320 N SANGAMON ST
Special-CBDOffice · Chicago · 60607
At a glance
320 N SANGAMON ST in Chicago, IL is listed on the Chicago / Cook County property roll as “Special-CBDOffice”, PIN 17084120100000. The roll records 309,985 sq ft of building area, a 2022 build year and an assessed value of $73,984,000. It last sold for $15,750,000 in Dec 2018. 2 active business locations at this address appear in public records.
Recorded transfers — county roll + state sale file
Sale history
| Recorded | Price | Qualification | Source | Instrument |
|---|---|---|---|---|
| Dec 2018 | $15,750,000 | 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 — 2 matched business locations
Tenants & business locations
| Company | Suite / floor | Since | Source | Match |
|---|---|---|---|---|
| SP PLUS LLC | — | Apr 2026 | Chicago business licence | address match · high |
| 320 N. Sangamon | LOBBY | Dec 2024 | Chicago business licence | address · medium |
Chicago / Cook County assessment roll
Parcel record
| Field | Value |
|---|---|
| PIN | 17084120100000 |
| Site address | 320 N SANGAMON ST |
| Land use (DOR) | 5-91 — Special-CBDOffice |
| Building area (actual) | 309,985 sq ft |
| Floors / units / buildings | — / — / — |
| Lot size | 33,862 sq ft |
| Year built | 2022 |
| Zoning (primary) | — |
| Land value | — |
| Building value | — |
| Total assessed value | $73,984,000 |
Recorded owner (assessment roll)
310 N SANGAMON OWNER
Owner mailing address: 320 N SANGAMON ST, CHICAGO, IL, 60607
Location
- Address
- 320 N SANGAMON ST
- City
- Chicago
- ZIP
- 60607
Within ~650 m
Nearby office buildings
No other office parcels within ~650 m.
How does 320 N SANGAMON ST compare with other Chicago office buildings?
At 309,985 sq ft, 320 N SANGAMON ST is about 8 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 $239 per square foot of building area, against $158 across all office floor area on the roll.
The last recorded sale priced it at $51 per square foot.
What has happened at 320 N SANGAMON ST recently?
1 recorded transfer is on file for this parcel, the latest dated Dec 2018.
What does “Special-CBDOffice” mean for this parcel?
The Chicago / Cook County roll classifies PIN 17084120100000 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 320 N SANGAMON ST?
The recorded owner on the Chicago / Cook County assessment roll (current) is 310 N SANGAMON OWNER. Owner mailing address on file: 320 N SANGAMON ST, CHICAGO, IL, 60607.
What companies have offices at 320 N SANGAMON ST?
2 active business locations at this building appear in Chicago / Cook County public records, including SP PLUS LLC, 320 N. Sangamon. Public records under-count tenants that don't hold a local receipt or register the address.
How big is 320 N SANGAMON ST?
The Chicago / Cook County roll records 309,985 sq ft of building area, a build year of 2022. It sits on a 33,862 sq ft lot.
What is the assessed value of 320 N SANGAMON ST?
$73,984,000 on the Chicago / Cook County roll. Assessed values are taxable-roll figures, not market prices.
When did 320 N SANGAMON ST last sell?
The last recorded transfer was in Dec 2018 for $15,750,000 ($51 per square foot).
What is the PIN for 320 N SANGAMON ST?
PIN 17084120100000, site address 320 N SANGAMON ST, 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 320 N SANGAMON ST
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 17084120100000.
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, “320 N SANGAMON ST, Chicago, IL (PIN 17084120100000)”, https://buildingcensus.com/offices/chicago/office-building-7bc08aea (data as of September 20, 2026).