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Brooklyn • Elevator Apartment

34 Jefferson Ave

Brooklyn, NY 11238Company-ownedBBL 3-01997-00BIN 3057383
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Updated Aug 1, 2026 · 16 sources

Year Built1911
Floors6
Units61
Building Area54,200 sqft
ZoningR6A
ClassD1
Market Value$4.6M

34 JEFFERSON AVE is a property located at 34 JEFFERSON AVE, Brooklyn, NY 11238. It is classified as a elevator apartment - semi-fireproof. The building was constructed in 1911. It has 6 floors and 61 units. The building area is 54,200 square feet on a 12,500 sqft lot. The property is zoned R6A. The assessed market value is $4.6M. It last sold for $8.4M on Aug 26, 2021. Public records list the property as company-owned. There are 52 building permits on record (37 active). There are 327 violations on record (14 currently open). 5 docketed judgments 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

762records on file
85Energy Star

Completed in 1911, 28 Jefferson Ave rises 6 stories over Kings. Public records put it at 61 units and 54,200 square feet of floor area, on land zoned R6A. It is carried on the public rolls at a market value of $4.6M, and assessed for tax at $2.1M. In the 53 years its record reaches back, the lot has drawn 762 separate government filings.

The documentary life of the address leans hard toward violation: 327 of its 762 records, fully 43%, fall under that one heading. Complaint (273) and permit (52) trail well behind. 14 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 2011.

On the environmental ledger, the building posts an Energy Star score of 85, with a site energy-use intensity of 76.6 kBtu per square foot. Its operations answer for roughly 271 metric tons of CO2-equivalent a year.

Read together — 43% violation, 53 years of accumulation, a parcel of Kings — these scattered records compose a portrait of the address that no single page sets out to draw.

$4.6M of Kings, written across 762 government filings.

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

Property Details

Address34 JEFFERSON AVE, Brooklyn, NY 11238
Building TypeElevator Apartment - Semi-Fireproof
D1
Year Built1911
Floors6
Total Units61
Building Area54,200 sqft
Lot Size12,500 sqft
ZoningR6A
ConditionAverage
3-01997-00
3057383
OwnershipCompany-owned

Assessment & Sales

$4.6M
$2.1M
$59K
$8.4M
Last Sale DateAug 26, 2021

Building Permits

52 on record · 37 active
Cats Registration InspectionOther
CURRENT
Filed Sep 30, 2025Job #465168
View this permit's full record & inspection history →
Asbestos AbatementDEP
CLOSED
Filed Jan 28, 2025Job #TRU2055BK24
View this permit's full record & inspection history →
General ConstructionDOB NOW
LOC ISSUED
Filed May 29, 2024Est. cost $75KJob #B00901243-I1
View this permit's full record & inspection history →
ElectricalDOB NOW
PERMIT ISSUED
Filed May 3, 2024Job #B01045638-I1-EL

FILING TO INSTALL MISSING CONED METER FOR APARTMENT 1E NO OTHER WORK

View this permit's full record & inspection history →
General ConstructionDOB NOW
LOC ISSUED
Filed Apr 1, 2024Est. cost $10KJob #B00948925-I1
View this permit's full record & inspection history →

+ 47 more permits — view full report

Violations

327 on record · 14 open
Judgments · 5 docketed
DOB summons (OATH)JUDGMENT DOCKETED
Docketed Aug 31, 2019Ticket #038264809K
FAILURE TO MAINTAIN ELEVATOR OR CONVEYING SYSTEM
FDNY summons (OATH)JUDGMENT DOCKETED
Docketed Oct 31, 2017Ticket #011591055L
HEATING AND REFRIGERATING EQUIPMENT AND SYSTEMS
Sanitation summons (OATH)JUDGMENT DOCKETED
Docketed Apr 30, 2015Ticket #041866714Y
IMPROPER DISPOSAL BEDDING 1ST OFFENSE
Sanitation summons (OATH)JUDGMENT DOCKETED
Docketed Mar 31, 2015Ticket #041906457X
IMPROPER DISPOSAL BEDDING 1ST OFFENSE
DOB summons (OATH)JUDGMENT DOCKETED
Docketed Jul 31, 1992Ticket #038008439J
FAILURE TO MAINTAIN ELEVATOR
HPDClass B
VIOLATION WILL BE REINSPECTED
Issued Dec 18, 2025#18516377

§ 27-2005 ADM CODE REPAIR THE ROOF SO THAT IT WILL NOT LEAK AT CEILING IN THE PRIVATE HALLWAY LOCATED AT APT 6K, 6th STORY, 1st APARTMENT FROM EAST AT SOUTH , SECTION ''WEST''

View this violation's full details & status history →
HPDClass B
VIOLATION WILL BE REINSPECTED
Issued Dec 18, 2025#18516382

§ 27-2005 ADM CODE REPAIR THE BROKEN OR DEFECTIVE PLASTERED SURFACES AND PAINT IN A UNIFORM COLOR AT CEILING IN THE 1st ROOM FROM EAST AT NORTH LOCATED AT APT 6K, 6th STORY, 1st APARTMENT FROM EAST AT SOUTH , SECTION ''WEST''

View this violation's full details & status history →
HPDClass C
VIOLATION WILL BE REINSPECTED
Issued Dec 18, 2025#18516383

§ 27-2033 ADM CODE PROVIDE READY ACCESS TO BUILDINGS HEATING SYSTEM LOCKED DOOR AT BASEMENT AT BOILER ROOM

View this violation's full details & status history →
HPDClass B
VIOLATION WILL BE REINSPECTED
Issued Dec 18, 2025#18516384

§ 27-2024 ADM CODE PROVIDE ADEQUATE SUPPLY OF HOT WATER FOR THE FIXTURES AT SINK IN THE KITCHEN LOCATED AT APT 6K, 6th STORY, 1st APARTMENT FROM EAST AT SOUTH , SECTION ''WEST''

View this violation's full details & status history →
HPDClass B
VIOLATION WILL BE REINSPECTED
Issued Dec 18, 2025#18516379

§ 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 THAT IS DEFECTIVE IN THE ENTIRE APARTMENT LOCATED AT APT 6K, 6th STORY, 1st APARTMENT FROM EAST AT SOUTH , SECTION ''WEST''

View this violation's full details & status history →

+ 322 more violations on record — view full report

Get the Complete Report for 34 JEFFERSON 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 34 JEFFERSON AVE, Brooklyn built?

The building at 34 JEFFERSON AVE, Brooklyn, NY 11238 was constructed in 1911. It is classified as a elevator apartment - semi-fireproof with 6 floors and 61 units. The building area is 54,200 sqft.

Are there building permits at 34 JEFFERSON AVE, Brooklyn?

Yes. 34 JEFFERSON AVE, Brooklyn, NY 11238 has 52 building permits on record, with 37 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 Sep 30, 2025.

Does 34 JEFFERSON AVE, Brooklyn have violations?

Yes. 34 JEFFERSON AVE, Brooklyn, NY 11238 has 327 violations on record, with 14 currently open. Breakdown: 32 DOB, 6 ECB, 289 HPD. Sources: NYC DOB, HPD, and ECB/OATH.

Does 34 JEFFERSON AVE, Brooklyn have docketed judgments?

Yes. 34 JEFFERSON AVE, Brooklyn, NY 11238 has 5 docketed judgments on record with the NYC Office of Administrative Trials & Hearings (OATH). 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 34 JEFFERSON AVE?

34 JEFFERSON AVE, Brooklyn, NY 11238 has an assessed market value of $4.6M and a total assessed value of $2.1M (land: $59K). Assessment data is from the NYC Department of Finance (DOF).

When was 34 JEFFERSON AVE last sold?

34 JEFFERSON AVE, Brooklyn, NY 11238 last sold for $8.4M on Aug 26, 2021. Sale records are sourced from NYC ACRIS and Department of Finance rolling sales data.

What is the zoning for 34 JEFFERSON AVE?

34 JEFFERSON AVE, Brooklyn, NY 11238 is zoned R6A. 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 34 JEFFERSON AVE?

34 JEFFERSON AVE, Brooklyn, NY 11238 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 34 JEFFERSON AVE?

Search 34 JEFFERSON 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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34 JEFFERSON AVE, Brooklyn, NY 11238 — Property Records, Permits, Violations, Tax & Zoning | RegWatch