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Brooklyn • Elevator Apartment

312 East 21 St

Brooklyn, NY 11226Company-ownedBBL 3051240012BIN 3117622
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16 sources

Year Built1940
Floors6
Units54
Building Area55,426 sqft
ZoningR7A
ClassD1
Market Value$3.3M

312 EAST 21 ST is a property located at 312 EAST 21 ST, Brooklyn, NY 11226. It is classified as a elevator apartment - semi-fireproof. The building was constructed in 1940. It has 6 floors and 54 units. The building area is 55,426 square feet on a 12,758 sqft lot. The property is zoned R7A. The assessed market value is $3.3M. It last sold for $8M on Jul 19, 2019. Public records list the property as company-owned. There are 10 building permits on record (4 active). There are 514 violations on record (83 currently open). 21 docketed judgments carrying $2,350 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

1,521records on file
65Energy Star

Completed in 1940, 312 East 21 St rises 6 stories over Kings. Public records put it at 54 units and 55,426 square feet of floor area, on land zoned R7A. It is carried on the public rolls at a market value of $3.3M, and assessed for tax at $1.5M. In the 60 years its record reaches back, the lot has drawn 1,521 separate government filings — a paper trail nearly as tall as the building itself.

The documentary life of the address leans hard toward complaint: 846 of its 1,521 records, fully 56%, fall under that one heading. Violation (514) and inspection (32) trail well behind. 83 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 65, with a site energy-use intensity of 69.6 kBtu per square foot. Its operations answer for roughly 269 metric tons of CO2-equivalent a year.

Read together — 56% 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.

$3.3M of Kings, written across 1,521 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

Address312 EAST 21 ST, Brooklyn, NY 11226
Building TypeElevator Apartment - Semi-Fireproof
D1
Year Built1940
Floors6
Total Units54
Building Area55,426 sqft
Lot Size12,758 sqft
ZoningR7A
ConditionAverage
3051240012
3117622
OwnershipCompany-owned

Assessment & Sales

$3.3M
$1.5M
$112K
$8M
Last Sale DateJul 19, 2019

Building Permits

10 on record · 4 active
ElevatorDOB NOW
PERMIT ENTIRE
Filed Sep 14, 2026Job #B01297166-I1
View this permit's full record & inspection history →
Cats Registration InspectionOther
CURRENT
Filed Jul 29, 2025Job #463655
View this permit's full record & inspection history →
ElectricalDOB NOW
PERMIT ISSUED
Filed Oct 31, 2022Job #B08031451-I1-EL

ELEVATOR ID# 3P3258 7STOPS. THIS PERMIT COVER ELEVATOR CONTROL AND LOAD-SIDE WIRING ONLY

View this permit's full record & inspection history →
ElevatorDOB NOW
SIGNED OFF
Filed Oct 27, 2020Job #B00419922-I1
View this permit's full record & inspection history →
Alteration — Type 2DOB Legacy
SIGNED OFF
Filed Aug 7, 2013Est. cost $10KJob #340034386-01
View this permit's full record & inspection history →

+ 5 more permits — view full report

Violations

514 on record · 83 open
Open judgment balance — docketed OATH judgments$2,350
Judgments · 21 docketed
Sanitation summons (OATH)JUDGMENT DOCKETED
Docketed Sep 18, 2026Balance $100Ticket #049737121Z
FAIL TO RECYCLE ORGANIC WASTE 9 OR MORE DWELLING UNITS 1ST
Sanitation summons (OATH)JUDGMENT DOCKETED
Docketed Jan 31, 2025Balance $1,000Ticket #048451122K
ABANDONING VEHICLE
DOB summons (OATH)JUDGMENT DOCKETED
Docketed Jun 30, 2025Balance $1,250Ticket #039100001N
FAILURE TO MAINTAIN ELEVATOR OR CONVEYING SYSTEM
Sanitation summons (OATH)JUDGMENT DOCKETED
Docketed Oct 31, 2018Ticket #0203878685
FAILURE TO CLEAN 18 INCHES INTO STREET
Sanitation summons (OATH)JUDGMENT DOCKETED
Docketed Dec 31, 2015Ticket #0186220320
LOOSE RUBBISH

+ 16 more docketed judgments — view full report

HPDClass C
NOV CERTIFIED ON TIME
Issued Sep 20, 2026#19232013

§ 27-2005 HMC: PROPERLY REPAIR OR REPLACE THE BROKEN OR DEFECTIVE GLASS CREATING CUT HAZARD AT INTERCOM SYSTEM AT BUILDING FRONT

View this violation's full details & status history →
HPDClass B
NOV CERTIFIED ON TIME
Issued Sep 20, 2026#19232014

§ 27-2005 ADM CODE PROPERLY REPAIR WITH SIMILAR MATERIAL THE BROKEN OR DEFECTIVE TERRAZZO STOOL AT 2ND WINDOW FROM NORTH AT EAST AT PUBLIC HALL, 1st STORY

View this violation's full details & status history →
HPDClass B
NOV CERTIFIED ON TIME
Issued Sep 20, 2026#19232015

§ 27-2026, 2027 HMC: PROPERLY REPAIR THE SOURCE AND ABATE THE EVIDENCE OF A WATER LEAK AT WINDOW RECESS AT 1ST WINDOW FROM NORTH AT EAST AT PUBLIC HALL, 1st STORY

View this violation's full details & status history →
HPDClass B
NOV CERTIFIED ON TIME
Issued Sep 20, 2026#19232016

§ 27-2005 ADM CODE PROPERLY REPAIR WITH SIMILAR MATERIAL THE BROKEN OR DEFECTIVE FIRE RETARDANT MATERIAL AT WINDOW RECESS AT 1ST WINDOW FROM NORTH AT EAST AT PUBLIC HALL, 1st STORY

View this violation's full details & status history →
HPDClass A
NOV CERTIFIED ON TIME
Issued Sep 20, 2026#19232017

§ 27-2013 ADM CODE PAINT WITH LIGHT COLORED PAINT TO THE SATISFACTION OF THIS DEPARTMENT THE WINDOW RECESS AT 1ST WINDOW FROM NORTH AT EAST AT PUBLIC HALL, 1st STORY

View this violation's full details & status history →

+ 509 more violations on record — view full report

Get the Complete Report for 312 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 312 EAST 21 ST, Brooklyn built?

The building at 312 EAST 21 ST, Brooklyn, NY 11226 was constructed in 1940. It is classified as a elevator apartment - semi-fireproof with 6 floors and 54 units. The building area is 55,426 sqft.

Are there building permits at 312 EAST 21 ST, Brooklyn?

Yes. 312 EAST 21 ST, Brooklyn, NY 11226 has 10 building permits on record, with 4 currently active. Permits are sourced from the NYC Department of Buildings (DOB Legacy and DOB NOW systems). The most recent permit is a Elevator (PERMIT ENTIRE) filed Sep 14, 2026.

Does 312 EAST 21 ST, Brooklyn have violations?

Yes. 312 EAST 21 ST, Brooklyn, NY 11226 has 514 violations on record, with 83 currently open. Breakdown: 1 DOB Safety, 26 DOB, 12 ECB, 475 HPD. Sources: NYC DOB, HPD, and ECB/OATH.

Does 312 EAST 21 ST, Brooklyn have docketed judgments?

Yes. 312 EAST 21 ST, Brooklyn, NY 11226 has 21 docketed judgments on record with the NYC Office of Administrative Trials & Hearings (OATH), with an open balance of $2,350. 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 312 EAST 21 ST?

312 EAST 21 ST, Brooklyn, NY 11226 has an assessed market value of $3.3M and a total assessed value of $1.5M (land: $112K). Assessment data is from the NYC Department of Finance (DOF).

When was 312 EAST 21 ST last sold?

312 EAST 21 ST, Brooklyn, NY 11226 last sold for $8M on Jul 19, 2019. Sale records are sourced from NYC ACRIS and Department of Finance rolling sales data.

What is the zoning for 312 EAST 21 ST?

312 EAST 21 ST, Brooklyn, NY 11226 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 312 EAST 21 ST?

312 EAST 21 ST, Brooklyn, NY 11226 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 312 EAST 21 ST?

Search 312 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 ($15, one-time) adds the complete title history, owner contacts, and a downloadable PDF.

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312 EAST 21 ST, Brooklyn, NY 11226 — Property Records, Permits, Violations, Tax & Zoning | RegWatch