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Brooklyn • Office

2433 Knapp St

Brooklyn, NY 11235Company-ownedBBL 3088330001BIN 3421822
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Updated Aug 1, 2026 · 16 sources

Year Built2019
Floors3
Units1
Building Area29,835 sqft
ZoningC3
ClassO2
Market Value$4.9M

2433 KNAPP ST is a property located at 2433 KNAPP ST, Brooklyn, NY 11235. It is classified as a office - fireproof (over 100k sq ft). The building was constructed in 2019. It has 3 floors and 1 unit. The building area is 29,835 square feet on a 78,000 sqft lot. The property is zoned C3. The assessed market value is $4.9M. It last sold for $1.5M on Apr 2, 2015. Public records list the property as company-owned. There are 33 building permits on record (23 active). There are 37 violations on record (3 currently open). 4 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

187records on file
96Energy Star

Completed in 2019, 2433 Knapp St rises 3 stories over Kings. Public records put it at 1 unit and 29,835 square feet of floor area, on land zoned C3. It is carried on the public rolls at a market value of $4.9M, and assessed for tax at $2.2M. In the 58 years its record reaches back, the lot has drawn 187 separate government filings.

The documentary life of the address leans hard toward violation: 37 of its 187 records, fully 20%, fall under that one heading. Permit (33) and complaint (30) trail well behind. 3 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 2009.

On the environmental ledger, the building posts an Energy Star score of 96, with a site energy-use intensity of 28.8 kBtu per square foot. Its operations answer for roughly 106 metric tons of CO2-equivalent a year.

Read together — 20% violation, 58 years of accumulation, a parcel of Kings — these scattered records compose a portrait of the address that no single page sets out to draw.

$4.9M of Kings, written across 187 government filings.

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

Property Details

Address2433 KNAPP ST, Brooklyn, NY 11235
Building TypeOffice - Fireproof (over 100K sq ft)
O2
Year Built2019
Floors3
Total Units1
Building Area29,835 sqft
Lot Size78,000 sqft
ZoningC3
3088330001
3421822 +1 more
OwnershipCompany-owned

Assessment & Sales

$4.9M
$2.2M
$264K
$1.5M
Last Sale DateApr 2, 2015

Building Permits

33 on record · 23 active
General ConstructionDOB NOW
PERMIT ENTIRE
Filed Apr 26, 2022Est. cost $1KJob #B00569946-I1
View this permit's full record & inspection history →
Curb CutDOB NOW
PERMIT ISSUED
Filed Jan 31, 2022Est. cost $1KJob #B00569946-I1

Initial Permit

View this permit's full record & inspection history →
General ConstructionDOB NOW
LOC ISSUED
Filed Dec 28, 2020Est. cost $1Job #B00002842-I1
View this permit's full record & inspection history →
New BuildingDOB Legacy
SIGNED OFF
Filed Sep 3, 2019Job #321398000-01

GEN. CONSTR.

View this permit's full record & inspection history →
Alteration — Type 2DOB Legacy
SIGNED OFF
Filed Aug 27, 2019Est. cost $1KJob #321568415-01
View this permit's full record & inspection history →

+ 28 more permits — view full report

Violations

37 on record · 3 open
Judgments · 4 docketed
DOB summons (OATH)JUDGMENT DOCKETED
Docketed Jul 31, 2019Ticket #035312483Y
INSULATION PLACEMENT AND OR R VALUES DO NOT MEET MIN. REQ.
DOB summons (OATH)JUDGMENT DOCKETED
Docketed Jan 31, 2009Ticket #034640370Y
JOB SITE FENCE DEFECTIVE.
DOB summons (OATH)JUDGMENT DOCKETED
Docketed Jul 26, 2011Ticket #034627454P
FAILURE TO NOTIFY DOB PRIOR TO COMMENCEMENT OF DEMO WORK - HAZARDOUS
OATH summonsJUDGMENT DOCKETED
Docketed Apr 30, 2002Ticket #0109086964
20010919N
DOB LegacyEGRADE
ACTIVE
Issued Dec 1, 2021#2561531

FAILURE TO DISPLAY ENERGY EFFICIENCY SCORE AND ENERGY EFFICIENCY GRADE AS PER ADCODE SEC. 28-309.12.3

View this violation's full details & status history →
DOB LegacyEnergy Benchmarking
ACTIVE
Issued Aug 2, 2021#2545205

FAILURE TO FILE BENCHMARKING REPORT OF ENERGY USE AS PER AD. CODE SEC. 28-309.4

View this violation's full details & status history →
DOB LegacyEnergy Benchmarking
ACTIVE
Issued Jun 2, 2021#2535375

FAILURE TO FILE BENCHMARKING REPORT OF ENERGY USE AS PER AD. CODE SEC. 28-309.4

View this violation's full details & status history →

+ 34 more violations on record — view full report

Get the Complete Report for 2433 KNAPP 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 2433 KNAPP ST, Brooklyn built?

The building at 2433 KNAPP ST, Brooklyn, NY 11235 was constructed in 2019. It is classified as a office - fireproof (over 100k sq ft) with 3 floors and 1 unit. The building area is 29,835 sqft.

Are there building permits at 2433 KNAPP ST, Brooklyn?

Yes. 2433 KNAPP ST, Brooklyn, NY 11235 has 33 building permits on record, with 23 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 ENTIRE) filed Apr 26, 2022.

Does 2433 KNAPP ST, Brooklyn have violations?

Yes. 2433 KNAPP ST, Brooklyn, NY 11235 has 37 violations on record, with 3 currently open. Breakdown: 15 DOB, 22 ECB. Sources: NYC DOB, HPD, and ECB/OATH.

Does 2433 KNAPP ST, Brooklyn have docketed judgments?

Yes. 2433 KNAPP ST, Brooklyn, NY 11235 has 4 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 2433 KNAPP ST?

2433 KNAPP ST, Brooklyn, NY 11235 has an assessed market value of $4.9M and a total assessed value of $2.2M (land: $264K). Assessment data is from the NYC Department of Finance (DOF).

When was 2433 KNAPP ST last sold?

2433 KNAPP ST, Brooklyn, NY 11235 last sold for $1.5M on Apr 2, 2015. Sale records are sourced from NYC ACRIS and Department of Finance rolling sales data.

What is the zoning for 2433 KNAPP ST?

2433 KNAPP ST, Brooklyn, NY 11235 is zoned C3. 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 2433 KNAPP ST?

2433 KNAPP ST, Brooklyn, NY 11235 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 2433 KNAPP ST?

Search 2433 KNAPP 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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2433 KNAPP ST, Brooklyn, NY 11235 — Property Records, Permits, Violations, Tax & Zoning | RegWatch