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3728 Ave K

Brooklyn, NY 11210Company-ownedBBL 3078080036BIN 3216974
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Updated Aug 1, 2026 · 16 sources

Year Built1926
Floors4
Units58
Building Area41,596 sqft
ZoningR5
ClassC1
Market Value$3.8M

3728 AVE K is a property located at 3728 AVE K, Brooklyn, NY 11210. It is classified as a walk-up apartment - over six families without stores. The building was constructed in 1926. It has 4 floors and 58 units. The building area is 41,596 square feet on a 9,782 sqft lot. The property is zoned R5. The assessed market value is $3.8M. It last sold for $6.6M on Feb 24, 2014. Public records list the property as company-owned. There are 5 building permits on record (3 active). There are 615 violations on record (78 currently open). 10 docketed judgments carrying $3,125 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

1,785records on file
23Energy Star

Completed in 1926, 3728 Ave K rises 4 stories over Kings. Public records put it at 58 units and 41,596 square feet of floor area, on land zoned R5. It is carried on the public rolls at a market value of $3.8M, and assessed for tax at $1.7M. In the 55 years its record reaches back, the lot has drawn 1,785 separate government filings — a paper trail nearly as tall as the building itself.

The documentary life of the address leans hard toward complaint: 1,058 of its 1,785 records, fully 59%, fall under that one heading. Violation (615) and inspection (22) trail well behind. 78 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 2024.

On the environmental ledger, the building posts an Energy Star score of 23, with a site energy-use intensity of 115.2 kBtu per square foot. Its operations answer for roughly 288 metric tons of CO2-equivalent a year.

Read together — 59% complaint, 55 years of accumulation, a parcel of Kings — these scattered records compose a portrait of the address that no single page sets out to draw.

$3.8M of Kings, written across 1,785 government filings.

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

Property Details

Address3728 AVE K, Brooklyn, NY 11210
Building TypeWalk-Up Apartment - Over Six Families Without Stores
C1
Year Built1926
Floors4
Total Units58
Building Area41,596 sqft
Lot Size9,782 sqft
ZoningR5
ConditionAverage
3078080036
3216974
OwnershipCompany-owned

Assessment & Sales

$3.8M
$1.7M
$116K
$6.6M
Last Sale DateFeb 24, 2014

Building Permits

5 on record · 3 active
Cats Registration InspectionOther
CURRENT
Filed Aug 8, 2025Job #463796
View this permit's full record & inspection history →
Construction EquipmentDOB Legacy
ISSUED
Filed May 17, 2016Job #340380108-01-01

EQ

View this permit's full record & inspection history →
Alteration — Type 3DOB Legacy
PERMIT ISSUED - ENTIRE JOB/WORK
Filed May 17, 2016Job #340380108-01
View this permit's full record & inspection history →
Dec Bulk StorageOther
IN SERVICE
Filed Jun 8, 1985Job #PBS:2-107735:001:#2 FUEL OIL (ON-SITE CONSUMPTION)
View this permit's full record & inspection history →
Limited AlterationDOB NOW
PERMITTED
Filed N/AJob #B00692255-I1
View this permit's full record & inspection history →

Violations

615 on record · 78 open
Open judgment balance — docketed OATH judgments$3,125
Judgments · 10 docketed
DOB summons (OATH)JUDGMENT DOCKETED
Docketed Oct 31, 2019Balance $3,125Ticket #039003812M
FAIL MAINTAIN BLDG IN COMPLIANT MANNER: SERVICE EQUIPMENT - BOILER
Sanitation summons (OATH)JUDGMENT DOCKETED
Docketed Jan 31, 2019Ticket #041446618N
RECYCLABLES PLACED FOR COLLECTION WITH NON-RECYC 9+ DWELLING UNITS
Sanitation summons (OATH)JUDGMENT DOCKETED
Docketed Mar 31, 2018Ticket #0197198477
IMPROPER DISPOSAL BEDDING 1ST OFFENSE
Sanitation summons (OATH)JUDGMENT DOCKETED
Docketed Aug 31, 2017Ticket #0195039058
IMPROPER DISPOSAL BEDDING 1ST OFFENSE
Sanitation summons (OATH)JUDGMENT DOCKETED
Docketed Apr 30, 2017Ticket #041923961J
UNCOVERED RECEPTACLES 1ST OFFENSE

+ 5 more docketed judgments — view full report

HPDClass C
NOTICE OF ISSUANCE SENT TO TENANT
Issued Feb 20, 2026#18701433

HMC ADM CODE: § 27-2017.4 ABATE THE INFESTATION CONSISTING OF ROACHES IN THE ENTIRE APARTMENT LOCATED AT APT C22, 2nd STORY, 1st APARTMENT FROM WEST AT NORTH , SECTION ''C''

View this violation's full details & status history →
HPDClass C
NOTICE OF ISSUANCE SENT TO TENANT
Issued Feb 20, 2026#18701434

HMC ADM CODE: § 27-2017.4 ABATE THE INFESTATION CONSISTING OF MICE IN THE ENTIRE APARTMENT LOCATED AT APT C22, 2nd STORY, 1st APARTMENT FROM WEST AT NORTH , SECTION ''C''

View this violation's full details & status history →
HPDClass B
NOT COMPLIED WITH
Issued Sep 2, 2025#18199768

§ 27-2010, 2011, 2012 ADM CODE REMOVE THE ACCUMULATION OF REFUSE AND/OR RUBBISH AND MAINTAIN IN A CLEAN CONDITION THE WEST YARD

View this violation's full details & status history →

+ 612 more violations on record — view full report

Get the Complete Report for 3728 AVE K

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

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Frequently Asked Questions

When was 3728 AVE K, Brooklyn built?

The building at 3728 AVE K, Brooklyn, NY 11210 was constructed in 1926. It is classified as a walk-up apartment - over six families without stores with 4 floors and 58 units. The building area is 41,596 sqft.

Are there building permits at 3728 AVE K, Brooklyn?

Yes. 3728 AVE K, Brooklyn, NY 11210 has 5 building permits on record, with 3 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 Aug 8, 2025.

Does 3728 AVE K, Brooklyn have violations?

Yes. 3728 AVE K, Brooklyn, NY 11210 has 615 violations on record, with 78 currently open. Breakdown: 3 DOB, 8 ECB, 604 HPD. Sources: NYC DOB, HPD, and ECB/OATH.

Does 3728 AVE K, Brooklyn have docketed judgments?

Yes. 3728 AVE K, Brooklyn, NY 11210 has 10 docketed judgments on record with the NYC Office of Administrative Trials & Hearings (OATH), with an open balance of $3,125. 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 3728 AVE K?

3728 AVE K, Brooklyn, NY 11210 has an assessed market value of $3.8M and a total assessed value of $1.7M (land: $116K). Assessment data is from the NYC Department of Finance (DOF).

When was 3728 AVE K last sold?

3728 AVE K, Brooklyn, NY 11210 last sold for $6.6M on Feb 24, 2014. Sale records are sourced from NYC ACRIS and Department of Finance rolling sales data.

What is the zoning for 3728 AVE K?

3728 AVE K, Brooklyn, NY 11210 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 3728 AVE K?

3728 AVE K, Brooklyn, NY 11210 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 3728 AVE K?

Search 3728 AVE K 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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3728 AVE K, Brooklyn, NY 11210 — Property Records, Permits, Violations, Tax & Zoning | RegWatch