Bronx • Warehouse

400 Walnut Ave

Bronx, NY 10454Individually ownedBBL 2025990089BIN 2004053

Updated Sep 15, 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 132 building permits on record (74 active). There are 66 violations on record (35 currently open). 18 docketed judgments carrying $12,277 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

418records 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 418 separate government filings.

The documentary life of the address leans hard toward permit: 132 of its 418 records, fully 32%, fall under that one heading. Inspection (97) and enforcement (72) trail well behind. 35 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 — 32% 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 418 government filings.

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

132 on record · 74 active
General ConstructionDOB NOW
LOC ISSUED
Filed May 18, 2026Est. cost $64KJob #X01346325-I1
General ConstructionDOB NOW
SIGNED-OFF
Filed Apr 14, 2026Est. cost $1.5MJob #X01352916-I1
General ConstructionDOB NOW
PERMIT ENTIRE
Filed Apr 14, 2026Est. cost $1.5MJob #X01352916-I1
Mechanical SystemsDOB NOW
SIGNED-OFF
Filed Mar 4, 2026Est. cost $64KJob #X01346325-I1
General ConstructionDOB NOW
LOC ISSUED
Filed May 24, 2024Est. cost $5KJob #X00857544-I1

+ 127 more permitsview full report

Violations

66 on record · 35 open
Open judgment balance — docketed OATH judgments$12,277
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, 2023Ticket #047831217L
FAILURE TO POST PRIVATE CARTER STICKER ORGANICS 1ST
Sanitation summons (OATH)JUDGMENT DOCKETED
Docketed Oct 31, 2023Ticket #047831219P
FAILURE TO POST SIGNAGE SOURCE SEPARATION 1ST
Sanitation summons (OATH)JUDGMENT DOCKETED
Docketed Oct 31, 2023Ticket #047831220M
UNLABELED RECYCLING CONTAINER OWNER LESSEE SOURCE SEP 1ST
Sanitation summons (OATH)JUDGMENT DOCKETED
Docketed Oct 31, 2023Ticket #047831221Y
FAILURE TO POST SIGNAGE IN STORAGE AREA SOURCE SEP 1ST

+ 13 more docketed judgmentsview full report

SafetyEnergy Benchmarking
ACTIVE
Issued Jun 22, 2026#VIO-FTF-EN-BENCH-202605-0161992

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

View this violation's full details & status history →
SafetyEnergy Benchmarking
ACTIVE
Issued Mar 6, 2026#VIO-FTF-EN-BENCH-202602-0156890

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

View this violation's full details & status history →
SafetyEnergy Benchmarking
ACTIVE
Issued Dec 3, 2025#VIO-FTF-EN-BENCH-202511-0155569

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

View this violation's full details & status history →
SafetyEnergy Benchmarking
ACTIVE
Issued Sep 26, 2025#VIO-FTF-EN-BENCH-202508-0121838

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

View this violation's full details & status history →
SafetyEnergy Benchmarking
ACTIVE
Issued Feb 28, 2025#VIO-FTF-EN-BENCH-202502-0084483

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

View this violation's full details & status history →

+ 61 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 132 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 66 violations on record, with 35 currently open. Breakdown: 7 DOB Safety, 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 $12,277. 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