Manhattan • Office

123 William St

Manhattan, NY 10038Company-ownedBBL 1000780004BIN 1079063
Year Built1912
Floors26
Units41
Building Area493,039 sqft
ZoningC6-4
ClassO4
Market Value$99.3M

123 WILLIAM ST is a property located at 123 WILLIAM ST, Manhattan, NY 10038. It is classified as a office - semi-fireproof (small). The building was constructed in 1912. It has 26 floors and 41 units. The building area is 493,039 square feet on a 21,242 sqft lot. The property is zoned C6-4. The assessed market value is $99.3M. It last sold for $253M on Mar 27, 2015. Public records list the property as company-owned. There are 841 building permits on record (589 active). There are 309 violations on record (22 currently open). 34 docketed judgments carrying $13,830 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

1,560records on file
83Energy Star

Completed in 1912, 123 William St rises 26 stories over New York. Public records put it at 41 units and 493,039 square feet of floor area, on land zoned C6-4. It is carried on the public rolls at a market value of $99.3M, and assessed for tax at $44.7M. In the 59 years its record reaches back, the lot has drawn 1,560 separate government filings — a paper trail nearly as tall as the building itself.

The documentary life of the address leans hard toward permit: 841 of its 1,560 records, fully 54%, fall under that one heading. Violation (309) and enforcement (154) 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 2014.

On the environmental ledger, the building posts an Energy Star score of 83, with a site energy-use intensity of 55.9 kBtu per square foot. Its operations answer for roughly 2,672 metric tons of CO2-equivalent a year.

Read together — 54% permit, 59 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.

$99.3M of New York, written across 1,560 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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Property Details

Address123 WILLIAM ST, Manhattan, NY 10038
Building TypeOffice - Semi-Fireproof (small)
O4
Year Built1912
Floors26
Total Units41
Building Area493,039 sqft
Lot Size21,242 sqft
ZoningC6-4
1000780004
1079063
OwnershipCompany-owned

Assessment & Sales

$99.3M
$44.7M
$8.6M
$253M
Last Sale DateMar 27, 2015

Building Permits

841 on record · 589 active
General ConstructionDOB NOW
LOC ISSUED
Filed Oct 20, 2026Est. cost $69KJob #M01252040-I1
General ConstructionDOB NOW
APPROVED
Filed Aug 6, 2026Est. cost $69KJob #M01252040-P1
General ConstructionDOB NOW
LOC ISSUED
Filed Aug 3, 2026Est. cost $38KJob #M01252062-I1
ElectricalDOB NOW
APPROVED
Filed Jun 10, 2026Job #M01320603-P1
General ConstructionDOB NOW
APPROVED
Filed May 7, 2026Est. cost $38KJob #M01252062-P1

+ 836 more permits — view full report

Violations

309 on record · 22 open
Open judgment balance — docketed OATH judgments$13,830
Judgments · 34 docketed
FDNY summons (OATH)JUDGMENT DOCKETED
Docketed Sep 30, 2026Balance $5,000Ticket #012181434X
FIRE PROTECTION SYSTEMS:FAIL TO PREVENT UNNECESSARY UNWARRANTED ALARMS
FDNY summons (OATH)JUDGMENT DOCKETED
Docketed Jun 30, 2026Balance $1,075Ticket #014229112X
CERTIFICATES OF FITNESS AND CERTIFICATES OF QUALIFICATION
FDNY summons (OATH)JUDGMENT DOCKETED
Docketed May 31, 2026Balance $935Ticket #012175009Y
FIRE PROTECTION SYSTEMS:FAIL TO PREVENT UNNECESSARY UNWARRANTED ALARMS
FDNY summons (OATH)JUDGMENT DOCKETED
Docketed Mar 31, 2026Balance $2,375Ticket #014211837H
FIRE PROTECTION SYSTEMS
FDNY summons (OATH)JUDGMENT DOCKETED
Docketed Nov 30, 2025Balance $935Ticket #012166738J
FIRE PROTECTION SYSTEMS:FAIL TO PREVENT UNNECESSARY UNWARRANTED ALARMS

+ 29 more docketed judgments — view full report

SafetyGas Piping Ll152
ACTIVE
Issued Jan 8, 2026#VIO-FTF-PL-PER-202412-0181613

Cycle 2, Sub-cycle A (premises is in Community District 1)

View this violation's full details & status history →
SafetyElevator
ACTIVE
Issued Sep 11, 2024#VIO-FTF-VT-PER-202312-0001528

Violation Issued-Failure To File 2023 Periodic Inspection Report

View this violation's full details & status history →
SafetyElevator
ACTIVE
Issued Sep 11, 2024#VIO-FTF-VT-PER-202312-0001538

Violation Issued-Failure To File 2023 Periodic Inspection Report

View this violation's full details & status history →
SafetyElevator
ACTIVE
Issued Sep 11, 2024#VIO-FTF-VT-PER-202312-0001532

Violation Issued-Failure To File 2023 Periodic Inspection Report

View this violation's full details & status history →
SafetyElevator
ACTIVE
Issued Sep 11, 2024#VIO-FTF-VT-PER-202312-0001533

Violation Issued-Failure To File 2023 Periodic Inspection Report

View this violation's full details & status history →

+ 304 more violations on record — view full report

Get the Complete Report for 123 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 123 WILLIAM ST, Manhattan built?

The building at 123 WILLIAM ST, Manhattan, NY 10038 was constructed in 1912. It is classified as a office - semi-fireproof (small) with 26 floors and 41 units. The building area is 493,039 sqft.

Are there building permits at 123 WILLIAM ST, Manhattan?

Yes. 123 WILLIAM ST, Manhattan, NY 10038 has 841 building permits on record, with 589 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 Oct 20, 2026.

Does 123 WILLIAM ST, Manhattan have violations?

Yes. 123 WILLIAM ST, Manhattan, NY 10038 has 309 violations on record, with 22 currently open. Breakdown: 19 DOB Safety, 246 DOB, 44 ECB. Sources: NYC DOB, HPD, and ECB/OATH.

Does 123 WILLIAM ST, Manhattan have docketed judgments?

Yes. 123 WILLIAM ST, Manhattan, NY 10038 has 34 docketed judgments on record with the NYC Office of Administrative Trials & Hearings (OATH), with an open balance of $13,830. 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 123 WILLIAM ST?

123 WILLIAM ST, Manhattan, NY 10038 has an assessed market value of $99.3M and a total assessed value of $44.7M (land: $8.6M). Assessment data is from the NYC Department of Finance (DOF).

When was 123 WILLIAM ST last sold?

123 WILLIAM ST, Manhattan, NY 10038 last sold for $253M on Mar 27, 2015. Sale records are sourced from NYC ACRIS and Department of Finance rolling sales data.

What is the zoning for 123 WILLIAM ST?

123 WILLIAM ST, Manhattan, NY 10038 is zoned C6-4. 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 123 WILLIAM ST?

123 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 123 WILLIAM ST?

Search 123 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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123 WILLIAM ST, Manhattan, NY 10038 — Property Records, Permits, Violations, Tax & Zoning | RegWatch