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6901 21 Ave

Brooklyn, NY 11204Individually ownedBBL 3061640006BIN 3156889
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Updated Aug 1, 2026 · 16 sources

Year Built1927
Floors4
Units38
Building Area34,000 sqft
ZoningR5
ClassC1
Market Value$1.7M

6901 21 AVE is a property located at 6901 21 AVE, Brooklyn, NY 11204. It is classified as a walk-up apartment - over six families without stores. The building was constructed in 1927. It has 4 floors and 38 units. The building area is 34,000 square feet on a 9,800 sqft lot. The property is zoned R5. The assessed market value is $1.7M. Public records list the property as individually owned. There are 10 building permits on record (6 active). There are 64 violations on record (34 currently open). Data sourced from NYC Department of Buildings (DOB), Housing Preservation & Development (HPD), Department of Finance (DOF), and other government agencies.

A RegWatch Dossier

172records on file
42Energy Star

Completed in 1927, 6901 21 Ave rises 4 stories over Kings. Public records put it at 38 units and 34,000 square feet of floor area, on land zoned R5. It is carried on the public rolls at a market value of $1.7M, and assessed for tax at $752K. In the 50 years its record reaches back, the lot has drawn 172 separate government filings.

The documentary life of the address leans hard toward violation: 64 of its 172 records, fully 37%, fall under that one heading. Complaint (57) and inspection (16) trail well behind. 34 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 2015.

On the environmental ledger, the building posts an Energy Star score of 42, with a site energy-use intensity of 89.6 kBtu per square foot. Its operations answer for roughly 181 metric tons of CO2-equivalent a year.

Read together — 37% violation, 50 years of accumulation, a parcel of Kings — these scattered records compose a portrait of the address that no single page sets out to draw.

$1.7M of Kings, written across 172 government filings.

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

Property Details

Address6901 21 AVE, Brooklyn, NY 11204
Building TypeWalk-Up Apartment - Over Six Families Without Stores
C1
Year Built1927
Floors4
Total Units38
Building Area34,000 sqft
Lot Size9,800 sqft
ZoningR5
ConditionAverage
3061640006
3156889
OwnershipIndividually owned

Assessment & Sales

$1.7M
$752K
$122K

Building Permits

10 on record · 6 active
Cats RegistrationOther
CURRENT
Filed Aug 7, 2025Job #469346
View this permit's full record & inspection history →
ElectricalDOB NOW
APPROVED
Filed Apr 5, 2024Job #B00984705-P1

Panel replacement basement and boiler room

View this permit's full record & inspection history →
ElectricalDOB NOW
COMPLETE
Filed Jan 3, 2024Job #B00984705-I1-EL

Panel replacement basement and boiler room

View this permit's full record & inspection history →
Alteration — Type 2DOB Legacy
SIGNED OFF
Filed May 23, 2014Est. cost $2KJob #340075359-01
View this permit's full record & inspection history →
Construction EquipmentDOB Legacy
ISSUED
Filed Jul 25, 2013Job #340075359-01-01

PL

View this permit's full record & inspection history →

+ 5 more permits — view full report

Violations

64 on record · 34 open
HPDClass C
NOV SENT OUT
Issued Jul 2, 2025#18064763

§ 27-2005 HMC: PROPERLY REPAIR OR REPLACE THE BROKEN OR DEFECTIVE GLASS AT LOWER SASH WINDOW AT SOUTH WALL AT PUBLIC HALL STAIRS, 2nd STORY

View this violation's full details & status history →
HPDClass B
NOV SENT OUT
Issued Oct 9, 2023#16298513

§ 27-2026, 2027 HMC: PROPERLY REPAIR THE SOURCE AND ABATE THE EVIDENCE OF A WATER LEAK AT CEILING IN THE BATHROOM LOCATED AT APT 1C, 3rd STORY, 1st APARTMENT FROM WEST AT NORTH

View this violation's full details & status history →
HPDClass B
NOV SENT OUT
Issued Oct 9, 2023#16298514

§ 27-2005 ADM CODE REPAIR THE BROKEN OR DEFECTIVE PLASTERED SURFACES AND PAINT IN A UNIFORM COLOR AT CEILING IN THE BATHROOM LOCATED AT APT 1C, 3rd STORY, 1st APARTMENT FROM WEST AT NORTH

View this violation's full details & status history →
HPDClass B
NOV SENT OUT
Issued Oct 9, 2023#16298511

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

View this violation's full details & status history →
HPDClass B
FIRST NO ACCESS TO RE- INSPECT VIOLATION
Issued Oct 9, 2023#16298512

§ 27-2017.3 HMC: TRACE AND REPAIR THE SOURCE AND ABATE THE VISIBLE MOLD CONDITION... APPROX 10 SQ.FT AT CEILING AND NORTH WALL IN THE 1st ROOM FROM NORTH AT EAST LOCATED AT APT 1C, 3rd STORY, 1st APARTMENT FROM WEST AT NORTH

View this violation's full details & status history →

+ 59 more violations on record — view full report

Get the Complete Report for 6901 21 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 6901 21 AVE, Brooklyn built?

The building at 6901 21 AVE, Brooklyn, NY 11204 was constructed in 1927. It is classified as a walk-up apartment - over six families without stores with 4 floors and 38 units. The building area is 34,000 sqft.

Are there building permits at 6901 21 AVE, Brooklyn?

Yes. 6901 21 AVE, Brooklyn, NY 11204 has 10 building permits on record, with 6 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 7, 2025.

Does 6901 21 AVE, Brooklyn have violations?

Yes. 6901 21 AVE, Brooklyn, NY 11204 has 64 violations on record, with 34 currently open. Breakdown: 2 DOB, 1 ECB, 61 HPD. Sources: NYC DOB, HPD, and ECB/OATH.

Does 6901 21 AVE, Brooklyn have docketed judgments?

No docketed OATH judgments were found in local records for 6901 21 AVE, Brooklyn, NY 11204. Judgment data is sourced from NYC Office of Administrative Trials & Hearings (OATH) hearing records.

What is the property tax assessment for 6901 21 AVE?

6901 21 AVE, Brooklyn, NY 11204 has an assessed market value of $1.7M and a total assessed value of $752K (land: $122K). Assessment data is from the NYC Department of Finance (DOF).

What is the zoning for 6901 21 AVE?

6901 21 AVE, Brooklyn, NY 11204 is zoned R5. 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 6901 21 AVE?

6901 21 AVE, Brooklyn, NY 11204 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 6901 21 AVE?

Search 6901 21 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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6901 21 AVE, Brooklyn, NY 11204 — Property Records, Permits, Violations, Tax & Zoning | RegWatch