640 North LaSalle — office building
640 N LaSalle St, Chicago, IL 60654
50% provisional source coverage
USE BOUNDARYNot verified · Not dispatch ready
640 North LaSalle — office building is a office building at 640 N LaSalle St, Chicago, IL 60654 associated with Chicago benchmark ID 103766. It is Graph Mapped as a Public Seed, not Verified or Dispatch Ready.
Canonical identity
640 North LaSalle was added as an office-building Public Seed with property-site facts kept source-scoped; retail, parking, rooftop, tenant, parcel and authority boundaries remain 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.
Physical identity
The current property site identifies 640 North LaSalle as a River North office building.
Source reviewed August 18, 2026Published role
The property site labels the asset owned and managed by Mac Management; this is not recorded-title or action-authority evidence.
Source reviewed August 18, 2026Component boundary
Office, retail, parking, rooftop, tenants, parcels and adjacent assets remain separately scoped.
Boundary reviewed August 18, 2026Questions this record answers
Each concise answer includes the same caveats shown elsewhere on the page.
01What is 640 North LaSalle — office building?+
640 North LaSalle — office building is a office building at 640 N LaSalle St, Chicago, IL 60654 associated with Chicago benchmark ID 103766. It is Graph Mapped as a Public Seed, not Verified or Dispatch Ready.
02Is 640 North LaSalle — office building ready for dispatch?+
No. It is a Public Seed and Graph Mapped, not Verified or Dispatch Ready.
03What remains unknown about 640 North LaSalle — office building?+
Authoritative parcel/PIN, legal address, recorded title and control chain. Legal relationships among office, retail, parking, rooftop and tenant scopes. Current occupancy, permits, life-safety status and all access or dispatch rules.
Explicit unknowns
Anything operationally material that is stale, incomplete, or unconfirmed remains visible here.
- 01Authoritative parcel/PIN, legal address, recorded title and control chain.
- 02Legal relationships among office, retail, parking, rooftop and tenant scopes.
- 03Current occupancy, permits, life-safety status and all access or dispatch rules.
Evidence register
Source links are direct. Authority and supported claim groups are stated so readers can inspect the underlying record.
- 01City benchmark record reference ↗
City of Chicago source-record reference reviewed August 18, 2026 · Supports: Candidate benchmark identity context
- 02640 North LaSalle property site ↗
Current public property site reviewed August 18, 2026 · Supports: Name, location and source-scoped building description
- 03640 North LaSalle building page ↗
Current public property page reviewed August 18, 2026 · Supports: Source-scoped building and published-role context
Public change history
Only meaningful, accepted public deltas appear here. The current record above remains canonical.
640 North LaSalle — office building
640 North LaSalle was added as an office-building Public Seed with property-site facts kept source-scoped; retail, parking, rooftop, tenant, parcel and authority boundaries remain explicit.