144 ft)
- 2159 Hendrickson Street (172 ft) (two open items)
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