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Bronx • Warehouse

400 Walnut Ave

Bronx, NY 10454Individually ownedBBL 2025990089BIN 2004053
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Updated Aug 1, 2026 · 16 sources

Year Built1956
Floors1
Units1
Building Area237,000 sqft
ZoningM3-1
ClassE1
Market Value$13.7M

400 WALNUT AVE is a property located at 400 WALNUT AVE, Bronx, NY 10454. It is classified as a warehouse - fireproof. The building was constructed in 1956. It has 1 floor and 1 unit. The building area is 237,000 square feet on a 482,323 sqft lot. The property is zoned M3-1. The assessed market value is $13.7M. Public records list the property as individually owned. There are 125 building permits on record (74 active). There are 59 violations on record (29 currently open). 18 docketed judgments carrying $12,327 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

408records on file
1Energy Star

Completed in 1956, 400 Walnut Ave rises 1 story over Bronx. Public records put it at 1 unit and 237,000 square feet of floor area, on land zoned M3-1. It is carried on the public rolls at a market value of $13.7M, and assessed for tax at $6.2M. In the 59 years its record reaches back, the lot has drawn 408 separate government filings.

The documentary life of the address leans hard toward permit: 125 of its 408 records, fully 31%, fall under that one heading. Inspection (101) and enforcement (72) trail well behind. 29 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 2014.

On the environmental ledger, the building posts an Energy Star score of 1, with a site energy-use intensity of 149.7 kBtu per square foot. Its operations answer for roughly 2,356 metric tons of CO2-equivalent a year.

Read together — 31% permit, 59 years of accumulation, a parcel of Bronx — these scattered records compose a portrait of the address that no single page sets out to draw.

$13.7M of Bronx, written across 408 government filings.

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

Property Details

Address400 WALNUT AVE, Bronx, NY 10454
Building TypeWarehouse - Fireproof
E1
Year Built1956
Floors1
Total Units1
Building Area237,000 sqft
Lot Size482,323 sqft
ZoningM3-1
2025990089
2004053
OwnershipIndividually owned

Assessment & Sales

$13.7M
$6.2M
$3.2M

Building Permits

125 on record · 74 active
General ConstructionDOB NOW
LOC ISSUED
Filed May 18, 2026Est. cost $64KJob #X01346325-I1
View this permit's full record & inspection history →
General ConstructionDOB NOW
SIGNED-OFF
Filed Apr 14, 2026Est. cost $1.5MJob #X01352916-I1

Initial Permit

View this permit's full record & inspection history →
General ConstructionDOB NOW
PERMIT ENTIRE
Filed Apr 14, 2026Est. cost $1.5MJob #X01352916-I1
View this permit's full record & inspection history →
Mechanical SystemsDOB NOW
SIGNED-OFF
Filed Mar 4, 2026Est. cost $64KJob #X01346325-I1

Initial Permit

View this permit's full record & inspection history →
General ConstructionDOB NOW
LOC ISSUED
Filed May 24, 2024Est. cost $5KJob #X00857544-I1
View this permit's full record & inspection history →

+ 120 more permits — view full report

Violations

59 on record · 29 open
Open judgment balance — docketed OATH judgments$12,327
Judgments · 18 docketed
FDNY summons (OATH)JUDGMENT DOCKETED
Docketed Jan 31, 2025Ticket #012155275Z
FIRE PROTECTION SYSTEMS:FAIL TO PREVENT UNNECESSARY UNWARRANTED ALARMS
Sanitation summons (OATH)JUDGMENT DOCKETED
Docketed Oct 31, 2023Balance $23Ticket #047831217L
FAILURE TO POST PRIVATE CARTER STICKER ORGANICS 1ST
Sanitation summons (OATH)JUDGMENT DOCKETED
Docketed Oct 31, 2023Balance $9Ticket #047831219P
FAILURE TO POST SIGNAGE SOURCE SEPARATION 1ST
Sanitation summons (OATH)JUDGMENT DOCKETED
Docketed Oct 31, 2023Balance $9Ticket #047831220M
UNLABELED RECYCLING CONTAINER OWNER LESSEE SOURCE SEP 1ST
Sanitation summons (OATH)JUDGMENT DOCKETED
Docketed Oct 31, 2023Balance $9Ticket #047831221Y
FAILURE TO POST SIGNAGE IN STORAGE AREA SOURCE SEP 1ST

+ 13 more docketed judgments — view full report

DOB LegacyEnergy Benchmarking
ACTIVE
Issued Aug 2, 2024#2759697

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 LegacyEARCX
ACTIVE
Issued Jun 23, 2024#2756505

FAILURE TO SUBMIT AN EER PER AD. CODE SEC. 28-308.4 - MULTIPLE YEARS (2023)

View this violation's full details & status history →
DOB LegacyEnergy Benchmarking
ACTIVE
Issued May 2, 2024#2753007

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 LegacyHBLVIO
ACTIVE
Issued Jun 20, 2023#2643164

VIOLATION ISSUED-FAILURE TO FILE 2018 EXTERNAL HGH PRESSURE INSPECTION

View this violation's full details & status history →
DOB LegacyHBLVIO
ACTIVE
Issued Jun 20, 2023#2643165

VIOLATION ISSUED-FAILURE TO FILE 2018 EXTERNAL HGH PRESSURE INSPECTION

View this violation's full details & status history →

+ 54 more violations on record — view full report

Get the Complete Report for 400 WALNUT 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 400 WALNUT AVE, Bronx built?

The building at 400 WALNUT AVE, Bronx, NY 10454 was constructed in 1956. It is classified as a warehouse - fireproof with 1 floor and 1 unit. The building area is 237,000 sqft.

Are there building permits at 400 WALNUT AVE, Bronx?

Yes. 400 WALNUT AVE, Bronx, NY 10454 has 125 building permits on record, with 74 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 (LOC ISSUED) filed May 18, 2026.

Does 400 WALNUT AVE, Bronx have violations?

Yes. 400 WALNUT AVE, Bronx, NY 10454 has 59 violations on record, with 29 currently open. Breakdown: 52 DOB, 7 ECB. Sources: NYC DOB, HPD, and ECB/OATH.

Does 400 WALNUT AVE, Bronx have docketed judgments?

Yes. 400 WALNUT AVE, Bronx, NY 10454 has 18 docketed judgments on record with the NYC Office of Administrative Trials & Hearings (OATH), with an open balance of $12,327. 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 400 WALNUT AVE?

400 WALNUT AVE, Bronx, NY 10454 has an assessed market value of $13.7M and a total assessed value of $6.2M (land: $3.2M). Assessment data is from the NYC Department of Finance (DOF).

What is the zoning for 400 WALNUT AVE?

400 WALNUT AVE, Bronx, NY 10454 is zoned M3-1. 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 400 WALNUT AVE?

400 WALNUT AVE, Bronx, NY 10454 is individually 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 400 WALNUT AVE?

Search 400 WALNUT 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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400 WALNUT AVE, Bronx, NY 10454 — Property Records, Permits, Violations, Tax & Zoning | RegWatch