550 W JACKSON BLVD
Special-CBDOffice · Chicago · 60661
At a glance
550 W JACKSON BLVD in Chicago, IL is listed on the Chicago / Cook County property roll as “Special-CBDOffice”, PIN 17161130020000. The roll records 482,234 sq ft of building area, a 1963 build year and an assessed value of $115,539,000. 3 active business locations at this address appear in public records.
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.
Federal lease inventory — actual rent paid
Leases on public record
| Lease | Rentable sq ft | Annual rent | $/sq ft | Term | Options left |
|---|---|---|---|---|---|
| LIL00521 | 27,498 | $1,175,475 | $42.75 | Mar 2023 → Feb 2038 | — |
From the General Services Administration's monthly lease inventory: the rent the federal government actually pays, the square feet behind it, the dates, and the renewal options remaining. A fully serviced lease includes services and utilities, so it is not comparable to a net rent. This is one tenant, not the market. Federal space is often fitted for a specific agency and leased on government terms, so treat it as a real, checkable data point rather than an asking rent for the building.
Public record — 3 matched business locations
Tenants & business locations
| Company | Suite / floor | Since | Source | Match |
|---|---|---|---|---|
| PARAGON MARKETING GROUP, LLC | SUITE 700 | Feb 2025 | Chicago business licence | address match · high |
| Worldcom | — | Aug 2006 | Chicago business licence | address match · high |
| INTERPARK | — | Aug 2003 | Chicago business licence | address match · high |
Chicago / Cook County assessment roll
Parcel record
| Field | Value |
|---|---|
| PIN | 17161130020000 |
| Site address | 550 W JACKSON BLVD |
| Land use (DOR) | 5-91, 5-91, 5-91 — Special-CBDOffice |
| Building area (actual) | 482,234 sq ft |
| Floors / units / buildings | — / — / — |
| Lot size | 26,167 sq ft |
| Year built | 1963 |
| Zoning (primary) | — |
| Land value | — |
| Building value | — |
| Total assessed value | $115,539,000 |
Recorded owner (assessment roll)
WEST LOOP ASSOC LLC
Owner mailing address: 550 W JACKSON #910, CHICAGO, IL, 60661
Location
- Address
- 550 W JACKSON BLVD
- City
- Chicago
- ZIP
- 60661
Within ~650 m
Nearby office buildings
No other office parcels within ~650 m.
How does 550 W JACKSON BLVD compare with other Chicago office buildings?
At 482,234 sq ft, 550 W JACKSON BLVD is about 13 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 $240 per square foot of building area, against $158 across all office floor area on the roll.
What has happened at 550 W JACKSON BLVD recently?
The federal government leases space here: 1 active lease in the GSA inventory, the latest expiring Feb 2038.
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 17161130020000 as “Special-CBDOffice” (use code 5-91, 5-91, 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 550 W JACKSON BLVD?
The recorded owner on the Chicago / Cook County assessment roll (current) is WEST LOOP ASSOC LLC. Owner mailing address on file: 550 W JACKSON #910, CHICAGO, IL, 60661.
What companies have offices at 550 W JACKSON BLVD?
3 active business locations at this building appear in Chicago / Cook County public records, including PARAGON MARKETING GROUP, LLC, Worldcom, INTERPARK. Public records under-count tenants that don't hold a local receipt or register the address.
How big is 550 W JACKSON BLVD?
The Chicago / Cook County roll records 482,234 sq ft of building area, a build year of 1963. It sits on a 26,167 sq ft lot.
What is the assessed value of 550 W JACKSON BLVD?
$115,539,000 on the Chicago / Cook County roll. Assessed values are taxable-roll figures, not market prices.
What is the PIN for 550 W JACKSON BLVD?
PIN 17161130020000, site address 550 W JACKSON BLVD, 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 550 W JACKSON BLVD
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.
- U.S. General Services Administration — lease inventory — Active federal leases published monthly: annual rent actually paid, rentable square feet, effective and expiration dates, termination right, renewal options remaining and the lessor's name.
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.
Working with Chicago office parcels? Pro adds alerts, change history and CSV export ($49/mo); Enterprise adds full national files, the API and an MCP server for AI tools.
Dataset updated . Source: Chicago / Cook County assessment roll, PIN 17161130020000.
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, “550 W JACKSON BLVD, Chicago, IL (PIN 17161130020000)”, https://buildingcensus.com/offices/chicago/office-building-46341e70 (data as of September 20, 2026).