NORTHWESTERN MEM HOSP
3 office properties in Chicago / Cook County recorded to an owner mailing to 211 E ONTARIO STE 1800, CHICAGO, IL. single entity
At a glance
NORTHWESTERN MEM HOSP is recorded as the owner of 3 office properties (3 parcels) in Chicago / Cook County, totalling 1.4M sq ft of building area with $107.6M of assessed value. The owner's tax bills go to CHICAGO, IL.
County assessment roll
Properties
| Building | Submarket | Sq ft | Assessed | Last sold | Tenants |
|---|---|---|---|---|---|
| 676 N SAINT CLAIR ST | Chicago | 713.4K | $26.9M | — | 0 |
| 541 N FAIRBANKS CT | Chicago | 526.8K | $66.8M | — | 8 |
| 211 E ONTARIO ST | Chicago | 180K | $13.9M | — | 7 |
How this group was built. All of these parcels are recorded to one owner entity.The county records an owner and a mailing address for every parcel; this page collects the office parcels whose owners mail to the same address, and counts buildings rather than parcels using the county's own condo-to-building link. Lease terms, rents and the identity of a manager acting for the owner are not public records and are not shown.
Where are NORTHWESTERN MEM HOSP's office buildings?
All 3 properties are in Chicago.
The largest is 676 N SAINT CLAIR ST in Chicago at 713.4K sq ft.
Recorded build years run from 1974 to 1986.
How large is this portfolio within Chicago's office market?
Its 1.4M sq ft is 0.41% of the 347.4M sq ft of office building area on the Chicago / Cook County roll.
Its $107.6M of assessed value is 0.20% of the metro's office total.
It holds 3 of the metro's 9,438 office buildings.
Frequently asked questions
How many office buildings does NORTHWESTERN MEM HOSP own in Chicago?
3 office properties (3 parcels) on the Chicago / Cook County roll, counted by building rather than by condo parcel.
What is NORTHWESTERN MEM HOSP's largest office building?
676 N SAINT CLAIR ST, Chicago — 713.4K sq ft, assessed at $26.9M.
What are NORTHWESTERN MEM HOSP's office properties worth?
Their combined assessed value on the current Chicago / Cook County roll is $107,593,000. Assessed values are taxable-roll figures, not market prices.
Related
Everything here comes from public records, and public records go stale. If you know better, say so.
Data provenance — public records only
- Chicago / Cook County — Cook County Assessor parcel, commercial-valuation and sales datasets (owner names, mailing addresses, priced sales with buyer and seller); City of Chicago active business licences for occupancy. Licence addresses are street-level, and state-licensed professions are absent from the city roll.
Every fact on this page is drawn from the government records above — no listing sites, no scraped platforms, no third-party images. Facts from public records are uncopyrightable; each tenancy row carries its source and match confidence. Records can lag reality — a business-tax receipt or registration at an address is evidence of occupancy, not a lease confirmation.
Dataset updated . Derived from public data sources.
About this data
Source: Cook County Assessor parcel, commercial-valuation and sales datasets (Chicago / Cook County), as published September 20, 2026. See the methodology for how records are matched, cleaned and scored.
Cite as: BuildingCensus, “NORTHWESTERN MEM HOSP — Chicago office property holdings”, https://buildingcensus.com/offices/chicago/owners/northwestern-mem-hosp-aec7df (data as of September 20, 2026).