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1124 Flatbush Avenue, Brooklyn, NY 11226

BBL 3051640024 (Borough 3, Block 5164, Lot 24) · BIN 3336233, 3336232 · Last updated:

Also recorded in city data as: 1126 Flatbush Ave

Summary · as of October 31, 2026

1124 Flatbush Avenue (Brooklyn, NY 11226; tax lot BBL 3051640024) is a 4-unit mixed-use building with apartments and ground-floor commercial space (building class S4: mixed-use: four-family home with one store or office), built around 1930, on a 3,853 sq ft lot zoned R7A. City tax records list the owner as BAHNSEN, ANDREW H. The Department of Finance's final market value for tax year 2027 is $992,000. As of October 31, 2026, NYC Open Data shows one DOB job with a permit issued but no sign-off and five OATH tickets with an unpaid balance. There were three 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
BAHNSEN, ANDREW H
Building class
S4 · Mixed-use: four-family home with one store or office
Year built · units
1930 · 4 res.
Lot area · zoning
3,853 sq ft · R7A
Market value (DOF)
$992,000 FY2027
Last priced deed
—
BBL
3051640024
BIN
3336233, 3336232

How to cite: NYC Property Facts, “1124 Flatbush Avenue, Brooklyn, NY 11226 (BBL 3051640024)”, data as of 2026-10-31, https://nycpropertyfacts.com/ny/brooklyn/1124-flatbush-avenue-3051640024. 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)
BAHNSEN, ANDREW HThe owner name on the city’s tax records. It can lag behind recent sales and is often an LLC.
Building class
S4 – Mixed-use: four-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
1930Often an estimate for older buildings.
Floors
3
Units
4 residential / 5 totalResidential units are apartments; total includes stores and offices.
Buildings on lot
2
Lot size
3,853 sq ft (40 ft × 96.33 ft)
Building floor area
8,040 sq ft (incl. 3,618 sq ft commercial)
Zoning
R7A, R6A, C2-4The 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)
2.09 built / 4.00 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 3051640024 (Borough 3, Block 5164, Lot 24) · BIN 3336233, 3336232BBL 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 2026-11-02; 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)
$992,000The 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
$446,400The portion of market value that taxes are calculated on (capped by law for small homes).
Taxable value (final)
$76,986Assessed value minus any exemptions.
Tax class
Tax class 2A – residential rental, 4–6 units
Tax yearRollMarket valueAssessed valueTax class
2027Final$992,000$446,4002A
2026Final$1,164,000$523,8002A
2025Final$970,400$436,6802A

Source: DOF Property Valuation and Assessment Data — city dataset updated 2026-09-14; data as of 2026-11-02

Sales & deed history 4

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
2015-05-13DEED$0 / not statedBahnsen, Andrew HBahnsen, Joann; Bahnsen, Andrew H2015051900595001
1998-05-04DEED$0 / not statedBahnsen, HeleneBahnsen, Andrew H.FT_3740006101274
1971-12-16DEED$0 / not statedBoegemann Helene C; Bahnsen Henry J; Bahnsen Jacob PBahnsen HeleneBK_7130052600776
1966-01-13DEED$0 / not statedHermann HenrietteBahnsen HenryBK_6630001100256

Source: ACRIS Real Property Master — city dataset updated 2026-10-08; data as of 2026-11-02; ACRIS Real Property Legals — city dataset updated 2026-10-08; data as of 2026-11-02; ACRIS Real Property Parties — city dataset updated 2026-10-08; data as of 2026-11-02

DOB job filings 1 open of 8

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.

StatusJob #TypeFiledEst. cost
Permitted, not signed off
PERMIT ISSUED - PARTIAL JOB · 1994-04-07
300297391
BIS
A2 – Alteration with multiple work types (no change to use/occupancy)1993-09-13$1,800
Not open
SIGNED OFF · 2015-12-14
340299885
BIS
A3 – Minor alteration (one type of work)2015-09-04—
Not open
SIGNED OFF · 2015-12-14
340299894
BIS
A3 – Minor alteration (one type of work)2015-09-04—
Not open
SIGNED OFF · 2015-12-10
340299956
BIS
A3 – Minor alteration (one type of work)2015-09-04—
Not open
SIGNED OFF · 2015-12-10
340299992
BIS
A3 – Minor alteration (one type of work)2015-09-04—
Not open
SIGNED OFF · 2008-10-22
310034389
BIS
A2 – Alteration with multiple work types (no change to use/occupancy)2007-10-17$79,000
Not open
SIGNED OFF · 2002-01-17
301084886
BIS
A2 – Alteration with multiple work types (no change to use/occupancy)2000-10-04$8,000
Not open
PLAN EXAM - DISAPPROVED · 1991-08-20
300116700
BIS
A2 – Alteration with multiple work types (no change to use/occupancy)1991-08-13$2,000

Source: DOB NOW: Build – Job Application Filings — city dataset updated 2026-11-01; data as of 2026-11-02; DOB Job Application Filings (BIS) — city dataset updated 2026-10-30; data as of 2026-10-31

Work permits 11

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.

IssuedExpiresJob #WorkPermit status
2015-09-102016-09-09340299894
BIS
Construction equipment (scaffold, fence, shed) / Construction equipmentISSUED (initial)
2015-09-092016-09-08340299956
BIS
Construction equipment (scaffold, fence, shed) / Construction equipmentISSUED (initial)
2015-09-092016-09-08340299885
BIS
Construction equipment (scaffold, fence, shed) / Construction equipmentISSUED (initial)
2015-09-092016-09-08340299992
BIS
Construction equipment (scaffold, fence, shed) / Construction equipmentISSUED (initial)
2008-03-072009-03-07310034389
BIS
Plumbing / PlumbingISSUED (initial)
2007-10-172008-06-30310034389
BIS
Equipment work / Mechanical/HVACISSUED (initial)
2007-10-172007-12-31310034389
BIS
Construction equipment (scaffold, fence, shed) / Construction equipmentISSUED (initial)
2007-10-172008-06-30310034389
BIS
Equipment work / Other / general constructionISSUED (initial)
2000-10-102001-06-30301084886
BIS
Equipment work / Other / general constructionISSUED (initial)
2000-10-102000-12-31301084886
BIS
Construction equipment (scaffold, fence, shed) / Construction equipmentISSUED (initial)
1994-04-071995-03-23300297391
BIS
Equipment work / Fire suppressionISSUED (initial)

Source: DOB NOW: Build – Approved Permits — city dataset updated 2026-11-02; data as of 2026-11-02; DOB Permit Issuance (BIS) — city dataset updated 2026-10-31; data as of 2026-10-31

DOB violations 0 active of 5

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
Resolved/dismissed
V*-DOB VIOLATION - DISMISSED
2007-01-19LL6291-LOCAL LAW 62/91 - BOILERS BOILER REQUIREDV*011907LL629116635
Resolved/dismissed
V*-DOB VIOLATION - DISMISSED
2004-02-13LL6291-LOCAL LAW 62/91 - BOILERS BOILER REQUIREDV*021304LL629118556
Resolved/dismissed
V*-DOB VIOLATION - DISMISSED
2000-10-18C-CONSTRUCTION OTHER OPTIONALV*101800C14TM01
Resolved/dismissed
V*-DOB VIOLATION - DISMISSED
1994-06-01LL6291-LOCAL LAW 62/91 - BOILERS BOILER REQUIREDV*060194LL629118813
Resolved/dismissed
V*-DOB VIOLATION - DISMISSED
1993-06-01LL6291-LOCAL LAW 62/91 - BOILERS BOILER REQUIREDV*060193LL629118812

Source: DOB Violations — city dataset updated 2026-11-02; data as of 2026-11-02

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
2000-10-18Non-HazardousWORK DOES NOT CONFORM TO APPROVED PLANS.NON-CONFORMING WORK NOTED:UNDER A DIRECTIVE 14/.TOW STORES HAVE BEEN COMBINES TO ONE.PARTITION BETWEEN STRORES WAS REMOVEDMALSO CHANGE OF OCCUPANCY FROM RESTAURANT TO DIS$0 / $0 / $034265384N

Source: DOB ECB Violations — city dataset updated 2026-10-31; data as of 2026-11-02

OATH tickets (all agencies) 5 unpaid of 250

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 #
Unpaid balance Default
DEFAULTED · DEFAULTED
2026-06-06Sanitation OthersFAILURE TO CLEAN 18 INCHES INTO STREETBAHNSEN ANDREW H$300 / $0 / $300049839711X
Unpaid balance Default
DEFAULTED · DEFAULTED
2019-09-28Police DepartmentOPEN CONTAINER CONSUMPTION OF ALCOHOL ON STREETSJONES$25 / $0 / $250199879819
Unpaid balance
APPEAL DECIS RENDERD · IN VIOLATION
2007-06-20Dos - Enforcement AgentsILLEGAL POSTING OF HANDBILL NOTICENAMASKAR NYC INC$75 / — / $75041740566H
Unpaid balance
APPEAL DECIS RENDERD · IN VIOLATION
2007-06-20Dos - Enforcement AgentsILLEGAL POSTING OF HANDBILL NOTICENAMASKAR NYC INC$75 / — / $75041740567J
Unpaid balance
APPEAL DECIS RENDERD · IN VIOLATION
2007-06-20Dos - Enforcement AgentsILLEGAL POSTING OF HANDBILL NOTICENAMASKAR NYC INC$75 / — / $75041740565X
No balance due
PAID IN FULL
2026-08-31Dos - Enforcement AgentsSIDEWALK OBSTRUCTION COMM MAN INDUSTRIAL MIXED USE 1STJ K FLATBUSH$50 / $50 / $0049907845N
No balance due
PAID IN FULL
2026-06-12Dos - Enforcement AgentsSIDEWALK OBSTRUCTION COMM MAN INDUSTRIAL MIXED USE 1STJ K FLATBUSH$50 / $50 / $0049845326K
No balance due Default
PAID IN FULL · DEFAULTED
2026-04-07Sanitation OthersFAILURE TO CLEAN 18 INCHES INTO STREETBAHNSEN ANDREW H$80 / $80 / $0049737039J
No balance due
PAID IN FULL
2025-10-14Sanitation PoliceSIDEWALK OBSTRUCTION COMM MAN INDUSTRIAL MIXED USE 1STJK FLATBUSH AVE$50 / $50 / $0049484629R
No balance due
PAID IN FULL
2025-10-11Police DepartmentUNLAWFUL BICYCLE RIDING ON SIDEWALKMARTINEZ RODRIGUEZ$50 / $50 / $00218288630
No balance due
PAID IN FULL
2025-10-09Dos - Enforcement AgentsSIDEWALK OBSTRUCTION COMM MAN INDUSTRIAL MIXED USE 1STTK FLATBUSH FARM CORP$50 / $50 / $0049379916P
No balance due
PAID IN FULL · IN VIOLATION
2025-06-09Dos - Enforcement AgentsSTORAGE OF RECEPTACLES COM PLACED OUT PRIOR TO ONE HOUR OF CLOSINGJK FLATBUSH FARM CORP$50 / $130 / $-80049177125N

Showing 12 of 250 records. The API and the source dataset have the full list.

Source: OATH Hearings Division Case Status — city dataset updated 2026-11-02; data as of 2026-11-02

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 2026-10-28; data as of 2026-11-02; HPD Registration Contacts — city dataset updated 2026-10-28; data as of 2026-11-02

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 2026-11-02; data as of 2026-11-02

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 2026-11-02; data as of 2026-11-02

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
2026-09-17DOBBuilding/Use – No Certificate Of Occupancy/Illegal/Contrary To COAssigned2026-10-27
2026-09-09DCWPConsumer Complaint – Supermarket or Grocery StoreClosed2026-10-10
2026-09-09DCWPConsumer Complaint – Supermarket or Grocery StoreClosed2026-09-18

Source: 311 Service Requests from 2020 to Present — city dataset updated 2026-11-02; data as of 2026-11-02

Nearby properties

On Flatbush Ave

Same tax block (5164)

All properties on Flatbush Ave, Brooklyn · All of Brooklyn 11226 (East Flatbush-Erasmus)

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