HAMILTON PARTNERS INC
5 office properties in Chicago / Cook County recorded to 2 owner entities mailing to 300 PARK BLVD STE 201, ITASCA, IL. likely one owner
At a glance
HAMILTON PARTNERS INC is recorded as the owner of 5 office properties (5 parcels) in Chicago / Cook County, totalling 922.6K sq ft of building area with $103.1M of assessed value. The holdings sit in 2 owner entities that share one tax-bill mailing address in ITASCA, IL — and a name root, which is how a single sponsor usually holds property.
County assessment roll
Properties
| Building | Submarket | Sq ft | Assessed | Last sold | Tenants |
|---|---|---|---|---|---|
| Ptarmigan Place | Denver | 453.3K | $64.3M | — | 0 |
| 1101 PERIMETER DR | Schaumburg | 178.8K | $13.6M | — | 0 |
| 85 W ALGONQUIN RD | Arlington Heights | 143.3K | $12.1M | — | 0 |
| 220 N SMITH ST | Palatine | 104.9K | $8.9M | — | 0 |
| 1614 W CENTRAL RD | Arlington Heights | 42.3K | $4.2M | — | 0 |
Names on the deeds
Owner entities at this address
- HTD-PTARMIGAN PLACE LLC
- HAMILTON PARTNERS INC
How this group was built. These entities share both a mailing address and a name root, which is how a single sponsor usually holds property — one entity per building.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 HAMILTON PARTNERS INC's office buildings?
The 5 properties are spread across 4 cities, led by Arlington Heights (2), Denver (1), Schaumburg (1).
The largest is Ptarmigan Place in Denver at 453.3K sq ft over 10 floors.
Recorded build years run from 1976 to 2006.
How large is this portfolio within Chicago's office market?
Its 922.6K sq ft is 0.27% of the 347.4M sq ft of office building area on the Chicago / Cook County roll.
Its $103.1M of assessed value is 0.19% of the metro's office total.
It holds 5 of the metro's 9,438 office buildings.
Frequently asked questions
How many office buildings does HAMILTON PARTNERS INC own in Chicago?
5 office properties (5 parcels) on the Chicago / Cook County roll, counted by building rather than by condo parcel.
What is HAMILTON PARTNERS INC's largest office building?
Ptarmigan Place, Denver — 453.3K sq ft, assessed at $64.3M.
What are HAMILTON PARTNERS INC's office properties worth?
Their combined assessed value on the current Chicago / Cook County roll is $103,090,071. Assessed values are taxable-roll figures, not market prices.
Are these properties owned by one company?
These entities share both a mailing address and a name root, which is how a single sponsor usually holds property — one entity per building. 2 owner entities share the mailing address. It is evidence of common ownership, not proof of it.
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, “HAMILTON PARTNERS INC — Chicago office property holdings”, https://buildingcensus.com/offices/chicago/owners/hamilton-partners-inc-75e8c7 (data as of September 20, 2026).