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Brooklyn • Condo

340 Flatbush Ave Extension

Brooklyn, NY 11201Company-ownedBBL 3001491201BIN 3000370
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Updated Aug 1, 2026 · 16 sources

Year Built2021
Floors74
Units547
Building Area617,022 sqft
ZoningC6-4.5
ClassRM
Market Value$7.4M

340 FLATBUSH AVE EXTENSION is a property located at 340 FLATBUSH AVE EXTENSION, Brooklyn, NY 11201. It is classified as a condo - multi-dwelling. The building was constructed in 2021. It has 74 floors and 547 units. The building area is 617,022 square feet on a 46,367 sqft lot. The property is zoned C6-4.5. The assessed market value is $7.4M. It last sold for $2.7M on Jun 23, 2026. Public records list the property as company-owned. There are 217 building permits on record (207 active). There are 44 violations on record (5 currently open). 6 docketed judgments carrying $6,785 in open balances are on record with OATH. Data sourced from NYC Department of Buildings (DOB), Housing Preservation & Development (HPD), Department of Finance (DOF), and other government agencies.

A RegWatch Dossier

1,641records on file

Completed in 2021, 340 Flatbush Ave Extension rises 74 stories over Kings. Public records put it at 547 units and 617,022 square feet of floor area, on land zoned C6-4.5. It is carried on the public rolls at a market value of $7.4M, and assessed for tax at $3.3M. In the 36 years its record reaches back, the lot has drawn 1,641 separate government filings — a paper trail nearly as tall as the building itself.

The documentary life of the address leans hard toward release: 839 of its 1,641 records, fully 51%, fall under that one heading. Permit (217) and assignment (200) trail well behind. 5 violations stand open against it today.

The pace is anything but even. The early decades pass in near silence; the filings cluster heavily in recent years, peaking in 2024.

Read together — 51% release, 36 years of accumulation, a parcel of Kings — these scattered records compose a portrait of the address that no single page sets out to draw.

$7.4M of Kings, written across 1,641 government filings.

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Sources
NYC DOBNYC HPDNYC DOFACRISNYC DCPECB/OATHNYC DEPNYC LPCNYC FDNYNYS DHCRMOCEJFEMAEPAUS CensusHUDUSGS
updated

Property Details

Address340 FLATBUSH AVE EXTENSION, Brooklyn, NY 11201
Building TypeCondo - Multi-Dwelling
RM
Year Built2021
Floors74
Total Units547
Building Area617,022 sqft
Lot Size46,367 sqft
ZoningC6-4.5
ConditionGood
3001491201
3000370
OwnershipCompany-owned

Assessment & Sales

$7.4M
$3.3M
$151K
$2.7M
Last Sale DateJun 23, 2026

Building Permits

217 on record · 207 active
Construction EquipmentDOB Legacy
ISSUED
Filed Jul 1, 2026Job #321457240-01-11

EQ

View this permit's full record & inspection history →
Construction EquipmentDOB Legacy
ISSUED
Filed Jul 1, 2026Job #321495663-01-11

EQ

View this permit's full record & inspection history →
ElevatorDOB NOW
PERMIT ENTIRE
Filed Jun 22, 2026Job #B01398397-I1
View this permit's full record & inspection history →
Suspended ScaffoldDOB NOW
PERMIT ISSUED
Filed Jun 2, 2026Job #B01408245-I1

Initial Permit

View this permit's full record & inspection history →
ElectricalDOB NOW
PERMIT ISSUED
Filed May 13, 2026Job #B01401429-I1-EL

Installation of two (2) new elevators.*Job Filing #B01398397-I1

View this permit's full record & inspection history →

+ 212 more permits — view full report

Violations

44 on record · 5 open
Open judgment balance — docketed OATH judgments$6,785
Judgments · 6 docketed
DEP summons (OATH)JUDGMENT DOCKETED
Docketed Apr 30, 2026Ticket #000936725N
IDLING OF MOTOR VEHICLE ENGINE MORE THAN THREE MINUTES 1ST OFF
DEP summons (OATH)JUDGMENT DOCKETED
Docketed Jan 31, 2026Balance $2,600Ticket #000924028J
IDLING OF MOTOR VEHICLE ENGINE MORE THAN THREE MINUTES 3RD AND SUB
FDNY summons (OATH)JUDGMENT DOCKETED
Docketed Mar 31, 2025Balance $935Ticket #012155735K
FIRE PROTECTION SYSTEMS:FAIL TO PREVENT UNNECESSARY UNWARRANTED ALARMS
Sanitation summons (OATH)JUDGMENT DOCKETED
Docketed Dec 31, 2024Ticket #048442737M
IMPROPER RECEPTACLE ALL BUSINESSES 1ST
DEP summons (OATH)JUDGMENT DOCKETED
Docketed Dec 31, 2025Balance $1,300Ticket #000858941R
IDLING OF MOTOR VEHICLE ENGINE MORE THAN THREE MINUTES 1ST OFF

+ 1 more docketed judgment — view full report

ECBConstruction
ACTIVE
Issued Jul 14, 2026#39556586N

RESPONDING TO AN INCIDENT IN WHICH A WORKER SUSTAINED A BACK INJURY WHILE TRANSFERRING AN APPROX. 15' LONG STEEL BEAM FROM THE FIRST FL TO THE SECOND FL USING AN INADEQUATE MATERIAL HANDLING METHOD. THE UNSAFE

View this violation's full details & status history →
ECBConstruction
ACTIVE
Issued Jul 14, 2026#39556587P

RESPONDING TO AN INCIDENT THAT OCCURRED AT APPROXIMATELY 8:30 A.M., IN WHICH A WORKER SUSTAINED A BACK INJURY ON THE FIRST FLOOR WHILE TRANSFERRING AN APPROXIMATELY 15-FOOT-LONG STEEL BEAM TO THE SECOND FLOOR.

View this violation's full details & status history →
DOB LegacyC
ACTIVE
Issued Sep 4, 2024#2759448

BOROUGH COMMISSIONER HAS ORDERED ALL WORK STOPPED UNDER APPLICATION #320914338 DUE TO SITE SAFETY MANAGER WITHDRAWAL

View this violation's full details & status history →
DOB LegacyC
ACTIVE
Issued May 20, 2024#2752229

FAILURE TO MAINTAIN BUILDING IN CODE COMPLIANT MANNER. OBERVED AT EXPOSURE 4 BROKEN/MISSING WINDOW PANE AT LOWER ELEVATION SET BACK REMEDY: REPAIR AND/OR REPLACE

View this violation's full details & status history →
DOB LegacyElevator
ACTIVE
Issued May 20, 2019#2356035

FAILURE TO PERFORM CATEGORY 5 INSPECTION

View this violation's full details & status history →

+ 39 more violations on record — view full report

Get the Complete Report for 340 FLATBUSH AVE EXTENSION

Title history, detailed tax records, environmental data, zoning analysis, and more from 250+ government sources.

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Frequently Asked Questions

When was 340 FLATBUSH AVE EXTENSION, Brooklyn built?

The building at 340 FLATBUSH AVE EXTENSION, Brooklyn, NY 11201 was constructed in 2021. It is classified as a condo - multi-dwelling with 74 floors and 547 units. The building area is 617,022 sqft.

Are there building permits at 340 FLATBUSH AVE EXTENSION, Brooklyn?

Yes. 340 FLATBUSH AVE EXTENSION, Brooklyn, NY 11201 has 217 building permits on record, with 207 currently active. Permits are sourced from the NYC Department of Buildings (DOB Legacy and DOB NOW systems). The most recent permit is a Construction Equipment (ISSUED) filed Jul 1, 2026.

Does 340 FLATBUSH AVE EXTENSION, Brooklyn have violations?

Yes. 340 FLATBUSH AVE EXTENSION, Brooklyn, NY 11201 has 44 violations on record, with 5 currently open. Breakdown: 3 DOB, 35 ECB, 6 HPD. Sources: NYC DOB, HPD, and ECB/OATH.

Does 340 FLATBUSH AVE EXTENSION, Brooklyn have docketed judgments?

Yes. 340 FLATBUSH AVE EXTENSION, Brooklyn, NY 11201 has 6 docketed judgments on record with the NYC Office of Administrative Trials & Hearings (OATH), with an open balance of $6,785. A docketed judgment is an enforceable money judgment entered by OATH after a hearing on a summons issued at this property; where the respondent is the property owner it can attach to the property as a lien.

What is the property tax assessment for 340 FLATBUSH AVE EXTENSION?

340 FLATBUSH AVE EXTENSION, Brooklyn, NY 11201 has an assessed market value of $7.4M and a total assessed value of $3.3M (land: $151K). Assessment data is from the NYC Department of Finance (DOF).

When was 340 FLATBUSH AVE EXTENSION last sold?

340 FLATBUSH AVE EXTENSION, Brooklyn, NY 11201 last sold for $2.7M on Jun 23, 2026. Sale records are sourced from NYC ACRIS and Department of Finance rolling sales data.

What is the zoning for 340 FLATBUSH AVE EXTENSION?

340 FLATBUSH AVE EXTENSION, Brooklyn, NY 11201 is zoned C6-4.5. Zoning data is from the NYC Department of City Planning (DCP). For detailed FAR, overlays, and development rights, view the full property report on RegWatch.

Who owns 340 FLATBUSH AVE EXTENSION?

340 FLATBUSH AVE EXTENSION, Brooklyn, NY 11201 is company-owned according to public records. Ownership data is from NYC Department of Finance assessment rolls. View the current owner of record and registered contacts in the full property report on RegWatch.

How do I get a full property report for 340 FLATBUSH AVE EXTENSION?

Search 340 FLATBUSH AVE EXTENSION on RegWatch to see its public record free — violations, permits, tax records, zoning, environmental data, and more from 250+ government sources, no credit card required. A Full Analysis report adds the complete title history, owner contacts, and a downloadable PDF.

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340 FLATBUSH AVE EXTENSION, Brooklyn, NY 11201 — Property Records, Permits, Violations, Tax & Zoning | RegWatch