203 North LaSalle
203 N LaSalle St, Chicago, IL 60601
20% provisional source coverage
USE BOUNDARYNot verified · Not dispatch ready
203 North LaSalle is a 27-story Loop office building publicly represented as owned by Sumitomo Corporation of Americas and managed and leased by Transwestern. The building site names Jan Trainor as property manager, but title, parcel identity and all dispatch-critical operating rules remain unverified.
Canonical identity
This Public Seed resolves a working building identity and current-facing owner, manager and leasing relationships. It preserves source-specific area, age and certification conflicts and does not turn transit access, tenant announcements or marketing amenities into operating instructions.
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.
Current-facing management
The property site names Jan Trainor of Transwestern as property manager. The public channel does not establish authority for access, engineering or dispatch.
Property page reviewed August 15, 2026Leasing roles
Eric Myers, Kathleen Bertrand and John Nelson are publicly listed for leasing only; their role must not be expanded into operating authority.
Property and Transwestern sources reviewed August 15, 2026Dispatch state
Direct CTA and Pedway access and listed amenities do not supply entrance hours, dock, freight, COI, contractor, security or reservation rules.
Public-source review completed August 15, 2026Questions this record answers
Each concise answer includes the same caveats shown elsewhere on the page.
01Who manages 203 North LaSalle?+
The current property site names Transwestern and Jan Trainor as property manager. That public role is not a dispatch authorization.
02Who owns the building?+
2024 first-party service-provider releases identify Sumitomo Corporation of Americas as ownership, but deed title and parcel identity were not independently verified.
03Are delivery or freight rules public?+
No current public dock, freight-elevator, move, COI, contractor or visitor procedure was found.
04How can I improve this record?+
Submit a current public handbook, dock guide, move rule or COI package and state whether it may be displayed publicly, used only for verification or retained privately. Contributions enter evidence review.
Explicit unknowns
Anything operationally material that is stale, incomplete, or unconfirmed remains visible here.
- 01Current legal titleholder, Cook County PINs and any separate retail or parking ownership.
- 02Resolution of published 624,724, 624,735 and 625,000-square-foot figures and 1985/1986 year claims.
- 03Current tenant occupancy and suite-level access.
- 04Dock, freight elevator, delivery, work-window, move, COI and contractor procedures.
- 05Visitor, badge, after-hours, reservation, fee, protection, parking, permit and disposal rules.
- 06Current life-safety, emergency, engineering and telecom/riser routes.
Evidence register
Source links are direct. Authority and supported claim groups are stated so readers can inspect the underlying record.
- 01203 North LaSalle management ↗
Current property website · Supports: Address and current-facing Transwestern property-manager contact
- 02203 North LaSalle building profile ↗
Current property website · Supports: Building identity, atrium, transit connection and source-specific modernization claims
- 03Mintel at 203 North LaSalle ↗
Transwestern release dated February 5, 2024 · Supports: Reported Sumitomo ownership, Transwestern relationship and dated tenant claim
- 04Chicago Energy Benchmarking — Covered Buildings ↗
City of Chicago · Supports: Benchmark identity and census source-row attributes