550 West Adams
550 W Adams St, Chicago, IL 60661
73% provisional source coverage
USE BOUNDARYNot verified · Not dispatch ready
550 West Adams is an 18-story office-and-retail building at 550 W Adams St in Chicago, linked to City benchmark ID 101887. USG identifies the address as its North American headquarters. Parcel identity, current recorded title and operating authority remain unverified. It is Graph Mapped, not Verified or Dispatch Ready.
Canonical identity
This Public Seed connects 550 West Adams to its source-scoped Chicago benchmark record, public building facts, first-party USG headquarters evidence and published building-office information while keeping parcel, ownership and authorization boundaries explicit.
Area claims stay separate
Gross, rentable, and office area are not interchangeable. Factum stores each measurement with its source meaning instead of choosing a convenient single number.
What public guidance supports
These are sourced research answers, not permission to enter, reserve, submit, or dispatch. Current affected-party authorization remains required.
Tenant evidence
USG identifies this address as its North American headquarters; the statement does not establish suite, floor, lease term, occupancy level or authority.
USG first-party page reviewed August 17, 2026Ownership boundary
Dated 2023 Macquarie and 2025 Manova reporting is preserved separately. Neither report establishes current recorded title or a complete control chain.
Public sources reviewed August 17, 2026Public hours boundary
Published building hours and a 24/7 lobby-security label are informational and do not authorize entry, delivery, work, dispatch, emergency or safety activity.
Property site reviewed August 17, 2026Questions this record answers
Each concise answer includes the same caveats shown elsewhere on the page.
01What is 550 West Adams?+
It is an 18-story office-and-retail building at 550 W Adams St linked to Chicago benchmark ID 101887.
02Is USG located at 550 West Adams?+
Yes. USG identifies this address as its North American headquarters.
03Do the published hours authorize access or dispatch?+
No. They are public information and do not establish visitor, work, security, emergency or dispatch authority.
Explicit unknowns
Anything operationally material that is stale, incomplete, or unconfirmed remains visible here.
- 01Cook County-verified parcel identity, recorded title, present owner/control chain and exact legal manager/operator role.
- 02Complete current tenant roster, suite and floor assignments, occupancy, vacancy and visitor policy.
- 03Address-specific permits, life-safety status, loading, receiving, delivery, emergency and work rules.
Evidence register
Source links are direct. Authority and supported claim groups are stated so readers can inspect the underlying record.
- 01City of Chicago 2023 benchmark row 101887 ↗
City of Chicago government data reviewed August 17, 2026 · Supports: Benchmark ID, office use, area and year-built reporting context
- 02550 West Adams property site ↗
Current public property source reviewed August 17, 2026 · Supports: Building identity, public areas, tenant marketing and building-office information
- 03USG locations ↗
USG first-party source reviewed August 17, 2026 · Supports: USG North American headquarters at the address
- 04Stream Realty Partners 2023 announcement ↗
First-party brokerage announcement reviewed August 17, 2026 · Supports: Dated leasing assignment, historical ownership statement and building facts
Public change history
Only meaningful, accepted public deltas appear here. The current record above remains canonical.
550 West Adams
550 West Adams was added as a Public Seed with Chicago benchmark, building and USG headquarters evidence, explicit ownership boundaries, and non-authorizing public-hours context.