641 West Lake
641 W Lake St, Chicago, IL 60661
60% provisional source coverage
USE BOUNDARYNot verified · Not dispatch ready
641 West Lake is an evidence-bounded building at 641 W Lake St, Chicago, IL 60661, associated with Chicago benchmark ID 252072. It is Graph Mapped as a Public Seed, not Verified or Dispatch Ready.
Canonical identity
641 West Lake is an evidence-bounded office-building seed. City 2023 benchmarking reports 96,235 square feet while R2 reports 106,000 square feet; those and other historical area variants remain source-attributed and unresolved.
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.
Public identity
641 West Lake is an evidence-bounded office-building seed. City 2023 benchmarking reports 96,235 square feet while R2 reports 106,000 square feet; those and other historical area variants remain source-attributed and unresolved.
Sources reviewed 2026-08-19Evidence boundary
Parcel, title, control, management, complete occupancy, operating rules, action authority, access and dispatch rights are not inferred beyond cited evidence.
Accepted 2026-08-19Coverage state
Public Seed / Graph Mapped only; explicit unknowns and preserved conflicts remain for later enrichment.
Accepted 2026-08-19Questions this record answers
Each concise answer includes the same caveats shown elsewhere on the page.
01What is 641 West Lake?+
641 West Lake is an evidence-bounded office-building seed. City 2023 benchmarking reports 96,235 square feet while R2 reports 106,000 square feet; those and other historical area variants remain source-attributed and unresolved.
02Is 641 West Lake ready for dispatch?+
No. It is a Public Seed and Graph Mapped, not Verified or Dispatch Ready.
03What remains unknown about 641 West Lake?+
parcel or assessment identifier and authoritative building-component boundary; recorded title and beneficial control; current manager or operator; complete current tenant or occupant roster and occupancy; operating, access, safety, delivery, work-order, authorization, and dispatch rules
Explicit unknowns
Anything operationally material that is stale, incomplete, or unconfirmed remains visible here.
- 01parcel or assessment identifier and authoritative building-component boundary
- 02recorded title and beneficial control
- 03current manager or operator
- 04complete current tenant or occupant roster and occupancy
- 05operating, access, safety, delivery, work-order, authorization, and dispatch rules
Evidence register
Source links are direct. Authority and supported claim groups are stated so readers can inspect the underlying record.
- 01City of Chicago covered buildings — 252072 ↗
Municipal covered-buildings record; reviewed 2026-08-19 · Supports: benchmark and address-level identity; not parcel, title, control, management, occupancy, or authority
- 02City of Chicago benchmarking results — 252072 ↗
Municipal annual benchmarking results; reviewed 2026-08-19 · Supports: source-reported office, area, year-built, and one-building fields; anomalous coordinates are not used for identity
- 03R2 — 641 West Lake ↗
Attributable public portfolio page; reviewed 2026-08-19 · Supports: physical-building name, West Loop context, loft-office description, and source-reported area; not title, control, occupancy, or authority
Public change history
Only meaningful, accepted public deltas appear here. The current record above remains canonical.
641 West Lake
Factum published 641 West Lake as a Graph Mapped Public Seed with attributable public evidence, explicit unknowns, and no dispatch-readiness claim.