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Brooklyn

12399 Flatlands Ave

Brooklyn, NY 11207Individually ownedBBL 3044231281BIN 3324270
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Updated Aug 1, 2026 · 16 sources

Floors9
ClassR4
Market Value$37K

12399 FLATLANDS AVE is a property located at 12399 FLATLANDS AVE, Brooklyn, NY 11207. The building has 9 floors. The assessed market value is $37K. It last sold for $375K on Apr 7, 2026. Public records list the property as individually owned. There are 55 building permits on record (34 active). There are 182 violations on record (1 currently open). 21 docketed judgments carrying $1,000 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

2,798records on file

The lot at 12399 Flatlands Ave rises 9 stories over Kings. It is carried on the public rolls at a market value of $36.6K, and assessed for tax at $16.5K. In the 38 years its record reaches back, the lot has drawn 2,798 separate government filings — a paper trail nearly as tall as the building itself.

The documentary life of the address leans hard toward complaint: 716 of its 2,798 records, fully 26%, fall under that one heading. Release (464) and mortgage (429) trail well behind. 1 violation stands open against it today.

The pace is anything but even. Activity is spread across the decades, with 2006 the busiest year on file.

On the environmental ledger, the building is benchmarked under Local Law 84, with a site energy-use intensity of 6702500.0 kBtu per square foot. Its operations answer for roughly 356 metric tons of CO2-equivalent a year.

Read together — 26% complaint, 38 years of accumulation, a parcel of Kings — these scattered records compose a portrait of the address that no single page sets out to draw.

$36.6K of Kings, written across 2,798 government filings.

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

Property Details

Address12399 FLATLANDS AVE, Brooklyn, NY 11207
R4
Year BuiltN/A
Floors9
Total UnitsN/A
Building AreaN/A
Lot SizeN/A
3044231281
3324270
OwnershipIndividually owned

Assessment & Sales

$37K
$16K
$5K
$375K
Last Sale DateApr 7, 2026

Building Permits

55 on record · 34 active
Alteration — Type 2DOB Legacy
SIGNED OFF
Filed Aug 30, 2023Est. cost $18KJob #321806373-01
View this permit's full record & inspection history →
General ConstructionDOB NOW
LOC ISSUED
Filed Aug 15, 2023Est. cost $15KJob #B00627434-I1
View this permit's full record & inspection history →
AntennaDOB NOW
SIGNED-OFF
Filed Mar 18, 2022Est. cost $15KJob #B00627434-I1

Initial Permit

View this permit's full record & inspection history →
General ConstructionDOB NOW
LOC ISSUED
Filed Dec 28, 2020Est. cost $26KJob #B00003032-I1
View this permit's full record & inspection history →
General ConstructionDOB NOW
LOC ISSUED
Filed Dec 27, 2020Est. cost $10KJob #B00211841-I1
View this permit's full record & inspection history →

+ 50 more permits — view full report

Violations

182 on record · 1 open
Open judgment balance — docketed OATH judgments$1,000
Judgments · 21 docketed
DOB summons (OATH)JUDGMENT DOCKETED
Docketed May 31, 2023Ticket #039074836P
FAILURE TO MAINTAIN ELEVATOR OR CONVEYING SYSTEM
FDNY summons (OATH)JUDGMENT DOCKETED
Docketed Jan 31, 2023Ticket #011833120H
PERMITS
FDNY summons (OATH)JUDGMENT DOCKETED
Docketed May 31, 2022Ticket #011784057X
PERMITS
Sanitation summons (OATH)JUDGMENT DOCKETED
Docketed Mar 31, 2021Balance $1,000Ticket #045482883H
ABANDONING VEHICLE
FDNY summons (OATH)JUDGMENT DOCKETED
Docketed Jun 30, 2020Ticket #011720561M
INSPECTION AND TESTING

+ 16 more docketed judgments — view full report

ECBElevator
RESOLVE
Issued Jan 14, 2026#39173916Z

1)IN-CAR COMMUNICATION INOPERABLE. 2)CLEANING OF ELEVATOR PIT. 3)TOP OF CAR ROLLER GUIDES RUBBING ON RAIL. 4)PROVIDE ACCESS TO MR FOR PROPER INSPECTION.

View this violation's full details & status history →
HPDClass B
VIOLATION DISMISSED
Issued Dec 27, 2025#18532735

§ 27-2005 ADM CODE REPAIR THE BROKEN OR DEFECTIVE PLASTERED SURFACES AND PAINT IN A UNIFORM COLOR AT CEILING AT CLOSET IN THE 3rd ROOM FROM EAST LOCATED AT APT 9H, 9th STORY, 1st APARTMENT FROM NORTH AT EAST

View this violation's full details & status history →
HPDClass C
VIOLATION CLOSED
Issued Dec 27, 2025#18532736

§ 27-2005, 27-2007, 27-2041.1 HMC, §238, § 309; § 107 (2) ( C) MDL AND 28 RCNY §25-171: REPLACE OR REPAIR THE SELF-CLOSING DOORS THAT IS MISSING OR DEFECTIVE DOOR FRAME IN THE ENTRANCE LOCATED AT APT 9H, 9th STORY, 1st APARTMENT FROM NORTH AT EAST

View this violation's full details & status history →
HPDClass B
VIOLATION DISMISSED
Issued Dec 27, 2025#18532734

§ 27-2005 ADM CODE REPAIR THE ROOF SO THAT IT WILL NOT LEAK OVER CEILING AT CLOSET IN THE 1st ROOM FROM EAST LOCATED AT APT 9H, 9th STORY, 1st APARTMENT FROM NORTH AT EAST

View this violation's full details & status history →
HPDClass C
VIOLATION CLOSED
Issued Dec 23, 2025#18535682

§ 27-2005, 27-2007, 27-2041.1 HMC, §238, § 309; § 107 (2) ( C) MDL AND 28 RCNY §25-171: REPLACE OR REPAIR THE SELF-CLOSING DOORS THAT IS MISSING OR DEFECTIVE HINGES AT DOOR IN THE ENTRANCE LOCATED AT APT 5H, 5th STORY, 1st APARTMENT FROM NORTH AT EAST

View this violation's full details & status history →

+ 177 more violations on record — view full report

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

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Frequently Asked Questions

Are there building permits at 12399 FLATLANDS AVE, Brooklyn?

Yes. 12399 FLATLANDS AVE, Brooklyn, NY 11207 has 55 building permits on record, with 34 currently active. Permits are sourced from the NYC Department of Buildings (DOB Legacy and DOB NOW systems). The most recent permit is a Alteration — Type 2 (SIGNED OFF) filed Aug 30, 2023.

Does 12399 FLATLANDS AVE, Brooklyn have violations?

Yes. 12399 FLATLANDS AVE, Brooklyn, NY 11207 has 182 violations on record, with 1 currently open. Breakdown: 43 DOB, 46 ECB, 93 HPD. Sources: NYC DOB, HPD, and ECB/OATH.

Does 12399 FLATLANDS AVE, Brooklyn have docketed judgments?

Yes. 12399 FLATLANDS AVE, Brooklyn, NY 11207 has 21 docketed judgments on record with the NYC Office of Administrative Trials & Hearings (OATH), with an open balance of $1,000. 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 12399 FLATLANDS AVE?

12399 FLATLANDS AVE, Brooklyn, NY 11207 has an assessed market value of $37K and a total assessed value of $16K (land: $5K). Assessment data is from the NYC Department of Finance (DOF).

When was 12399 FLATLANDS AVE last sold?

12399 FLATLANDS AVE, Brooklyn, NY 11207 last sold for $375K on Apr 7, 2026. Sale records are sourced from NYC ACRIS and Department of Finance rolling sales data.

Who owns 12399 FLATLANDS AVE?

12399 FLATLANDS AVE, Brooklyn, NY 11207 is individually 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 12399 FLATLANDS AVE?

Search 12399 FLATLANDS AVE 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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12399 FLATLANDS AVE, Brooklyn, NY 11207 — Property Records, Permits, Violations, Tax & Zoning | RegWatch