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2124 Union Street, Brownsville, Brooklyn, NY 11212

BBL 3035310044 (Borough 3, Block 3531, Lot 44) · BIN 3081173, 3417699 · Last updated: · Brownsville · ZIP 11212

Summary · as of November 9, 2026

2124 Union Street (Brooklyn, NY 11212; tax lot BBL 3035310044) is a two-family home (building class B1: two-family home, brick), built around 1920, on a 2,017 sq ft lot zoned R6. City tax records list the owner as CARTHY, CLAUDETTE. The Department of Finance's final market value for tax year 2027 is $667,000. As of November 9, 2026, NYC Open Data shows no open DOB jobs, active DOB or DOB NOW safety violations, active ECB violations, open HPD violations or unpaid OATH tickets for this lot. (Source: NYC Open Data — DOB, HPD, OATH, DOF, DCP and ACRIS datasets — compiled by NYC Property Facts.)

Owner of record
CARTHY, CLAUDETTE
Building class
B1 · Two-family home, brick
Year built · units
1920 · 2 res.
Lot area · zoning
2,017 sq ft · R6
Market value (DOF)
$667,000 FY2027
Last priced deed
—
BBL
3035310044
BIN
3081173, 3417699

How to cite: NYC Property Facts, “2124 Union Street, Brooklyn, NY 11212 (BBL 3035310044)”, data as of 2026-11-09, https://nycpropertyfacts.com/ny/brooklyn/2124-union-street-3035310044. 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)
CARTHY, CLAUDETTEThe owner name on the city’s tax records. It can lag behind recent sales and is often an LLC.
Building class
B1 – Two-family home, brickThe Department of Finance’s category for what kind of building this is.
Land use
One- & two-family buildingsCity Planning’s broad category of how the lot is used.
Year built
1920Often an estimate for older buildings.
Floors
2
Units
2 residential / 2 totalResidential units are apartments; total includes stores and offices.
Buildings on lot
2
Lot size
2,017 sq ft (20.17 ft × 100 ft)
Building floor area
2,176 sq ft
Zoning
R6The zoning district sets what can be built and used here. Residential district.
Built vs. allowed density (FAR)
1.08 built / 2.43 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 3035310044 (Borough 3, Block 3531, Lot 44) · BIN 3081173, 3417699BBL 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 2026-11-09; Building Footprints — city dataset updated 2026-11-08; last loaded 2026-11-08

Tax assessment

How the Department of Finance values this lot for property tax.

Market value (tax year 2027, final roll)
$667,000The 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
$40,020The portion of market value that taxes are calculated on (capped by law for small homes).
Taxable value (final)
$13,973Assessed value minus any exemptions.
Tax class
Tax class 1 – 1–3 family homes (and some small mixed-use / vacant lots)
Tax yearRollMarket valueAssessed valueTax class
2027Final$667,000$40,0201
2026Final$766,000$45,9601
2025Final$771,000$46,2601

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

Sales & deed history 9

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
2016-07-21DEED$0 / not statedCarty, JennetCarthy, Paul; Carty, Christopher; Carthy, Claudette2016072300051001
1991-07-12DEED$0 / not statedCarty, WinstonCarty, JennetFT_3650001630065
1982-09-20DEED$0 / not statedBarrett, NormaCarty, WinstonFT_3600000928260
1980-07-02DEED$0 / not statedSecy Of Housing & Urban DvlptBarrett NormaBK_8030117001151
1980-04-09DEED$0 / not statedSchwartz Harold M Ref; Gonzalez Ephraim Deft EtalSecy Of Housing & Urban DvlptBK_8030115200940
1974-03-15DEED$0 / not statedMartinez Francisco NGonzalez EphraimBK_7430069700837
1973-11-08DEED$0 / not statedBatista FranciscaMartinez Francisco NBK_7330067001114
1970-11-23DEED$0 / not statedCollado Romon; Collado Romon MBatista FranciscaBK_7030044801408
1969-07-16DEED$0 / not statedPaulino Carmen LBatista Francisca; Callado RamonBK_6930034701719

Source: ACRIS Real Property Master — city dataset updated 2026-10-08; last loaded 2026-11-09; ACRIS Real Property Legals — city dataset updated 2026-10-08; last loaded 2026-11-09; ACRIS Real Property Parties — city dataset updated 2026-10-08; last loaded 2026-11-09

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 2026-11-08; last loaded 2026-11-09; DOB Job Application Filings (BIS) — city dataset updated 2026-11-08; last loaded 2026-11-09

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 2026-11-09; last loaded 2026-11-09; 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 2026-11-09

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 2026-11-09; last loaded 2026-11-09

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: DISMISSED · Certification: N/A - DISMISSED
2003-06-24Non-HazardousWORK W/O PERMIT WORK NOTED A FENCE ERECTED OVER 6 APPROX 6X5 SHADED DRIVEWAY REMEDY OBTAIN A PERMIT IF FEASIBLE RESTORE TO PRIOR LEGAL USE OF CONDITIOB$0 / $0 / $034407591R

Source: DOB ECB Violations — city dataset updated 2026-11-07; last loaded 2026-11-09

OATH tickets (all agencies) 0 unpaid of 4

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 Default
PAID IN FULL · DEFAULTED
2021-06-18Sanitation OthersFAILURE TO CLEAN 18 INCHES INTO STREETCARTHY CLAUDETTE$130 / $130 / $0047260630Z
No balance due Default
PAID IN FULL · DEFAULT
2014-06-13Sanitation DeptRECYC PLACED FOR COLLECTION W NON-RECYC 1 TO 8 DWELLING UNITSCARTY$25 / $25 / —041368123K
No balance due
PAID IN FULL
2008-10-10Dos - Enforcement AgentsNON-RECYCLABLES LEFT IN RECYCLING CONTAINER FOR COLLECTIONCARTY$25 / $25 / —041631160P
No balance due
HEARING COMPLETED · DISMISSED
2003-06-24— / — / —034407591R

Source: OATH Hearings Division Case Status — city dataset updated 2026-11-09; last loaded 2026-11-09

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 2026-11-09; HPD Registration Contacts — city dataset updated 2026-11-04; last loaded 2026-11-09

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 2026-11-09; last loaded 2026-11-09

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 2026-11-09; last loaded 2026-11-09

311 requests (last 12 months) 0

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.

No records found in this dataset for this lot.

Source: 311 Service Requests from 2020 to Present — city dataset updated 2026-11-09; last loaded 2026-11-09

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 Brownsville: Open HPD violations · Active DOB violations · Active ECB violations · Open DOB jobs · Unpaid OATH tickets

Closest on Union St

Same tax block (3531), closest first

All properties on Union St, Brooklyn · Brooklyn 11212

Open-item counts as of November 9, 2026; each section lists its own dataset date. Machine-readable: JSON API · Markdown · Plain text · API & MCP docs