5101 Avenue U, Marine Park-Mill Basin-Bergen Beach, Brooklyn, NY 11234
BBL 3085430001 (Borough 3, Block 8543, Lot 1) · BIN 3241972, 3814876 · Last updated: · Marine Park-Mill Basin-Bergen Beach · ZIP 11234
Also recorded in city data as: 5121 Ave U · 2473 Flatbush Ave
Summary · as of November 10, 2026
5101 Avenue U (Brooklyn, NY 11234; tax lot BBL 3085430001) is a store building (building class K1: store building (subtype K1)), built around 1950, on a 4,300 sq ft lot zoned C8-1. City tax records list the owner as 2425 SUM ASSOCIATES LLC; per ACRIS, a deed to this owner dated April 24, 2020 lists a price of $6,675,000 in a deed covering 3 lots. The Department of Finance's final market value for tax year 2027 is $1,382,000. As of November 10, 2026, NYC Open Data shows one DOB job with a permit issued but no sign-off, one active DOB safety violation (DOB NOW) and one OATH ticket with an unpaid balance. There were 12 311 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
- 2425 SUM ASSOCIATES LLC
- Building class
- K1 · Store building
- Year built · units
- 1950 · 0 res.
- Lot area · zoning
- 4,300 sq ft · C8-1
- Market value (DOF)
- $1,382,000 FY2027
- Last priced deed
- $6,675,000 · 2020-04-24
- BBL
- 3085430001
- BIN
- 3241972, 3814876
- 1Open DOB jobs (permit issued, no sign-off)
- 1Active DOB violationsBIS 0 · DOB NOW safety 1
- 0Active ECB violations
- 0Open HPD violations
- 1OATH tickets with unpaid balance
How to cite: NYC Property Facts, “5101 Avenue U, Brooklyn, NY 11234 (BBL 3085430001)”, data as of 2026-11-10, https://nycpropertyfacts.com/ny/brooklyn/5101-avenue-u-3085430001. 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)
- 2425 SUM ASSOCIATES 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
- 1950Often 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
- 4,300 sq ft (43 ft × 100 ft)
- Building floor area
- 4,263 sq ft (incl. 4,263 sq ft commercial)
- Zoning
- C8-1The zoning district sets what can be built and used here. Commercial district.
- Built vs. allowed density (FAR)
- 0.99 built / 0.00 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 3085430001 (Borough 3, Block 8543, Lot 1) · BIN 3241972, 3814876BBL 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 2026-11-10; 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)
- $1,382,000The 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
- $621,900The portion of market value that taxes are calculated on (capped by law for small homes).
- Taxable value (final)
- $621,900Assessed value minus any exemptions.
- Tax class
- Tax class 4 – commercial / industrial
| Tax year | Roll | Market value | Assessed value | Tax class |
|---|---|---|---|---|
| 2027 | Final | $1,382,000 | $621,900 | 4 |
| 2026 | Final | $1,303,000 | $586,350 | 4 |
| 2025 | Final | $1,561,000 | $702,450 | 4 |
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.
| Date | Type | Price | Seller (grantor) | Buyer (grantee) | Doc ID |
|---|---|---|---|---|---|
| 2020-04-24 | DEED | $6,675,000 one deed covering 3 lots; price is for all of them | Thaler Realty Corp. | Gbij Kp Realty Llc; 2425 Sum Associates Llc | 2020060100412001 |
| 1972-01-12 | DEED | $0 / not stated | Freedman Walter; Hirschhorn Jack; Barrer Roger; Farkas Robin; Farkas Alexander | Thaler Realty Corp | BK_7230053101225 |
| 1966-05-31 | DEED | $0 / not stated | Swj Realty Corp | Hirschhorn Jack; Barrer Roger; Freedman Walter; Farkas Alexander; Farkas Robin | BK_6630014600034 |
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 7
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 Entire · 2020-12-27 | B00366811-I1 DOB NOW | Alteration | 2020-09-17 | $1,000 |
| Not open SIGNED OFF · 2020-11-05 | 340752652 BIS | A2 – Alteration with multiple work types (no change to use/occupancy) | 2020-08-05 | $11,000 |
| Not open PLAN EXAM - IN PROCESS · 2020-07-21 | 340748016 BIS | A2 – Alteration with multiple work types (no change to use/occupancy) | 2020-07-21 | $65,000 |
| Not open SIGNED OFF · 2021-10-08 | 340748043 BIS | A2 – Alteration with multiple work types (no change to use/occupancy) | 2020-07-21 | $65,000 |
| Not open SIGNED OFF · 1996-08-19 | 300531878 BIS | A2 – Alteration with multiple work types (no change to use/occupancy) | 1996-06-27 | $15,000 |
| Not open SIGNED OFF · 1996-03-01 | 300439032 BIS | A2 – Alteration with multiple work types (no change to use/occupancy) | 1995-05-31 | $3,000 |
| Not open PLAN EXAM - APPROVED · 1993-08-05 | 300284305 BIS | A2 – Alteration with multiple work types (no change to use/occupancy) | 1993-07-16 | $10,000 |
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 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 |
|---|---|---|---|---|
| 2020-10-22 | 2021-10-09 | 340748043 BIS | Equipment work / Other / general construction | ISSUED (renewal) |
| 2020-10-05 | 2020-10-10 | 340748043 BIS | Equipment work / Other / general construction | ISSUED (initial) |
| 2020-09-22 | 2020-10-08 | B00366811-I1 DOB NOW | Construction Fence construction equipment fence | Permit Issued |
| 2020-08-10 | 2021-04-22 | 340752652 BIS | Equipment work / Other / general construction | ISSUED (initial) |
| 2016-11-30 | 2017-07-02 | 321424204 BIS | Sign | ISSUED (initial) |
| 2016-11-30 | 2017-07-02 | 321424197 BIS | Sign | ISSUED (initial) |
| 1996-08-02 | 1997-08-02 | 300531878 BIS | Equipment work / Mechanical/HVAC | ISSUED (initial) |
| 1996-08-02 | 1997-08-02 | 300531878 BIS | Equipment work / Other / general construction | ISSUED (initial) |
| 1995-06-19 | 1995-10-01 | 300439032 BIS | Equipment work / Fuel storage | ISSUED (initial) |
| 1995-06-19 | 1995-10-01 | 300439032 BIS | Equipment work / Other / general construction | 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 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) 1 active of 1
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.
| Status | Issued | Type | Device | Number | Remarks |
|---|---|---|---|---|---|
| Active Active | 2025-09-18 | FTF-PL-PER | Gas Piping - LL152 | NOD-FTF-PL-PER-202206-0098156 | Cycle 1, Sub-cycle B (premises is in Community District 18) |
Source: DOB Safety Violations (DOB NOW) — city dataset updated 2026-11-09; last loaded 2026-11-10
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.
| Status | Issued | Severity | What it was for | Penalty / paid / balance | ECB # |
|---|---|---|---|---|---|
| Resolved Certification: CERTIFICATE ACCEPTED | 2017-01-23 | CLASS - 2 | FAILURE TO PROVIDE APPROVED PLAN AT JOB SITE AT TIME OF INSPECTION. PREMISES UNDER JOB #321424204 ACTIVE PERMIT 07.02.17 NO PLAN AT JOB SITE AT TIME OF INSPECTION. RMDY: PROVIDE APPROVED PLAN. CONTACT SEP | $2,500 / $1,603 / $0 | 35184279N |
Source: DOB ECB Violations — city dataset updated 2026-11-07; last loaded 2026-11-10
OATH tickets (all agencies) 1 unpaid of 83
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 | 2018-10-01 | Dos - Enforcement Agents | STORAGE OF RECEPTACLES - 2ND OFFENSE | MATTRESS FIRM | $300 / $0 / $300 | 041909805R |
| No balance due PAID IN FULL · SETTL IN-VIO | 2025-11-14 | Sanitation Others | DIRTY AREA COMM MAN INDUSTRIAL MIXED USE 1ST | APPLIANCES 4 LESS | $450 / $254 / $0 | 049240922P |
| No balance due PAID IN FULL | 2024-10-09 | Sanitation Others | IMPROPER RECEPTACLE ALL BUSINESSES 1ST | CLARITY EYECARE | $50 / $50 / $0 | 048609246J |
| No balance due PAID IN FULL | 2024-04-15 | Dos - Enforcement Agents | SIDEWALK OBSTRUCTION | 8CE APPLIANCE BROOKLYN INC | $50 / $50 / $0 | 047976630M |
| No balance due Default PAID IN FULL · DEFAULTED | 2024-04-12 | Dos - Enforcement Agents | DIRTY AREA | 8CE APPLIANCE BROOKLYN INC | $80 / $80 / $0 | 048374030R |
| No balance due PAID IN FULL | 2022-05-04 | Dos - Enforcement Agents | STORAGE OF RECEPTACLES 1ST OCCURRENCE | CLARITY EYE CARE | $50 / $50 / $0 | 047367987L |
| No balance due PAID IN FULL | 2021-08-27 | Dos - Enforcement Agents | DIRTY SIDEWALK DIRTY AREA | ALADDIN GIFTS | $100 / $100 / $0 | 047303231Z |
| No balance due PAID IN FULL | 2021-06-14 | Dos - Enforcement Agents | FAILURE TO CLEAN 18 INCHES INTO STREET | ALADDIN KINGS LLC | $100 / $100 / $0 | 047144991X |
| No balance due PAID IN FULL | 2021-05-04 | Dos - Enforcement Agents | DIRTY AREA | ALADDIN GIFTS | $100 / $100 / $0 | 046962767J |
| No balance due HEARING COMPLETED · IN VIOLATION | 2021-04-13 | Dos - Enforcement Agents | POSTING OF SIGN PERMIT, WASTE REMOVAL | CLARITY EYE CARE | $0 / $0 / $0 | 047128925H |
| No balance due PAID IN FULL | 2021-04-11 | Dos - Enforcement Agents | POSTING OF SIGN PERMIT, WASTE REMOVAL | ALADDIN GIFTS | $100 / $100 / $0 | 047144813N |
| No balance due PAID IN FULL | 2021-01-02 | Sanitation Others | FAILURE TO CLEAN 18 INCHES INTO STREET | 2425 SUM ASSOCIATES LLC | $100 / $100 / $0 | 0212626545 |
Showing 12 of 83 records. The API and the source dataset have the full list.
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.
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 2026-11-10; 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) 12
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 |
|---|---|---|---|---|
| 2026-05-28 | DSNY | Dirty Condition – Trash | Closed | 2026-06-01 |
| 2026-05-23 | DPR | Damaged Tree – Branch or Limb Has Fallen Down | Closed | 2026-05-25 |
| 2026-05-19 | DSNY | Dirty Condition – Trash | Closed | 2026-05-20 |
| 2026-02-24 | DSNY | Snow or Ice – Sidewalk | Closed | 2026-02-28 |
| 2025-12-31 | NYPD | Illegal Parking – Double Parked Blocking Vehicle | Closed | 2025-12-31 |
| 2025-12-29 | NYPD | Illegal Parking – Double Parked Blocking Traffic | Closed | 2025-12-29 |
| 2025-11-22 | DSNY | Dirty Condition – Trash | Closed | 2025-11-24 |
| 2025-11-22 | NYPD | Abandoned Vehicle – With License Plate | Closed | 2025-11-22 |
| 2025-11-20 | DSNY | Dirty Condition – Trash | Closed | 2025-11-21 |
| 2025-11-20 | DSNY | Derelict Vehicles – Derelict Vehicles | Closed | 2025-11-21 |
Showing 10 of 12 records. The API and the source dataset have the full list.
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 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
- 5120 Avenue U (0.15 mi) (177 open items)
- 5102 Avenue U (0.19 mi) (17 open items)
Same tax block (8543), closest first
- 2475 Flatbush Avenue (64 ft) (20 open items)
- 2461 Flatbush Avenue (140 ft) (10 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