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Brooklyn • Education

900 St Marks Ave

Brooklyn, NY 11213Government-ownedBBL 3012290028BIN 3031050
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16 sources

Year Built1958
Floors3
Units1
Building Area113,500 sqft
ZoningR6
ClassW1
Market Value$20.1M

900 ST MARKS AVE is a property located at 900 ST MARKS AVE, Brooklyn, NY 11213. It is classified as a education - public school. The building was constructed in 1958. It has 3 floors and 1 unit. The building area is 113,500 square feet on a 96,210 sqft lot. The property is zoned R6. The assessed market value is $20.1M. Public records list the property as government-owned. There are 142 building permits on record (94 active). There are 152 violations on record (42 currently open). 1 docketed judgment carrying $1,300 in open balances is 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

430records on file
92Energy Star

Completed in 1958, 900 St Marks Ave rises 3 stories over Kings. Public records put it at 1 unit and 113,500 square feet of floor area, on land zoned R6. It is carried on the public rolls at a market value of $20.1M, and assessed for tax at $9.1M. In the 39 years its record reaches back, the lot has drawn 430 separate government filings.

The documentary life of the address leans hard toward violation: 152 of its 430 records, fully 35%, fall under that one heading. Permit (142) and enforcement (61) trail well behind. 42 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 92, with a site energy-use intensity of 51.8 kBtu per square foot. Its operations answer for roughly 463 metric tons of CO2-equivalent a year.

Read together — 35% violation, 39 years of accumulation, a parcel of Kings — these scattered records compose a portrait of the address that no single page sets out to draw.

$20.1M of Kings, written across 430 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
latest record

Property Details

Address900 ST MARKS AVE, Brooklyn, NY 11213
Building TypeEducation - Public School
W1
Year Built1958
Floors3
Total Units1
Building Area113,500 sqft
Lot Size96,210 sqft
ZoningR6
3012290028
3031050
OwnershipGovernment-owned

Assessment & Sales

$20.1M
$9.1M
$1.1M

Building Permits

142 on record · 94 active
General ConstructionDOB NOW
PLAN EXAMINER REVIEW
Filed Oct 23, 2026Est. cost $85KJob #B01466931-I1
View this permit's full record & inspection history →
General ConstructionDOB NOW
PLAN EXAMINER REVIEW
Filed Oct 23, 2026Est. cost $70KJob #B01466958-I1
View this permit's full record & inspection history →
General ConstructionDOB NOW
OBJECTIONS
Filed May 14, 2026Est. cost $235KJob #B01113152-P2
View this permit's full record & inspection history →
General ConstructionDOB NOW
APPROVED
Filed May 12, 2026Est. cost $1.7MJob #B01360763-S5
View this permit's full record & inspection history →
General ConstructionDOB NOW
APPROVED
Filed May 12, 2026Est. cost $19.3MJob #B01360763-I1
View this permit's full record & inspection history →

+ 137 more permits — view full report

Violations

152 on record · 42 open
Open judgment balance — docketed OATH judgments$1,300
Judgments · 1 docketed
DEP summons (OATH)JUDGMENT DOCKETED
Docketed Oct 31, 2025Balance $1,300Ticket #000913823P
IDLING OF MOTOR VEHICLE ENGINE OVER 1MIN WHILE ADJACENT TO SCHOOL 1ST
SafetyElevator
ACTIVE
Issued Oct 2, 2026#VIO-FTF-VT-PER-202512-0000817

Violation Issued-Failure To File 2025 Periodic Inspection Report

View this violation's full details & status history →
SafetyElevator
ACTIVE
Issued Oct 2, 2026#VIO-FTF-VT-CAT1-202512-0000605

Violation Issued-Failure To File 2025 Cat1 Test Report

View this violation's full details & status history →
ECBConstruction
ACTIVE
Issued Apr 8, 2026#35731600K

FAILURE TO MAINTAIN BUILDING IN CODE-COMPLIANT MANNER. AT THE TIME OF INSPECTION, STAIRCASE "D" DOOR HEAD HAD SPALLING AND EFFLORENCES ON 2ND FLOOR, LARGE FABRIC AWNING OVER CLASSROOM DOOR 125, EXTERIOR STAIR A

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ECBConstruction
ACTIVE
Issued Apr 8, 2026#35732348M

FAILURE TO MAINTAIN BUILDING IN CODE-COMPLIANT MANNER. AT THE TIME OF INSPECTION, THE FOLLOWING DOORS WERE NOT SELF-CLOSING:-DOUBLE SWING CORRIDOR DOOR NEXT TO 323, 324, 203 LIBRARY, 204, 222, 223, STAIRCASE "C

View this violation's full details & status history →
ECBConstruction
ACTIVE
Issued Apr 8, 2026#35732349Y

FAILURE TO MAINTAIN BUILDING IN CODE-COMPLIANT MANNER.ILLUMINATION FOREXITS,EXIT DISCHARGES AND PUBLIC CORRIDORS PER BC 1006.1;27-381.AT THETIME OF INSPECTION,THE FOLLOWING EMERGENCY LIGHTS WERE INOPERABLE 3 LI

View this violation's full details & status history →

+ 147 more violations on record — view full report

Get the Complete Report for 900 ST MARKS 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 900 ST MARKS AVE, Brooklyn built?

The building at 900 ST MARKS AVE, Brooklyn, NY 11213 was constructed in 1958. It is classified as a education - public school with 3 floors and 1 unit. The building area is 113,500 sqft.

Are there building permits at 900 ST MARKS AVE, Brooklyn?

Yes. 900 ST MARKS AVE, Brooklyn, NY 11213 has 142 building permits on record, with 94 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 (PLAN EXAMINER REVIEW) filed Oct 23, 2026.

Does 900 ST MARKS AVE, Brooklyn have violations?

Yes. 900 ST MARKS AVE, Brooklyn, NY 11213 has 152 violations on record, with 42 currently open. Breakdown: 28 DOB Safety, 56 DOB, 68 ECB. Sources: NYC DOB, HPD, and ECB/OATH.

Does 900 ST MARKS AVE, Brooklyn have docketed judgments?

Yes. 900 ST MARKS AVE, Brooklyn, NY 11213 has 1 docketed judgment on record with the NYC Office of Administrative Trials & Hearings (OATH), with an open balance of $1,300. 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 900 ST MARKS AVE?

900 ST MARKS AVE, Brooklyn, NY 11213 has an assessed market value of $20.1M and a total assessed value of $9.1M (land: $1.1M). Assessment data is from the NYC Department of Finance (DOF).

What is the zoning for 900 ST MARKS AVE?

900 ST MARKS AVE, Brooklyn, NY 11213 is zoned R6. 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 900 ST MARKS AVE?

900 ST MARKS AVE, Brooklyn, NY 11213 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 900 ST MARKS AVE?

Search 900 ST MARKS 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 ($15, one-time) adds the complete title history, owner contacts, and a downloadable PDF.

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900 ST MARKS AVE, Brooklyn, NY 11213 — Property Records, Permits, Violations, Tax & Zoning | RegWatch