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Brooklyn • Primarily Residential

91 Oak St

Brooklyn, NY 11222Company-ownedBBL 3025690001BIN 3064942
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Updated Aug 1, 2026 · 16 sources

Year Built1931
Floors3
Units4
Building Area3,112 sqft
ZoningR6B
ClassS3
Market Value$1.2M

91 OAK ST is a property located at 91 OAK ST, Brooklyn, NY 11222. It is classified as a primarily residential - mixed use with 7+ units. The building was constructed in 1931. It has 3 floors and 4 units. The building area is 3,112 square feet on a 1,500 sqft lot. The property is zoned R6B. The assessed market value is $1.2M. It last sold for $3M on Jan 23, 2019. Public records list the property as company-owned. There are 28 building permits on record (16 active). There are 21 violations on record (1 currently open). 2 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

155records on file

Completed in 1931, 91 Oak St rises 3 stories over Kings. Public records put it at 4 units and 3,112 square feet of floor area, on land zoned R6B. It is carried on the public rolls at a market value of $1.2M, and assessed for tax at $558K. In the 52 years its record reaches back, the lot has drawn 155 separate government filings.

The documentary life of the address leans hard toward complaint: 38 of its 155 records, fully 25%, fall under that one heading. Permit (28) and violation (21) trail well behind. 1 violation stands 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 2022.

Read together — 25% complaint, 52 years of accumulation, a parcel of Kings — these scattered records compose a portrait of the address that no single page sets out to draw.

$1.2M of Kings, written across 155 government filings.

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

Property Details

Address91 OAK ST, Brooklyn, NY 11222
Building TypePrimarily Residential - Mixed Use with 7+ Units
S3
Year Built1931
Floors3
Total Units4
Building Area3,112 sqft
Lot Size1,500 sqft
ZoningR6B
ConditionAverage
3025690001
3064942
OwnershipCompany-owned

Assessment & Sales

$1.2M
$558K
$25K
$3M
Last Sale DateJan 23, 2019

Building Permits

28 on record · 16 active
Mechanical SystemsDOB NOW
PERMIT ISSUED
Filed Jun 12, 2026Est. cost $15KJob #B01388994-I1

Initial Permit

View this permit's full record & inspection history →
General ConstructionDOB NOW
PERMIT ENTIRE
Filed Jun 12, 2026Est. cost $15KJob #B01388994-I1
View this permit's full record & inspection history →
General ConstructionDOB NOW
CO ISSUED
Filed Nov 14, 2023Est. cost $10KJob #B00735693-I1
View this permit's full record & inspection history →
General ConstructionDOB NOW
LOC ISSUED
Filed Nov 1, 2023Est. cost $15KJob #B00735693-S2
View this permit's full record & inspection history →
General ConstructionDOB NOW
APPROVED
Filed Nov 1, 2023Est. cost $10KJob #B00735693-P5
View this permit's full record & inspection history →

+ 23 more permits — view full report

Violations

21 on record · 1 open
Judgments · 2 docketed
Sanitation summons (OATH)JUDGMENT DOCKETED
Docketed Apr 30, 2026Ticket #049413642N
IMPROPER RECEPTACLE FAILURE TO CONTAINERIZE - RESIDENTIAL 1ST
Sanitation summons (OATH)JUDGMENT DOCKETED
Docketed Oct 31, 2023Ticket #047765229X
LOOSE RUBBISH 1ST OCCURRENCE
HPDClass A
NOV SENT OUT
Issued May 4, 2026#18870270

(A) § HMC:FILE ANNUAL BEDBUG REPORT IN ACCORDANCE WITH HPD RULE AS DESCRIBED ON THE BACK OF THIS NOTICE OF VIOLATION OR AS DESCRIBED ON HPDS WEBSITE, WWW.NYC.GOV\HPD, SEARCH BED BUGS.

View this violation's full details & status history →

+ 20 more violations on record — view full report

Get the Complete Report for 91 OAK ST

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

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Frequently Asked Questions

When was 91 OAK ST, Brooklyn built?

The building at 91 OAK ST, Brooklyn, NY 11222 was constructed in 1931. It is classified as a primarily residential - mixed use with 7+ units with 3 floors and 4 units. The building area is 3,112 sqft.

Are there building permits at 91 OAK ST, Brooklyn?

Yes. 91 OAK ST, Brooklyn, NY 11222 has 28 building permits on record, with 16 currently active. Permits are sourced from the NYC Department of Buildings (DOB Legacy and DOB NOW systems). The most recent permit is a Mechanical Systems (PERMIT ISSUED) filed Jun 12, 2026.

Does 91 OAK ST, Brooklyn have violations?

Yes. 91 OAK ST, Brooklyn, NY 11222 has 21 violations on record, with 1 currently open. Breakdown: 1 DOB, 9 ECB, 11 HPD. Sources: NYC DOB, HPD, and ECB/OATH.

Does 91 OAK ST, Brooklyn have docketed judgments?

Yes. 91 OAK ST, Brooklyn, NY 11222 has 2 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 91 OAK ST?

91 OAK ST, Brooklyn, NY 11222 has an assessed market value of $1.2M and a total assessed value of $558K (land: $25K). Assessment data is from the NYC Department of Finance (DOF).

When was 91 OAK ST last sold?

91 OAK ST, Brooklyn, NY 11222 last sold for $3M on Jan 23, 2019. Sale records are sourced from NYC ACRIS and Department of Finance rolling sales data.

What is the zoning for 91 OAK ST?

91 OAK ST, Brooklyn, NY 11222 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 91 OAK ST?

91 OAK ST, Brooklyn, NY 11222 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 91 OAK ST?

Search 91 OAK ST 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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91 OAK ST, Brooklyn, NY 11222 — Property Records, Permits, Violations, Tax & Zoning | RegWatch