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Manhattan • Office

101 William St

Manhattan, NY 10038Company-ownedBBL 1000670001BIN 1079043
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Updated Aug 1, 2026 · 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 1557 building permits on record (1196 active). There are 399 violations on record (13 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

3,309records 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 3,309 separate government filings — a paper trail nearly as tall as the building itself.

The documentary life of the address leans hard toward permit: 1,557 of its 3,309 records, fully 47%, fall under that one heading. Complaint (504) and inspection (437) trail well behind. 13 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 2000.

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 — 47% 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 3,309 government filings.

Open the live report — daily-updated data, AI chat & alerts
Sources
NYC DOBNYC HPDNYC DOFACRISNYC DCPECB/OATHNYC DEPNYC LPCNYC FDNYNYS DHCRMOCEJFEMAEPAUS CensusHUDUSGS
updated

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

1557 on record · 1196 active
General ConstructionDOB NOW
PERMIT ENTIRE
Filed Jul 20, 2026Job #M01139902-I1
View this permit's full record & inspection history →
General ConstructionDOB NOW
APPROVED
Filed Jul 20, 2026Job #M01139902-P6
View this permit's full record & inspection history →
General ConstructionDOB NOW
PERMIT ENTIRE
Filed Jul 15, 2026Est. cost $260KJob #M01373325-I1
View this permit's full record & inspection history →
General ConstructionDOB NOW
APPROVED
Filed Jul 15, 2026Est. cost $260KJob #M01373325-P1
View this permit's full record & inspection history →
Mechanical SystemsDOB NOW
PERMIT ISSUED
Filed Jun 11, 2026Est. cost $350KJob #M01138176-S2

Renewal Permit with Changes

View this permit's full record & inspection history →

+ 1552 more permits — view full report

Violations

399 on record · 13 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 Oct 4, 2024#39533134K

I OBSERVED SIDEWALK SHED PARAPET PANEL AT EXPOSURE 1 3 & 4 WITH UNLAWFUL POSTING, POSTER (ADVERTISING) UNRELATED TO THE JOBSITE AFFIXED TO THE SIDEWALK SHED ON PROTECTIVE STRUCTURE AS PER CODE 3301.9.7 (NO SIGN

View this violation's full details & status history →
DOB LegacyC
ACTIVE
Issued Sep 5, 2024#2760624

FAILURE TO MAINTAIN BLDG IN CODE COMPLIANT MANNER. TIME OF INSPECTION EXP 1 S ELEV,EXP#1 CRACKS IN BRICK WORK ON MULT FLRS;SPALLED BRICK @ WATER COOLER,BRICK EXP 2 E MISSING SECTION OF BRICK ON SEVERAL FLOORS EXP3 N, MISSING SECTION ON BRICK ON SEVERAL FLORS SPALLING MASONRY CRACK/DAMAGED CONCRETE BEAMS & COLMN.REMEDY REPAIR AND/OR REPLACE

View this violation's full details & status history →
DOB LegacyEGRADE
ACTIVE
Issued Dec 1, 2023#2743852

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 LegacyC
ACTIVE
Issued Aug 31, 2023#2738566

FAILURE TO MAINTAIN BUILDING IN A CODE COMPLIANT MANNER.OBSERVED OPEN MASONRY ON EXPOSURES 3&4 IN MULTIPLE LOCATIONS.REMEDY:FIX AND OR REPLACE

View this violation's full details & status history →

+ 395 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 1557 building permits on record, with 1196 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 Jul 20, 2026.

Does 101 WILLIAM ST, Manhattan have violations?

Yes. 101 WILLIAM ST, Manhattan, NY 10038 has 399 violations on record, with 13 currently open. Breakdown: 273 DOB, 126 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 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