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Manhattan • Office

101 William St

Manhattan, NY 10038Company-ownedBBL 1000670001BIN 1079043
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16 sources

Year Built1965
Floors44
Units57
Building Area1,073,000 sqft
ZoningC5-5
ClassO4
Market Value$220.1M

101 WILLIAM ST is a property located at 101 WILLIAM ST, Manhattan, NY 10038. It is classified as a office - semi-fireproof (small). The building was constructed in 1965. It has 44 floors and 57 units. The building area is 1,073,000 square feet on a 59,391 sqft lot. The property is zoned C5-5. The assessed market value is $220.1M. Public records list the property as company-owned. There are 2004 building permits on record (1552 active). There are 425 violations on record (22 currently open). 46 docketed judgments carrying $13,999 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

3,524records on file
71Energy Star

Completed in 1965, 101 William St rises 44 stories over New York. Public records put it at 57 units and 1,073,000 square feet of floor area, on land zoned C5-5. It is carried on the public rolls at a market value of $220M, and assessed for tax at $99.0M. In the 45 years its record reaches back, the lot has drawn 3,524 separate government filings — a paper trail nearly as tall as the building itself.

The documentary life of the address leans hard toward permit: 2,004 of its 3,524 records, fully 57%, fall under that one heading. Complaint (520) and violation (425) trail well behind. 22 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 2025.

On the environmental ledger, the building posts an Energy Star score of 71, with a site energy-use intensity of 89.5 kBtu per square foot. Its operations answer for roughly 8,752 metric tons of CO2-equivalent a year.

Read together — 57% permit, 45 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.

$220M of New York, written across 3,524 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
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Property Details

Address101 WILLIAM ST, Manhattan, NY 10038
Building TypeOffice - Semi-Fireproof (small)
O4
Year Built1965
Floors44
Total Units57
Building Area1,073,000 sqft
Lot Size59,391 sqft
ZoningC5-5
1000670001
1079043
OwnershipCompany-owned

Assessment & Sales

$220.1M
$99M
$31.2M

Building Permits

2004 on record · 1552 active
Minor WorkDOB NOW
AHV PERMIT ISSUED
Filed Nov 5, 2026Job #M1665179
View this permit's full record & inspection history →
Minor WorkDOB NOW
AHV PERMIT ISSUED
Filed Oct 29, 2026Job #M5010253
View this permit's full record & inspection history →
General ConstructionDOB NOW
LOC ISSUED
Filed Oct 23, 2026Est. cost $84KJob #M00736908-I1
View this permit's full record & inspection history →
Minor WorkDOB NOW
AHV PERMIT ISSUED
Filed Oct 22, 2026Job #M4118785
View this permit's full record & inspection history →
General ConstructionDOB NOW
PERMIT ENTIRE
Filed Oct 20, 2026Est. cost $1Job #M00959301-I1
View this permit's full record & inspection history →

+ 1999 more permits — view full report

Violations

425 on record · 22 open
Open judgment balance — docketed OATH judgments$13,999
Judgments · 46 docketed
DEP summons (OATH)JUDGMENT DOCKETED
Docketed Feb 28, 2026Balance $1,300Ticket #000893215X
IDLING OF MOTOR VEHICLE ENGINE MORE THAN THREE MINUTES 1ST OFF
DOB summons (OATH)JUDGMENT DOCKETED
Docketed Nov 30, 2024Balance $5,000Ticket #039528992K
FAILED TO ENSURE WORKERS RECEIVE SITE SAFETY ORIENTATION OR REFRESHER
DOB summons (OATH)JUDGMENT DOCKETED
Docketed Nov 30, 2024Balance $2,400Ticket #039528995X
PEDESTRAIN PROTECTION DOES NOT MEET CODE SPECIFICATIONS
DOB summons (OATH)JUDGMENT DOCKETED
Docketed Nov 30, 2024Ticket #039528996H
FAILURE TO MAINTAIN DISPLAY ON SITE DOCUMENTS REQUIRED BY BC CHAPTER33
FDNY summons (OATH)JUDGMENT DOCKETED
Docketed Aug 31, 2025Balance $1,500Ticket #014113992Z
ELECTRICAL LIGHTING HAZARDS

+ 41 more docketed judgments — view full report

ECBConstruction
ACTIVE
Issued Sep 21, 2026#39205373P

EQUIPMENT USER NEW ROC FAILED TO MAINTAIN COMPLETE/ACCURATE REQUIRED DOCUMENTS/LOGS FOR THE MAST CLIMBERS ON SITE. PRE-SHIFT INSP. DOCUMENTS CONTAINED INCORRECT SERIAL #'S THAT DID NOT CORRESPOND WITH CN#11225,

View this violation's full details & status history →
ECBConstruction
ACTIVE
Issued Sep 21, 2026#39205380N

EQUIPMENT USER NEW ROC FAILED TO MAINTAIN COMPLETE/ACCURATE REQUIRED DOCUMENTS/LOGS FOR THE MAST CLIMBERS ON SITE. PRE-SHIFT INSP. DOCUMENTS CONTAINED INCORRECT SERIAL #'S THAT DID NOT CORRESPOND WITH CN#11425,

View this violation's full details & status history →
ECBConstruction
ACTIVE
Issued Sep 21, 2026#39205396H

EQUIPMENT USER NEW ROC FAILED TO MAINTAIN COMPLETE/ACCURATE MAST CLIMBER DOCUMENTS/LOGS. PRESHIFT INSP. RECORDS FOR CN117/25, CD5824 POS. 9 CONTAINED INCORRECT SERIAL #S. REQUIRED LOGS, INCL. USER INFO, PREINST

View this violation's full details & status history →
ECBConstruction
ACTIVE
Issued Sep 21, 2026#39205387X

EQUIPMENT USER NEW ROC FAILED TO MAINTAIN COMPLETE/ACCURATE MAST CLIMBER DOCUMENTS/LOGS. PRESHIFT INSP. RECORDS FOR CN#11625, CD#5908, POS. 8 CONTAINED INCORRECT SERIAL #S. REQUIRED LOGS, INCL. USER INFO, PREIN

View this violation's full details & status history →
ECBConstruction
ACTIVE
Issued Sep 21, 2026#39205367Z

EQUIPMENT USER NEW ROC FAILED TO MAINTAIN COMPLETE/ACCURATE REQUIRED DOCUMENTS/LOGS FOR THE MAST CLIMBERS ON SITE. PRE-SHIFT INSP. DOCUMENTS CONTAINED INCORRECT SERIAL #'S THAT DID NOT CORRESPOND WITH CN#10925,

View this violation's full details & status history →

+ 420 more violations on record — view full report

Get the Complete Report for 101 WILLIAM 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 101 WILLIAM ST, Manhattan built?

The building at 101 WILLIAM ST, Manhattan, NY 10038 was constructed in 1965. It is classified as a office - semi-fireproof (small) with 44 floors and 57 units. The building area is 1,073,000 sqft.

Are there building permits at 101 WILLIAM ST, Manhattan?

Yes. 101 WILLIAM ST, Manhattan, NY 10038 has 2004 building permits on record, with 1552 currently active. Permits are sourced from the NYC Department of Buildings (DOB Legacy and DOB NOW systems). The most recent permit is a Minor Work (AHV PERMIT ISSUED) filed Nov 5, 2026.

Does 101 WILLIAM ST, Manhattan have violations?

Yes. 101 WILLIAM ST, Manhattan, NY 10038 has 425 violations on record, with 22 currently open. Breakdown: 17 DOB Safety, 273 DOB, 135 ECB. Sources: NYC DOB, HPD, and ECB/OATH.

Does 101 WILLIAM ST, Manhattan have docketed judgments?

Yes. 101 WILLIAM ST, Manhattan, NY 10038 has 46 docketed judgments on record with the NYC Office of Administrative Trials & Hearings (OATH), with an open balance of $13,999. 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 101 WILLIAM ST?

101 WILLIAM ST, Manhattan, NY 10038 has an assessed market value of $220.1M and a total assessed value of $99M (land: $31.2M). Assessment data is from the NYC Department of Finance (DOF).

What is the zoning for 101 WILLIAM ST?

101 WILLIAM ST, Manhattan, NY 10038 is zoned C5-5. 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 101 WILLIAM ST?

101 WILLIAM ST, Manhattan, NY 10038 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 101 WILLIAM ST?

Search 101 WILLIAM 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 ($15, one-time) adds the complete title history, owner contacts, and a downloadable PDF.

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101 WILLIAM ST, Manhattan, NY 10038 — Property Records, Permits, Violations, Tax & Zoning | RegWatch