Chicago commercial building operations research
Chicago–Naperville–Elgin, IL–IN MSA · CBSA 16980
OMB Bulletin 23-01 / July 2023 delineation
STATESIllinois · Indiana
Factum is mapping high-complexity commercial buildings across the official 13-county Chicago–Naperville–Elgin metropolitan statistical area. The census remains partial: the current 4,645-record bounded source denominator combines unlike City and suburban candidate sets and is not a count of physical buildings. Within the Cook County source slice, 6,630 of 6,737 commercial-valuation candidates reconcile to the 2025 Parcel Universe; the exact remaining 107-key cohort is now hash-pinned, and the current parcel layer corroborates 95 while 12 remain unmatched.
What the current denominator means
Chicago is Factum’s first live-validation market and the deepest operating-graph lane. Public records establish the building universe; first-party operating documents and contributed field evidence progressively resolve how work actually gets done.
City of Chicago covered-building rows
Municipal energy-benchmarking program records; a program row is not automatically a physical-building identity.
Cook County suburban latest key-PIN candidates
Commercial assessment candidates screened by source-reported building area; a PIN may represent part of a building, multiple structures, or a campus.
Questions this page answers
Compact answers are rendered in visible HTML and structured data so people and answer engines can retrieve the same claims and caveats.
01How many commercial buildings has Factum identified in metro Chicago?+
Factum currently has a bounded source denominator of 4,645 candidate records, but that is not a physical-building count. The 13-county census remains incomplete while county coverage, duplicate resolution, and campus-versus-building identities are reconciled.
02What does Graph Mapped mean?+
Graph Mapped means a record has a resolved working identity, structured claims, evidence, relationships, conflicts, and explicit unknowns. It does not mean the record has been independently verified or is safe to use for dispatch.
03Is the Chicago building dataset complete?+
No. Factum does not claim completeness until all 13 counties have documented source coverage, denominators, duplicate resolution, and independent reconciliation.
04What happened to the 107 Cook County records that did not match the 2025 Parcel Universe?+
Factum reproduced and hash-pinned the exact 107-key cohort. A current Cook County parcel layer corroborates 95 keys and leaves 12 unmatched, but two matched keys return multiple parcel features. The official 2025 Parcel Addresses crosswalk returned no rows for the exact keys or their listed PINs, so no address, municipality, building, or campus identity was inferred.
05What kinds of buildings are being prioritized?+
The first queue emphasizes large, operationally complex commercial properties where access, freight, insurance, contractor, telecom, and coordination knowledge is repeatedly valuable.
Published building records
Explicit unknowns
These are active research requirements—not footnotes to be smoothed over.
- 01Counter reconciliation: after this accepted three-building packet, the operating census has 43 rows labeled Graph mapped while the canonical accepted counter is 40. Three pre-existing historical rows remain outside the governed counter because their receipt or read-back attribution is unresolved; they are not silently promoted.
- 02Complete source coverage for all 13 counties in the official MSA.
- 03Resolution of 1,556 suburban candidate records that list multiple PINs.
- 04Explanation of the source-time difference between the certified 2025 Parcel Universe and the current parcel layer: the exact 107-key cohort is recovered, but the current layer corroborates 95, leaves 12 unmatched, and returns one-to-many features for two keys.
- 05Authoritative address and municipality evidence for the 107-key cohort. The official tax-year-2025 Parcel Addresses query returned zero rows for the 107 keys and their listed PINs; absence from that source is not evidence that a parcel or building does not exist.
- 06Physical-building and campus identity for candidate rows whose source semantics are parcel-, account-, or program-level.
- 07Independent verification and live-job audit for every graph-mapped building.
Sources and scope
Public-page claims are limited to what the cited sources support. Source records, parcels, accounts, footprints, campuses, and physical buildings remain distinct identities until reconciled.
- 01U.S. Census Bureau metropolitan delineation files ↗
Federal government · Supports: Canonical CBSA identity and boundary vintage
- 02Chicago Energy Benchmarking — Covered Buildings ↗
City of Chicago · Supports: Bounded City covered-building source layer
- 03Cook County Assessor open data ↗
Cook County Assessor · Supports: Commercial assessment and parcel reconciliation sources
- 04Cook County Assessor — Parcel Universe ↗
Cook County Assessor · Supports: Tax-year-2025 parcel reconciliation for the Cook commercial-valuation candidate slice; parcel records are not physical-building identities
- 05Cook County Hosted Parcel Feature Layer ↗
Cook County GIS · Supports: Current parcel-layer corroboration for 95 of the exact 107 keys; the layer does not establish building, campus, address, or municipality identity
- 06Cook County Assessor — Parcel Addresses ↗
Cook County Assessor · Supports: Official PIN-grain property street, city, state and ZIP crosswalk; a complete tax-year-2025 query returned zero rows for the exact 107 keys and their listed PINs
- 07CMAP Northeastern Illinois Development Database ↗
Chicago Metropolitan Agency for Planning · Supports: Independent regional development reconciliation path