100 North Riverside Plaza
100 N Riverside Plz, Chicago, IL 60606
70% provisional source coverage
USE BOUNDARYNot verified · Not dispatch ready
100 North Riverside Plaza is a Chicago office tower at 100 N Riverside Plz. A March 2026 industry report describes a 36-story tower, a leasehold acquired by Hines and The Stahl Organization, underlying land controlled by Stahl through a ground lease, and Boeing remaining as a tenant. These are source-attributed reports, not title or management verification. It is Graph Mapped, not Verified or Dispatch Ready.
Canonical identity
This Public Seed keeps leasehold, underlying-land control, property-site branding, and legal title distinct. It does not infer ownership, management, access authority, or dispatch permission.
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.
Leasehold and land-control reporting
Current reporting distinguishes the acquired building leasehold from the underlying land interest. Neither is treated as authoritative legal-title evidence.
Industry report dated March 25, 2026Public contacts
The property website lists Brian Atkinson and Sadie Boscolo for leasing inquiries. These contacts do not establish operational authority.
Property site reviewed August 17, 2026Questions this record answers
Each concise answer includes the same caveats shown elsewhere on the page.
01What is 100 North Riverside Plaza?+
It is a Chicago office tower at 100 N Riverside Plz, also publicly known as the Boeing International Headquarters.
02Who owns or manages it?+
Current reporting describes a Hines-Stahl leasehold acquisition and a separate Stahl ground-lease interest. Legal title and the current manager/operator were not established.
03Can this record authorize access or dispatch?+
No. No authoritative access, safety, work-authorization, or dispatch rules were established.
04How can I correct or enrich this record?+
Submit an authoritative public link or dated document, identify the exact field and proposed value, and state the source date and submitter relationship. Submissions are reviewed before any canonical change.
Explicit unknowns
Anything operationally material that is stale, incomplete, or unconfirmed remains visible here.
- 01Cook County PIN, parcel geometry, legal description, and current legal title holder.
- 02Current property manager or building operator.
- 03Complete tenant roster and authoritative access, safety, emergency, work-authorization, and dispatch rules.
Evidence register
Source links are direct. Authority and supported claim groups are stated so readers can inspect the underlying record.
- 01100 North Riverside Plaza property website ↗
Building-branded public source, reviewed August 17, 2026 · Supports: Address, public leasing contacts, and Hines site branding
- 02CoStar transaction report ↗
Industry report dated March 25, 2026; not a title record · Supports: Stories, reported leasehold transaction, reported ground-lease relationship, and Boeing tenancy
- 03City of Chicago covered-buildings record ↗
City of Chicago public dataset, read August 17, 2026 · Supports: Benchmark identity, address, current coordinates, cohort, and verification year
- 04City of Chicago 2023 benchmarking record ↗
City of Chicago public dataset, read August 17, 2026 · Supports: Source-reported construction year, property type, and gross floor area
Public change history
Only meaningful, accepted public deltas appear here. The current record above remains canonical.
100 North Riverside Plaza
100 North Riverside Plaza was added as a Public Seed with source-qualified identity, physical, leasehold, land-control, tenant, and leasing-contact evidence.