Skip to content

Brooklyn • Education

50 Jefferson Ave

Brooklyn, NY 11238Government-ownedBBL 3019980001BIN 3057406
Save buildingView report

Updated Aug 1, 2026 · 16 sources

Year Built1948
Floors3
Units1
Building Area111,000 sqft
ZoningR6B
ClassW1
Market Value$12M

50 JEFFERSON AVE is a property located at 50 JEFFERSON AVE, Brooklyn, NY 11238. It is classified as a education - public school. The building was constructed in 1948. It has 3 floors and 1 unit. The building area is 111,000 square feet on a 62,000 sqft lot. The property is zoned R6B. The assessed market value is $12M. Public records list the property as government-owned. There are 209 building permits on record (162 active). There are 88 violations on record (6 currently open). 3 docketed judgments carrying $2,000 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

507records on file
55Energy Star

Completed in 1948, 50 Jefferson Ave rises 3 stories over Kings. Public records put it at 1 unit and 111,000 square feet of floor area, on land zoned R6B. It is carried on the public rolls at a market value of $12.0M, and assessed for tax at $5.4M. In the 49 years its record reaches back, the lot has drawn 507 separate government filings.

The documentary life of the address leans hard toward permit: 209 of its 507 records, fully 41%, fall under that one heading. Violation (88) and enforcement (85) trail well behind. 6 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 2023.

On the environmental ledger, the building posts an Energy Star score of 55, with a site energy-use intensity of 76.7 kBtu per square foot. Its operations answer for roughly 474 metric tons of CO2-equivalent a year.

Read together — 41% permit, 49 years of accumulation, a parcel of Kings — these scattered records compose a portrait of the address that no single page sets out to draw.

$12.0M of Kings, written across 507 government filings.

Open the live report — daily-updated data, AI chat & alerts
Sources
NYC DOBNYC HPDNYC DOFACRISNYC DCPECB/OATHNYC DEPNYC LPCNYC FDNYNYS DHCRMOCEJFEMAEPAUS CensusHUDUSGS
updated

Property Details

Address50 JEFFERSON AVE, Brooklyn, NY 11238
Building TypeEducation - Public School
W1
Year Built1948
Floors3
Total Units1
Building Area111,000 sqft
Lot Size62,000 sqft
ZoningR6B
3019980001
3057406
OwnershipGovernment-owned

Assessment & Sales

$12M
$5.4M
$491K

Building Permits

209 on record · 162 active
General ConstructionDOB NOW
PERMIT ISSUED
Filed Mar 16, 2026Est. cost $5MJob #B00710428-I1

Renewal Permit Without Changes

View this permit's full record & inspection history →
General ConstructionDOB NOW
PERMIT ISSUED
Filed Mar 16, 2026Est. cost $100KJob #B00710428-S2

Renewal Permit Without Changes

View this permit's full record & inspection history →
General ConstructionDOB NOW
PERMIT ENTIRE
Filed Mar 16, 2026Est. cost $100KJob #B00710428-S2
View this permit's full record & inspection history →
General ConstructionDOB NOW
PERMIT ENTIRE
Filed Mar 16, 2026Est. cost $5MJob #B00710428-I1
View this permit's full record & inspection history →
General ConstructionDOB NOW
PERMIT ENTIRE
Filed Jan 20, 2026Est. cost $500KJob #B00710428-S1
View this permit's full record & inspection history →

+ 204 more permits — view full report

Violations

88 on record · 6 open
Open judgment balance — docketed OATH judgments$2,000
Judgments · 3 docketed
FDNY summons (OATH)JUDGMENT DOCKETED
Docketed Oct 31, 2023Balance $1,000Ticket #014065782R
CERTIFICATES OF FITNESS AND CERTIFICATES OF QUALIFICATION
FDNY summons (OATH)JUDGMENT DOCKETED
Docketed Feb 28, 2023Balance $1,000Ticket #014034307X
INSPECTION AND TESTING
OATH summonsJUDGMENT DOCKETED
Docketed Jan 31, 2005Ticket #0138275702
20040805N
ECBConstruction
ACTIVE
Issued May 26, 2026#35731845Z

EXIT DOOR NOT SELF CLOSING.NOTED:AT 1ST FL EXIT 3,6 DOORS ARE INDISREPAIR/NOT CLOSING WHEN TESTED.REM:REPAIR/REPLACE DOOR.

View this violation's full details & status history →
ECBConstruction
ACTIVE
Issued May 26, 2026#35731842N

FAILURE TO MAINTAIN BUILDING IN CODE COMPLIANT MANNER.ILLUMINATION FOREXITS,EXIT DISCHARGES AND PUBLIC CORRIDORS PER BC 1006.1;27-381.NOTED:AT 1ST FL AUDITORIUM EMERGENCY LIGHTS NOT WORKING WHEN TESTED THROUGHO

View this violation's full details & status history →

+ 86 more violations on record — view full report

Get the Complete Report for 50 JEFFERSON AVE

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

Free to view core records, no credit card required — the paid report adds title history & analysis.

View Report

Frequently Asked Questions

When was 50 JEFFERSON AVE, Brooklyn built?

The building at 50 JEFFERSON AVE, Brooklyn, NY 11238 was constructed in 1948. It is classified as a education - public school with 3 floors and 1 unit. The building area is 111,000 sqft.

Are there building permits at 50 JEFFERSON AVE, Brooklyn?

Yes. 50 JEFFERSON AVE, Brooklyn, NY 11238 has 209 building permits on record, with 162 currently active. Permits are sourced from the NYC Department of Buildings (DOB Legacy and DOB NOW systems). The most recent permit is a General Construction (PERMIT ISSUED) filed Mar 16, 2026.

Does 50 JEFFERSON AVE, Brooklyn have violations?

Yes. 50 JEFFERSON AVE, Brooklyn, NY 11238 has 88 violations on record, with 6 currently open. Breakdown: 28 DOB, 60 ECB. Sources: NYC DOB, HPD, and ECB/OATH.

Does 50 JEFFERSON AVE, Brooklyn have docketed judgments?

Yes. 50 JEFFERSON AVE, Brooklyn, NY 11238 has 3 docketed judgments on record with the NYC Office of Administrative Trials & Hearings (OATH), with an open balance of $2,000. 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 50 JEFFERSON AVE?

50 JEFFERSON AVE, Brooklyn, NY 11238 has an assessed market value of $12M and a total assessed value of $5.4M (land: $491K). Assessment data is from the NYC Department of Finance (DOF).

What is the zoning for 50 JEFFERSON AVE?

50 JEFFERSON AVE, Brooklyn, NY 11238 is zoned R6B. 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 50 JEFFERSON AVE?

50 JEFFERSON AVE, Brooklyn, NY 11238 is government-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 50 JEFFERSON AVE?

Search 50 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.

Search Another Property

Look up violations, permits, and records for any tri-state address.

Related searches
Brooklyn Property Search →Brooklyn Permit Search →Brooklyn Violation Lookup →Brooklyn Tax Search →Brooklyn Title Search →Brooklyn Zoning Lookup →NYC Permit Search →NYC Violation Lookup →NYC Property Tax →NYC Zoning Lookup →NYC Compliance Deadlines →NYC Violation Types →Free Property Search →Data Sources →
50 JEFFERSON AVE, Brooklyn, NY 11238 — Property Records, Permits, Violations, Tax & Zoning | RegWatch