Willis Tower
Special-CBDOffice · Chicago · 60606 · 233 S WACKER DR
At a glance
Willis Tower (233 S WACKER DR) in Chicago, IL is listed on the Chicago / Cook County property roll as “Special-CBDOffice”, PIN 17162160090000. The roll records 4,667,723 sq ft of building area, a 1973 build year and an assessed value of $1,227,049,000. It last sold for $300,000,000 in Jun 2015. 40 active business locations at this address appear in public records.
Derived from suite and floor strings in the occupancy records
Which floors show activity
- 551 on record
- 54no record
- 53no record
- 52no record
- 51no record
- 50no record
- 49no record
- 48no record
- 47no record
- 46no record
- 45no record
- 442 on record
- 432 on record
- 42no record
- 41no record
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- 38no record
- 37no record
- 36no record
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- 34no record
- 33no record
- 32no record
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- 17no record
- 16no record
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- 12no record
- 11no record
- 10no record
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- 8no record
- 7no record
- 6no record
- 5no record
- 4no record
- 3no record
- 2no record
- 1no record
Floors are read from suite numbers on Chicago / Cook County business records (suite 4900 → floor 49). A floor with no record is not necessarily vacant — it may be mechanical, occupied by the owner, or let to a business whose receipt carries no suite. Receipts also lag reality by months. This shows where the public record places businesses, not a rent roll or an availability report. A stretch of quiet floors is not contiguous space for rent — it is contiguous silence in the record, which is the closest thing the public record has to that question and worth exactly what it costs to check.
The building's own benchmarking filing
Energy performance
From the building's own filing under its city's benchmarking ordinance. An ENERGY STAR score of 75 or above means the building outperforms three quarters of comparable buildings nationally. It is a self-reported figure, verified by the city only to the extent the ordinance requires.
Recorded transfers — county roll + state sale file
Sale history
| Recorded | Price | Qualification | Source | Instrument |
|---|---|---|---|---|
| Jun 2015 | $300,000,000 | not rated | County roll | — |
Prices are the consideration recorded in Chicago / Cook County's public property records. Where a qualification code exists it is the assessor's judgement of whether a transfer was arm's length; transfers without one appear unrated rather than assumed clean. Whether a building is on the market today, and at what price, is not a public record and is not shown here — asking prices, listings and lease terms live in private commercial databases.
Public record — 40 matched business locations
Tenants & business locations
| Company | Suite / floor | Since | Source | Match |
|---|---|---|---|---|
| IMC Americas | FLOOR 43 SUITE 4300 | May 2026 | Chicago business licence | address match · high |
| LANDMARKS ILLINOIS | SUITE 4400 | Feb 2026 | Chicago business licence | address match · high |
| IMC SECURITIES LLC | FLOOR 43 SUITE 4300 | Jan 2026 | Chicago business licence | address match · high |
| Convenevia CONVENE | — | Jun 2025 | Chicago business licence | address match · high |
| Industrious CHI 233 South Wacker Drive LLC | SUITE 4400 | Apr 2025 | Chicago business licence | address match · high |
| JOSEPHINE'S COOKING | — | Oct 2018 | Chicago business licence | address match · high |
| UNITED SCHOLARSHIP FUND | — | Sep 2018 | Chicago business licence | address match · high |
| CORNER BAKERY CAFE | — | Sep 2018 | Chicago business licence | address match · high |
| STARBUCKS COFFEE | — | Apr 2017 | Chicago business licence | address match · high |
| 233 SKYDECK | — | Sep 2016 | Chicago business licence | address match · high |
| ERNESTINE'S PRODUCE STAND, INC. | — | Jul 2016 | Chicago business licence | address match · high |
| Yum Dum | — | May 2015 | Chicago business licence | address match · high |
| Chicago Pizza Boss | — | May 2015 | Chicago business licence | address match · high |
| La Cocinita | — | May 2015 | Chicago business licence | address match · high |
| Ms. Tittle's Cupcakes | — | May 2015 | Chicago business licence | address match · high |
| Auntie Vee's | — | Apr 2015 | Chicago business licence | address match · high |
| Bridgeport Pasty | — | Apr 2015 | Chicago business licence | address match · high |
| Haute Sausage | — | Apr 2015 | Chicago business licence | address match · high |
| Chicago Cupcake | — | Mar 2015 | Chicago business licence | address match · high |
| DonerMen LLC | — | Mar 2015 | Chicago business licence | address match · high |
| Bruges Brothers | — | Mar 2015 | Chicago business licence | address match · high |
| 233 CONFERENCE LLC | — | Sep 2014 | Chicago business licence | address match · high |
| CENTIV SERVICES INC. | — | Aug 2009 | Chicago business licence | address match · high |
| RELAY #4041 | LBBY | Mar 2009 | Chicago business licence | address match · high |
| BMO CAPITAL MARKETS GKST INC. | — | Sep 2008 | Chicago business licence | address match · high |
| Ernst & Young Llpvia ERNST & YOUNG LLP | — | Sep 2008 | Chicago business licence | address match · high |
| SHARPSHOOTER IMAGING | — | Mar 2008 | Chicago business licence | address match · high |
| CHICAGO TROLLEY CO. | — | Jan 2008 | Chicago business licence | address match · high |
| ACCENT CHICAGO | — | Aug 2007 | Chicago business licence | address match · high |
| Skydeck Cafe' | — | Aug 2005 | Chicago business licence | address match · high |
| SEARS TOWER CLUB | — | Nov 2004 | Chicago business licence | address match · high |
| DOS HERMANOS | — | Nov 2004 | Chicago business licence | address match · high |
| CORNER BAKERY #0085 | — | Oct 2004 | Chicago business licence | address match · high |
| WILLIAMS LEA INC. | # 5500 | Aug 2004 | Chicago business licence | address match · high |
| Tower Tickets | — | Oct 2003 | Chicago business licence | address match · high |
| FEDERAL EXPRESS | — | May 2003 | Chicago business licence | address match · high |
| FORMERLY CB (See comments) | LOBBY | May 2003 | Chicago business licence | address match · high |
| EANDY CORPORATE FINANCE | — | Nov 2002 | Chicago business licence | address match · high |
| FIRST ANALYSIS CORPORATION | — | Nov 2002 | Chicago business licence | address match · high |
| BANKERS TRUST CO | — | Nov 2002 | Chicago business licence | address match · high |
Chicago / Cook County assessment roll
Parcel record
| Field | Value |
|---|---|
| PIN | 17162160090000 |
| Site address | 233 S WACKER DR |
| Land use (DOR) | 5-91 — Special-CBDOffice |
| Building area (actual) | 4,667,723 sq ft |
| Floors / units / buildings | — / — / — |
| Lot size | 128,080 sq ft |
| Year built | 1973 |
| Zoning (primary) | — |
| Land value | — |
| Building value | — |
| Total assessed value | $1,227,049,000 |
Recorded owner (assessment roll)
PROPERTY TAX
Owner mailing address: P O BOX A-3879, CHICAGO, IL, 60690
12 Chicago office properties share this owner mailing address →
Commercial property is usually held one building per entity; a shared mailbox is how the roll reveals a portfolio. It is evidence of common ownership, not proof.
Location
- Address
- 233 S WACKER DR
- City
- Chicago
- ZIP
- 60606
Within ~650 m
Nearby office buildings
No other office parcels within ~650 m.
How does Willis Tower compare with other Chicago office buildings?
At 4,667,723 sq ft, Willis Tower is about 127 times the size of the average office building on the Chicago / Cook County roll, which comes to 36,812 sq ft across 9,438 buildings.
Its assessed value works out to $263 per square foot of building area, against $158 across all office floor area on the roll.
The last recorded sale priced it at $64 per square foot.
Does the owner of Willis Tower hold other Chicago office property?
12 Chicago office properties (12 parcels, 11.4M sq ft) are recorded to 7 owner entities sharing this parcel's tax-bill mailing address. A shared mailing address is evidence of common ownership, not proof of it.
What has happened at Willis Tower recently?
1 recorded transfer is on file for this parcel, the latest dated Jun 2015.
The building files energy-benchmarking disclosures — 1 report year are matched to this parcel.
What does “Special-CBDOffice” mean for this parcel?
The Chicago / Cook County roll classifies PIN 17162160090000 as “Special-CBDOffice” (use code 5-91). BuildingCensus includes a parcel in its office census when the roll gives it an office-class use, so the label is the county's, not an inference.
Frequently asked questions
Who owns Willis Tower?
The recorded owner on the Chicago / Cook County assessment roll (current) is PROPERTY TAX. Owner mailing address on file: P O BOX A-3879, CHICAGO, IL, 60690.
What companies have offices at Willis Tower?
40 active business locations at this building appear in Chicago / Cook County public records, including IMC Americas, LANDMARKS ILLINOIS, IMC SECURITIES LLC, Convene, Industrious CHI 233 South Wacker Drive LLC. Public records under-count tenants that don't hold a local receipt or register the address.
How big is Willis Tower?
The Chicago / Cook County roll records 4,667,723 sq ft of building area, a build year of 1973. It sits on a 128,080 sq ft lot.
What is the assessed value of Willis Tower?
$1,227,049,000 on the Chicago / Cook County roll. Assessed values are taxable-roll figures, not market prices.
When did Willis Tower last sell?
The last recorded transfer was in Jun 2015 for $300,000,000 ($64 per square foot).
What is the PIN for Willis Tower?
PIN 17162160090000, site address 233 S WACKER DR, Chicago. It is the key to look the parcel up in the Cook County Assessor parcel, commercial-valuation and sales datasets (Chicago / Cook County).
More around Willis Tower
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.
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Dataset updated . Source: Chicago / Cook County assessment roll, PIN 17162160090000.
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, “Willis Tower, Chicago, IL (PIN 17162160090000)”, https://buildingcensus.com/offices/chicago/willis-tower-641962e3 (data as of September 20, 2026).