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Brooklyn • Elevator Apartment

100 Dupont St

Brooklyn, NY 11222Individually ownedBBL 3024950030BIN 3063815
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16 sources

Year Built1919
Floors4
Units48
Building Area39,480 sqft
ZoningR6B
ClassD5
Market Value$9.7M

100 DUPONT ST is a property located at 100 DUPONT ST, Brooklyn, NY 11222. It is classified as a elevator apartment - converted. The building was constructed in 1919. It has 4 floors and 48 units. The building area is 39,480 square feet on a 20,000 sqft lot. The property is zoned R6B. The assessed market value is $9.7M. Public records list the property as individually owned. There are 45 building permits on record (38 active). There are 86 violations on record (36 currently open). 9 docketed judgments carrying $75 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

326records on file
66Energy Star

Completed in 1919, 100 Dupont St rises 4 stories over Kings. Public records put it at 48 units and 39,480 square feet of floor area, on land zoned R6B. It is carried on the public rolls at a market value of $9.7M, and assessed for tax at $4.4M. In the 60 years its record reaches back, the lot has drawn 326 separate government filings.

The documentary life of the address leans hard toward complaint: 131 of its 326 records, fully 40%, fall under that one heading. Violation (86) and permit (45) trail well behind. 36 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 2026.

On the environmental ledger, the building posts an Energy Star score of 66, with a site energy-use intensity of 41.5 kBtu per square foot. Its operations answer for roughly 197 metric tons of CO2-equivalent a year.

Read together — 40% complaint, 60 years of accumulation, a parcel of Kings — these scattered records compose a portrait of the address that no single page sets out to draw.

$9.7M of Kings, written across 326 government filings.

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Executive summary, compliance history, title chain & existing debt, recorded documents & agreements, owner contacts, tax detail, Use & Development, build envelope, market comps, investment metrics, deal math & stress tests, deal signals, pre-foreclosure signals, neighborhood. Downloadable PDF. One payment, no subscription.

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

Address100 DUPONT ST, Brooklyn, NY 11222
Building TypeElevator Apartment - Converted
D5
Year Built1919
Floors4
Total Units48
Building Area39,480 sqft
Lot Size20,000 sqft
ZoningR6B
ConditionAverage
3024950030
3063815
OwnershipIndividually owned

Assessment & Sales

$9.7M
$4.4M
$225K

Building Permits

45 on record · 38 active
ElevatorDOB NOW
SIGNED OFF
Filed Sep 8, 2025Job #B01282187-I1
View this permit's full record & inspection history →
Alteration — Type 1DOB Legacy
SIGNED OFF
Filed Jul 2, 2013Est. cost $2.9MJob #320282868-01

GEN. CONSTR

View this permit's full record & inspection history →
Alteration — Type 1DOB Legacy
SIGNED OFF
Filed Jul 2, 2013Job #320282868-03
View this permit's full record & inspection history →
Alteration — Type 1DOB Legacy
SIGNED OFF
Filed Jul 2, 2013Job #320282868-02

STRUCTURAL

View this permit's full record & inspection history →
PlumbingDOB Legacy
ISSUED
Filed Jun 18, 2013Job #320451499-02-02

PL

View this permit's full record & inspection history →

+ 40 more permits — view full report

Violations

86 on record · 36 open
Open judgment balance — docketed OATH judgments$75
Judgments · 9 docketed
Sanitation summons (OATH)JUDGMENT DOCKETED
Docketed Feb 28, 2023Balance $75Ticket #047636012Y
ILLEGAL POSTING OF HANDBILL NOTICE
DOB summons (OATH)JUDGMENT DOCKETED
Docketed Mar 31, 2021Ticket #039023100M
FAILURE TO MAINTAIN ELEVATOR OR CONVEYING SYSTEM
Sanitation summons (OATH)JUDGMENT DOCKETED
Docketed Jan 31, 2019Ticket #044604126R
IMPROPER DISPOSAL BEDDING 1ST OFFENSE
FDNY summons (OATH)JUDGMENT DOCKETED
Docketed Nov 30, 2015Ticket #012044611R
FIRE PROTECTION SYSTEMS:FAIL TO PREVENT UNNECESSARY UNWARRANTED ALARMS
Sanitation summons (OATH)JUDGMENT DOCKETED
Docketed Oct 31, 2015Ticket #042177028R
STORAGE OF RECEPTACLES

+ 4 more docketed judgments — view full report

HPDClass A
NOTICE OF ISSUANCE SENT TO TENANT
Issued Oct 21, 2026#19315176

§ 27-2017.3 HMC: TRACE AND REPAIR THE SOURCE AND ABATE THE VISIBLE MOLD CONDITION... LESS THAN 10 SQ.FT OBSERVED AT CEILING IN THE BATHROOM LOCATED AT APT 1J, 1st STORY, 1st APARTMENT FROM WEST AT NORTH

View this violation's full details & status history →
HPDClass B
NOV SENT OUT
Issued Oct 21, 2026#19315177

§ 27-2005 HMC: PROPERLY REPAIR OR REPLACE THE BROKEN OR DEFECTIVE MECHANICAL VENTILATION SYSTEM AT SOUTH WALL IN THE BATHROOM LOCATED AT APT 1J, 1st STORY, 1st APARTMENT FROM WEST AT NORTH

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HPDClass B
NOV SENT OUT
Issued Oct 21, 2026#19315178

§ 27-2045(B)(1)(B) HMC, § 12-06, § 12-07, § 12-09 RCNY REPAIR, REPLACE OR PROVIDE AN APPROVED AND OPERATIONAL CARBON MONOXIDE DETECTING DEVICE, INSTALLED IN ACCORDANCE WITH APPLICABLE LAW AND RULES MISSING IN THE ENTIRE APARTMENT LOCATED AT APT 1J, 1st STORY, 1st APARTMENT FROM WEST AT NORTH

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HPDClass B
NOV SENT OUT
Issued Oct 21, 2026#19315179

§ 27-2045(B)(1)(A) HMC, § 12-01, § 12-03 RCNY REPAIR, REPLACE OR PROVIDE AN APPROVED AND OPERATIONAL SMOKE DETECTING DEVICE, INSTALLED IN ACCORDANCE WITH DEPARTMENT OF BUILDINGS RULES AND REGULATIONS MISSING IN THE ENTIRE APARTMENT LOCATED AT APT 1J, 1st STORY, 1st APARTMENT FROM WEST AT NORTH

View this violation's full details & status history →
HPDClass A
NOV SENT OUT
Issued Oct 21, 2026#19315180

§ 27-2017.3 HMC: TRACE AND REPAIR THE SOURCE AND ABATE THE VISIBLE MOLD CONDITION... LESS THAN 30 SQ.FT OBSERVED AT CEILING AT PUBLIC HALL STAIRS, 3rd STORY

View this violation's full details & status history →

+ 81 more violations on record — view full report

Get the Complete Report for 100 DUPONT ST

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

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Frequently Asked Questions

When was 100 DUPONT ST, Brooklyn built?

The building at 100 DUPONT ST, Brooklyn, NY 11222 was constructed in 1919. It is classified as a elevator apartment - converted with 4 floors and 48 units. The building area is 39,480 sqft.

Are there building permits at 100 DUPONT ST, Brooklyn?

Yes. 100 DUPONT ST, Brooklyn, NY 11222 has 45 building permits on record, with 38 currently active. Permits are sourced from the NYC Department of Buildings (DOB Legacy and DOB NOW systems). The most recent permit is a Elevator (SIGNED OFF) filed Sep 8, 2025.

Does 100 DUPONT ST, Brooklyn have violations?

Yes. 100 DUPONT ST, Brooklyn, NY 11222 has 86 violations on record, with 36 currently open. Breakdown: 3 DOB Safety, 15 DOB, 8 ECB, 60 HPD. Sources: NYC DOB, HPD, and ECB/OATH.

Does 100 DUPONT ST, Brooklyn have docketed judgments?

Yes. 100 DUPONT ST, Brooklyn, NY 11222 has 9 docketed judgments on record with the NYC Office of Administrative Trials & Hearings (OATH), with an open balance of $75. 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 100 DUPONT ST?

100 DUPONT ST, Brooklyn, NY 11222 has an assessed market value of $9.7M and a total assessed value of $4.4M (land: $225K). Assessment data is from the NYC Department of Finance (DOF).

What is the zoning for 100 DUPONT ST?

100 DUPONT ST, Brooklyn, NY 11222 is zoned R6B. 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 100 DUPONT ST?

100 DUPONT ST, Brooklyn, NY 11222 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 100 DUPONT ST?

Search 100 DUPONT ST 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 ($15, one-time) adds the complete title history, owner contacts, and a downloadable PDF.

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100 DUPONT ST, Brooklyn, NY 11222 — Property Records, Permits, Violations, Tax & Zoning | RegWatch