Heyworth Building
29 E Madison St, Chicago, IL 60602
50% provisional source coverage
USE BOUNDARYNot verified · Not dispatch ready
Heyworth Building is a office building at 29 E Madison St, Chicago, IL 60602 associated with Chicago benchmark ID 160184. It is Graph Mapped as a Public Seed, not Verified or Dispatch Ready.
Canonical identity
The Heyworth Building is a City-designated Chicago Landmark at the supplied address. A current Marc Realty page presents it as a 19-story office property; title, control and authority are unverified.
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
The Heyworth Building is a City-designated Chicago Landmark at the supplied address. A current Marc Realty page presents it as a 19-story office property; title, control and authority are unverified.
Sources reviewed August 18, 2026Evidence boundary
Parcel, title, control, management, operator and action authority are not inferred from public identity evidence.
Boundary reviewed August 18, 2026Coverage state
Public Seed / Graph Mapped only; explicit unknowns and preserved conflicts remain for later enrichment.
Accepted August 18, 2026Questions this record answers
Each concise answer includes the same caveats shown elsewhere on the page.
01What is Heyworth Building?+
Heyworth Building is a office building at 29 E Madison St, Chicago, IL 60602 associated with Chicago benchmark ID 160184. It is Graph Mapped as a Public Seed, not Verified or Dispatch Ready.
02Is Heyworth Building ready for dispatch?+
No. It is a Public Seed and Graph Mapped, not Verified or Dispatch Ready.
03What remains unknown about Heyworth Building?+
Parcel/PIN, legal description, title/control and current owner. Current management contract, operator authority and any authorization boundaries. Exact tenant, retail, unit and component occupancy. Benchmark-row facts, permits, inspections, life-safety, zoning, telecom and operating rules.
Explicit unknowns
Anything operationally material that is stale, incomplete, or unconfirmed remains visible here.
- 01Parcel/PIN, legal description, title/control and current owner.
- 02Current management contract, operator authority and any authorization boundaries.
- 03Exact tenant, retail, unit and component occupancy.
- 04Benchmark-row facts, permits, inspections, life-safety, zoning, telecom and operating rules.
Evidence register
Source links are direct. Authority and supported claim groups are stated so readers can inspect the underlying record.
- 01City of Chicago, Commission on Chicago Landmarks ↗
Official current landmark page accessed 2026-08-18. · Supports: Source-scoped public facts only; Supports landmark identity and historic facts only; not parcel, title, current ownership/control, operations or authority.
- 02Marc Realty ↗
Current first-party property page accessed 2026-08-18. · Supports: Source-scoped public facts only; Marketing/property-management representation; not a title record, management agreement, authority grant, or operational procedure.
- 03City of Chicago ↗
Dataset namespace and supplied benchmark ID available; row not independently read. · Supports: Source-scoped public facts only; No row facts, energy/compliance facts, owner, parcel, title or operating inference.
Public change history
Only meaningful, accepted public deltas appear here. The current record above remains canonical.
Heyworth Building
Heyworth Building was added as a public, evidence-bounded building seed at 29 E Madison St, Chicago, IL 60602; unresolved enrichment and authority fields remain explicit.