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Brooklyn • Elevator Apartment

1720 East 21 St

Brooklyn, NY 11229Company-ownedBBL 3067830010BIN 3182551
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Updated Aug 1, 2026 · 16 sources

Year Built1935
Floors6
Units48
Building Area51,000 sqft
ZoningR7A
ClassD4
Market Value$3.7M

1720 EAST 21 ST is a property located at 1720 EAST 21 ST, Brooklyn, NY 11229. It is classified as a elevator apartment - cooperative. The building was constructed in 1935. It has 6 floors and 48 units. The building area is 51,000 square feet on a 10,600 sqft lot. The property is zoned R7A. The assessed market value is $3.7M. Public records list the property as company-owned. There are 15 building permits on record (12 active). There are 72 violations on record (17 currently open). 6 docketed judgments carrying $4,800 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

209records on file
76Energy Star

Completed in 1935, 1720 East 21 St rises 6 stories over Kings. Public records put it at 48 units and 51,000 square feet of floor area, on land zoned R7A. It is carried on the public rolls at a market value of $3.7M, and assessed for tax at $1.7M. In the 57 years its record reaches back, the lot has drawn 209 separate government filings.

The documentary life of the address leans hard toward violation: 72 of its 209 records, fully 34%, fall under that one heading. Complaint (49) and assignment (26) trail well behind. 17 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 2004.

On the environmental ledger, the building posts an Energy Star score of 76, with a site energy-use intensity of 68.6 kBtu per square foot. Its operations answer for roughly 234 metric tons of CO2-equivalent a year.

Read together — 34% violation, 57 years of accumulation, a parcel of Kings — these scattered records compose a portrait of the address that no single page sets out to draw.

$3.7M of Kings, written across 209 government filings.

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

Property Details

Address1720 EAST 21 ST, Brooklyn, NY 11229
Building TypeElevator Apartment - Cooperative
D4
Year Built1935
Floors6
Total Units48
Building Area51,000 sqft
Lot Size10,600 sqft
ZoningR7A
ConditionAverage
3067830010
3182551
OwnershipCompany-owned

Assessment & Sales

$3.7M
$1.7M
$167K

Building Permits

15 on record · 12 active
Cats Registration InspectionOther
CURRENT
Filed Feb 21, 2025Job #437396
View this permit's full record & inspection history →
Construction EquipmentDOB Legacy
ISSUED
Filed Aug 27, 2014Job #340178275-01-01

OT

View this permit's full record & inspection history →
Alteration — Type 2DOB Legacy
PERMIT ISSUED - ENTIRE JOB/WORK
Filed Aug 27, 2014Est. cost $15KJob #340178275-01

FACADE

View this permit's full record & inspection history →
Construction EquipmentDOB Legacy
ISSUED
Filed Jul 18, 2014Job #340164271-01-01

EQ

View this permit's full record & inspection history →
Alteration — Type 3DOB Legacy
PERMIT ISSUED - ENTIRE JOB/WORK
Filed Jul 18, 2014Job #340164271-01
View this permit's full record & inspection history →

+ 10 more permits — view full report

Violations

72 on record · 17 open
Open judgment balance — docketed OATH judgments$4,800
Judgments · 6 docketed
FDNY summons (OATH)JUDGMENT DOCKETED
Docketed Mar 31, 2021Ticket #011734243Y
RECORDKEEPING
FDNY summons (OATH)JUDGMENT DOCKETED
Docketed Sep 30, 2018Ticket #011616109X
RECORDKEEPING
DOB summons (OATH)JUDGMENT DOCKETED
Docketed Jun 30, 2018Balance $4,800Ticket #035256401H
FILED CERT FORM APPLICATION ETC CONTAINING A MATERIAL FALSE STATEMENTS
Sanitation summons (OATH)JUDGMENT DOCKETED
Docketed Sep 30, 2015Ticket #041419163M
IMPROPER MISUSED CURBSIDE RECYCLING CONTAINER 9+ DWELLING UNITS
Sanitation summons (OATH)JUDGMENT DOCKETED
Docketed Mar 31, 2015Ticket #041538077H
DIRTY SIDEWALK DIRTY AREA

+ 1 more docketed judgment — view full report

HPDClass B
NOV SENT OUT
Issued Jun 20, 2026#19020493

§ 27-2026, 2027 HMC: PROPERLY REPAIR THE SOURCE AND ABATE THE EVIDENCE OF A WATER LEAK AT CEILING IN THE 4th ROOM FROM EAST LOCATED AT APT 4E, 4th STORY, 1st APARTMENT FROM WEST AT NORTH

View this violation's full details & status history →
HPDClass B
NOV SENT OUT
Issued Jun 20, 2026#19020494

§ 27-2005 ADM CODE REPAIR THE BROKEN OR DEFECTIVE PLASTERED SURFACES AND PAINT IN A UNIFORM COLOR THE CEILING IN THE 4th ROOM FROM EAST LOCATED AT APT 4E, 4th STORY, 1st APARTMENT FROM WEST AT NORTH

View this violation's full details & status history →
HPDClass B
NOV SENT OUT
Issued Jun 20, 2026#19020495

§ 27-2026, 2027 HMC: PROPERLY REPAIR THE SOURCE AND ABATE THE EVIDENCE OF A WATER LEAK AT CEILING AT CLOSET IN THE BATHROOM LOCATED AT APT 4E, 4th STORY, 1st APARTMENT FROM WEST AT NORTH

View this violation's full details & status history →
HPDClass A
NOV SENT OUT
Issued Jun 20, 2026#19020496

§ 27-2013 ADM CODE PAINT WITH LIGHT COLORED PAINT TO THE SATISFACTION OF THIS DEPARTMENT THE CEILING AND ALL WALLS IN THE BATHROOM LOCATED AT APT 4E, 4th STORY, 1st APARTMENT FROM WEST AT NORTH

View this violation's full details & status history →
HPDClass B
NOV SENT OUT
Issued Jun 20, 2026#19020497

§ 27-2026, 2027 HMC: PROPERLY REPAIR THE SOURCE AND ABATE THE EVIDENCE OF A WATER LEAK AT CEILING IN THE 1st ROOM FROM EAST AT NORTH LOCATED AT APT 4E, 4th STORY, 1st APARTMENT FROM WEST AT NORTH

View this violation's full details & status history →

+ 67 more violations on record — view full report

Get the Complete Report for 1720 EAST 21 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 1720 EAST 21 ST, Brooklyn built?

The building at 1720 EAST 21 ST, Brooklyn, NY 11229 was constructed in 1935. It is classified as a elevator apartment - cooperative with 6 floors and 48 units. The building area is 51,000 sqft.

Are there building permits at 1720 EAST 21 ST, Brooklyn?

Yes. 1720 EAST 21 ST, Brooklyn, NY 11229 has 15 building permits on record, with 12 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 Inspection (CURRENT) filed Feb 21, 2025.

Does 1720 EAST 21 ST, Brooklyn have violations?

Yes. 1720 EAST 21 ST, Brooklyn, NY 11229 has 72 violations on record, with 17 currently open. Breakdown: 23 DOB, 8 ECB, 41 HPD. Sources: NYC DOB, HPD, and ECB/OATH.

Does 1720 EAST 21 ST, Brooklyn have docketed judgments?

Yes. 1720 EAST 21 ST, Brooklyn, NY 11229 has 6 docketed judgments on record with the NYC Office of Administrative Trials & Hearings (OATH), with an open balance of $4,800. 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 1720 EAST 21 ST?

1720 EAST 21 ST, Brooklyn, NY 11229 has an assessed market value of $3.7M and a total assessed value of $1.7M (land: $167K). Assessment data is from the NYC Department of Finance (DOF).

What is the zoning for 1720 EAST 21 ST?

1720 EAST 21 ST, Brooklyn, NY 11229 is zoned R7A. 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 1720 EAST 21 ST?

1720 EAST 21 ST, Brooklyn, NY 11229 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 1720 EAST 21 ST?

Search 1720 EAST 21 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 adds the complete title history, owner contacts, and a downloadable PDF.

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1720 EAST 21 ST, Brooklyn, NY 11229 — Property Records, Permits, Violations, Tax & Zoning | RegWatch