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Manhattan • Office

366 Madison Ave

Manhattan, NY 10017Company-ownedBBL 1012810056BIN 1035394
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16 sources

Year Built1921
Floors15
Units16
Building Area84,518 sqft
ZoningC5-3
ClassO6
Market Value$33.9M

366 MADISON AVE is a property located at 366 MADISON AVE, Manhattan, NY 10017. It is classified as a office - loft/mixed use. The building was constructed in 1921. It has 15 floors and 16 units. The building area is 84,518 square feet on a 6,025 sqft lot. The property is zoned C5-3. The assessed market value is $33.9M. It last sold for $50M on Oct 21, 2025. Public records list the property as company-owned. There are 425 building permits on record (254 active). There are 129 violations on record (27 currently open). 23 docketed judgments carrying $6,650 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

842records on file
69Energy Star

Completed in 1921, 366 Madison Ave rises 15 stories over New York. Public records put it at 16 units and 84,518 square feet of floor area, on land zoned C5-3. It is carried on the public rolls at a market value of $33.9M, and assessed for tax at $15.3M. In the 56 years its record reaches back, the lot has drawn 842 separate government filings — a paper trail nearly as tall as the building itself.

The documentary life of the address leans hard toward permit: 425 of its 842 records, fully 50%, fall under that one heading. Violation (129) and enforcement (107) trail well behind. 27 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 2018.

On the environmental ledger, the building posts an Energy Star score of 69, with a site energy-use intensity of 69.8 kBtu per square foot. Its operations answer for roughly 704 metric tons of CO2-equivalent a year.

Read together — 50% permit, 56 years of accumulation, a parcel of New York — these scattered records compose a portrait of the address that no single page sets out to draw.

$33.9M of New York, written across 842 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

Address366 MADISON AVE, Manhattan, NY 10017
Building TypeOffice - Loft/Mixed Use
O6
Year Built1921
Floors15
Total Units16
Building Area84,518 sqft
Lot Size6,025 sqft
ZoningC5-3
1012810056
1035394
OwnershipCompany-owned

Assessment & Sales

$33.9M
$15.3M
$3.1M
$50M
Last Sale DateOct 21, 2025

Building Permits

425 on record · 254 active
General ConstructionDOB NOW
APPROVED
Filed Oct 22, 2026Est. cost $50KJob #M01476231-I1
View this permit's full record & inspection history →
ElevatorDOB NOW
PERMIT ENTIRE
Filed Oct 16, 2026Job #M01473001-I1
View this permit's full record & inspection history →
General ConstructionDOB NOW
PERMIT ENTIRE
Filed Oct 1, 2026Est. cost $5KJob #M01333871-I1
View this permit's full record & inspection history →
General ConstructionDOB NOW
LOC ISSUED
Filed Oct 1, 2026Est. cost $30KJob #M01397758-I1
View this permit's full record & inspection history →
General ConstructionDOB NOW
APPROVED
Filed Oct 1, 2026Est. cost $5KJob #M01333871-P2
View this permit's full record & inspection history →

+ 420 more permits — view full report

Violations

129 on record · 27 open
Open judgment balance — docketed OATH judgments$6,650
Judgments · 23 docketed
FDNY summons (OATH)JUDGMENT DOCKETED
Docketed Apr 30, 2026Balance $3,000Ticket #014188445X
SIGN, POSTINGS, NOTICES AND INSTRUCTIONS
DEP summons (OATH)JUDGMENT DOCKETED
Docketed Apr 30, 2026Balance $1,300Ticket #000940087J
IDLING OF MOTOR VEHICLE ENGINE MORE THAN THREE MINUTES 1ST OFF
FDNY summons (OATH)JUDGMENT DOCKETED
Docketed Jan 31, 2026Balance $1,500Ticket #014149778M
INSPECTION AND TESTING
FDNY summons (OATH)JUDGMENT DOCKETED
Docketed Aug 31, 2025Ticket #014136237R
EMERGENCY PLANNING AND PREPAREDNESS
FDNY summons (OATH)JUDGMENT DOCKETED
Docketed Apr 30, 2025Ticket #014123591R
INSPECTION AND TESTING

+ 18 more docketed judgments — view full report

SafetyElevator
ACTIVE
Issued Oct 2, 2026#VIO-FTF-VT-CAT1-202512-0002476

Violation Issued-Failure To File 2025 Cat1 Test Report

View this violation's full details & status history →
SafetyElevator
ACTIVE
Issued Oct 2, 2026#VIO-FTF-VT-PER-202512-0002983

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-CAT1-202512-0004591

Violation Issued-Failure To File 2025 Cat1 Test Report

View this violation's full details & status history →
SafetyEnergy Benchmarking
ACTIVE
Issued Sep 25, 2026#VIO-DQ-EN-BENCH-202608-0166163

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 Nov 14, 2025#2795789

VIOLATION ISSUED-FAILURE TO FILE 2024 EXTERNAL HGH PRESSURE INSPECTION

View this violation's full details & status history →

+ 124 more violations on record — view full report

Get the Complete Report for 366 MADISON 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 366 MADISON AVE, Manhattan built?

The building at 366 MADISON AVE, Manhattan, NY 10017 was constructed in 1921. It is classified as a office - loft/mixed use with 15 floors and 16 units. The building area is 84,518 sqft.

Are there building permits at 366 MADISON AVE, Manhattan?

Yes. 366 MADISON AVE, Manhattan, NY 10017 has 425 building permits on record, with 254 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 (APPROVED) filed Oct 22, 2026.

Does 366 MADISON AVE, Manhattan have violations?

Yes. 366 MADISON AVE, Manhattan, NY 10017 has 129 violations on record, with 27 currently open. Breakdown: 24 DOB Safety, 85 DOB, 20 ECB. Sources: NYC DOB, HPD, and ECB/OATH.

Does 366 MADISON AVE, Manhattan have docketed judgments?

Yes. 366 MADISON AVE, Manhattan, NY 10017 has 23 docketed judgments on record with the NYC Office of Administrative Trials & Hearings (OATH), with an open balance of $6,650. 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 366 MADISON AVE?

366 MADISON AVE, Manhattan, NY 10017 has an assessed market value of $33.9M and a total assessed value of $15.3M (land: $3.1M). Assessment data is from the NYC Department of Finance (DOF).

When was 366 MADISON AVE last sold?

366 MADISON AVE, Manhattan, NY 10017 last sold for $50M on Oct 21, 2025. Sale records are sourced from NYC ACRIS and Department of Finance rolling sales data.

What is the zoning for 366 MADISON AVE?

366 MADISON AVE, Manhattan, NY 10017 is zoned C5-3. 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 366 MADISON AVE?

366 MADISON AVE, Manhattan, NY 10017 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 366 MADISON AVE?

Search 366 MADISON 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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366 MADISON AVE, Manhattan, NY 10017 — Property Records, Permits, Violations, Tax & Zoning | RegWatch