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Brooklyn • Office

509 5 Ave

Brooklyn, NY 11215Company-ownedBBL 3010290004BIN 3023194
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Updated Aug 1, 2026 · 16 sources

Year Built1920
Floors5
Units3
Building Area36,686 sqft
ZoningC4-3A
ClassO5
Market Value$7.7M

509 5 AVE is a property located at 509 5 AVE, Brooklyn, NY 11215. It is classified as a office - non-combustible. The building was constructed in 1920. It has 5 floors and 3 units. The building area is 36,686 square feet on a 7,341 sqft lot. The property is zoned C4-3A. The assessed market value is $7.7M. Public records list the property as company-owned. There are 121 building permits on record (94 active). There are 109 violations on record (4 currently open). 12 docketed judgments carrying $2,250 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

368records on file
48Energy Star

Completed in 1920, 509 5 Ave rises 5 stories over Kings. Public records put it at 3 units and 36,686 square feet of floor area, on land zoned C4-3A. It is carried on the public rolls at a market value of $7.7M, and assessed for tax at $3.5M. In the 43 years its record reaches back, the lot has drawn 368 separate government filings.

The documentary life of the address leans hard toward permit: 121 of its 368 records, fully 33%, fall under that one heading. Violation (109) and enforcement (51) trail well behind. 4 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 2013.

On the environmental ledger, the building posts an Energy Star score of 48, with a site energy-use intensity of 95.2 kBtu per square foot. Its operations answer for roughly 444 metric tons of CO2-equivalent a year.

Read together — 33% permit, 43 years of accumulation, a parcel of Kings — these scattered records compose a portrait of the address that no single page sets out to draw.

$7.7M of Kings, written across 368 government filings.

Open the live report — daily-updated data, AI chat & alerts
Sources
NYC DOBNYC HPDNYC DOFACRISNYC DCPECB/OATHNYC DEPNYC LPCNYC FDNYNYS DHCRMOCEJFEMAEPAUS CensusHUDUSGS
updated

Property Details

Address509 5 AVE, Brooklyn, NY 11215
Building TypeOffice - Non-Combustible
O5
Year Built1920
Floors5
Total Units3
Building Area36,686 sqft
Lot Size7,341 sqft
ZoningC4-3A
3010290004
3023194
OwnershipCompany-owned

Assessment & Sales

$7.7M
$3.5M
$315K

Building Permits

121 on record · 94 active
Cats RegistrationOther
CURRENT
Filed Aug 9, 2024Job #438760
View this permit's full record & inspection history →
General ConstructionDOB NOW
LOC ISSUED
Filed Oct 21, 2021Est. cost $12KJob #B00532468-I1
View this permit's full record & inspection history →
AntennaDOB NOW
SIGNED-OFF
Filed Sep 16, 2021Est. cost $12KJob #B00532468-I1

Initial Permit

View this permit's full record & inspection history →
Alteration — Type 2DOB Legacy
SIGNED OFF
Filed Jun 17, 2021Est. cost $60KJob #340797686-01

GEN. CONSTR.

View this permit's full record & inspection history →
ElectricalDOB NOW
PERMIT ISSUED
Filed Mar 3, 2021Job #B00479384-I1-EL

NEW BRANCH WIRING

View this permit's full record & inspection history →

+ 116 more permits — view full report

Violations

109 on record · 4 open
Open judgment balance — docketed OATH judgments$2,250
Judgments · 12 docketed
Sanitation summons (OATH)JUDGMENT DOCKETED
Docketed Jun 30, 2025Balance $300Ticket #048785960J
STORAGE OF RECEPTACLES PLACED OUT PRIOR TO 8PM WITHOUT A RECEPTACLE
DEP summons (OATH)JUDGMENT DOCKETED
Docketed Mar 31, 2026Ticket #000882791K
IDLING OF MOTOR VEHICLE ENGINE MORE THAN THREE MINUTES 3RD AND SUB
DEP summons (OATH)JUDGMENT DOCKETED
Docketed Jun 12, 2026Balance $1,950Ticket #000963335L
IDLING OF MOTOR VEHICLE ENGINE MORE THAN THREE MINUTES 2ND OFF
FDNY summons (OATH)JUDGMENT DOCKETED
Docketed Mar 31, 2024Ticket #014079237Z
RECORDKEEPING
Sanitation summons (OATH)JUDGMENT DOCKETED
Docketed Aug 31, 2018Ticket #041446268M
STORAGE OF RECEPTACLES

+ 7 more docketed judgments — view full report

DOB LegacyLBLVIO
ACTIVE
Issued Nov 14, 2025#2804473

VIOLATION ISSUED-FAILURE TO FILE 2024 EXTERNAL LOW PRESSURE INSPECTION

View this violation's full details & status history →
DOB LegacyLBLVIO
ACTIVE
Issued Nov 14, 2025#2804474

VIOLATION ISSUED-FAILURE TO FILE 2024 EXTERNAL LOW PRESSURE INSPECTION

View this violation's full details & status history →

+ 107 more violations on record — view full report

Get the Complete Report for 509 5 AVE

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

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Frequently Asked Questions

When was 509 5 AVE, Brooklyn built?

The building at 509 5 AVE, Brooklyn, NY 11215 was constructed in 1920. It is classified as a office - non-combustible with 5 floors and 3 units. The building area is 36,686 sqft.

Are there building permits at 509 5 AVE, Brooklyn?

Yes. 509 5 AVE, Brooklyn, NY 11215 has 121 building permits on record, with 94 currently active. Permits are sourced from the NYC Department of Buildings (DOB Legacy and DOB NOW systems). The most recent permit is a Cats Registration (CURRENT) filed Aug 9, 2024.

Does 509 5 AVE, Brooklyn have violations?

Yes. 509 5 AVE, Brooklyn, NY 11215 has 109 violations on record, with 4 currently open. Breakdown: 79 DOB, 30 ECB. Sources: NYC DOB, HPD, and ECB/OATH.

Does 509 5 AVE, Brooklyn have docketed judgments?

Yes. 509 5 AVE, Brooklyn, NY 11215 has 12 docketed judgments on record with the NYC Office of Administrative Trials & Hearings (OATH), with an open balance of $2,250. 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 509 5 AVE?

509 5 AVE, Brooklyn, NY 11215 has an assessed market value of $7.7M and a total assessed value of $3.5M (land: $315K). Assessment data is from the NYC Department of Finance (DOF).

What is the zoning for 509 5 AVE?

509 5 AVE, Brooklyn, NY 11215 is zoned C4-3A. 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 509 5 AVE?

509 5 AVE, Brooklyn, NY 11215 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 509 5 AVE?

Search 509 5 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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509 5 AVE, Brooklyn, NY 11215 — Property Records, Permits, Violations, Tax & Zoning | RegWatch