Who owns DuPage County, IL: the biggest property owners
The 25 largest company owners in DuPage County, IL hold 2,292 parcels, 0.7% of the county. The biggest is Commonwealth Edison Co with 537. Companies, lenders and builders own 2.8% of the county's homes. Entities only, no private individuals.
What the numbers say
- Commonwealth Edison Co holds 537 parcels (0.16% of the county).
- Together the 25 biggest company owners added 115 parcels in the last two years.
- The share of absentee-owned homes is a stand-in for rentals: it is the share of the 31,507 homes whose owner's mailing address is elsewhere.
The 25 biggest company owners in DuPage County, IL
| # | Owner | Parcels | Share of county | Share of absentee-owned homes | Added in 2 years | County value |
|---|---|---|---|---|---|---|
| 1 | Commonwealth Edison Co Company | 537 | 0.16% | – | 0 | $37.4M |
| 2 | Slk Global Solutions Amer Company | 164 | 0.05% | 0.46% | 0 | $26.8M |
| 3 | Mosaic Springhill LLC Company | 154 | 0.05% | – | 1 | $7.0M |
| 4 | Avanath Hinsdale LLC Company | 127 | 0.04% | – | 0 | $9.4M |
| 5 | Nicor Gas / Southern Co Company | 113 | 0.03% | – | 5 | $20.5M |
| 6 | Pulte Home Company LLC Builder / developer | 106 | 0.03% | 0.00% | 0 | $1.5M |
| 7 | M/i Homes Of Chicago LLC Builder / developer | 93 | 0.03% | – | 0 | $63 |
| 8 | Ventura 21 INC Company | 91 | 0.03% | – | 0 | $91 |
| 9 | Ih2 Property Illinois LP Company | 76 | 0.02% | 0.24% | 0 | $8.6M |
| 10 | C1 Chicago 2 LLC Company | 70 | 0.02% | 0.03% | 1 | $3.4M |
| 11 | Wood Dale 49 LLC Company | 69 | 0.02% | 0.22% | 9 | $1.2M |
| 12 | Ross Lane Development LLC Builder / developer | 61 | 0.02% | – | 0 | – |
| 13 | Farmingdale Development Builder / developer | 59 | 0.02% | – | 0 | $168k |
| 14 | Cassidy Series LLC Company | 58 | 0.02% | 0.18% | 0 | $1.5M |
| 15 | Thr Property Illinois LP Company | 58 | 0.02% | 0.18% | 0 | $6.3M |
| 16 | Csma Ft LLC Company | 57 | 0.02% | 0.18% | 0 | $5.7M |
| 17 | Naperville Conversion LLC Company | 54 | 0.02% | 0.17% | 0 | $2.7M |
| 18 | Djk Custom Homes INC Builder / developer | 53 | 0.02% | 0.08% | 8 | $5.8M |
| 19 | Mavecon Investments LLC Company | 50 | 0.01% | 0.16% | 0 | $1.9M |
| 20 | Fkh Sfr R LP Company | 47 | 0.01% | 0.15% | 47 | $4.8M |
| 21 | Naperville Owner 1 LLC Company | 43 | 0.01% | – | 43 | $32.6M |
| 22 | 826 Terrace Lake LLC Company | 41 | 0.01% | – | 0 | $13.2M |
| 23 | D.r. Horton INC - Midwest Builder / developer | 38 | 0.01% | 0.00% | 0 | $1.2M |
| 24 | Amb Prop Re Tax Co Company | 37 | 0.01% | – | 1 | $87.2M |
| 25 | Aim Olympus LLC Company | 36 | 0.01% | 0.11% | 0 | $1.3M |
| Shares use all 336,922 parcels in the county file. | ||||||
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Largest public bodies and non-profits
| # | Owner | Parcels | Share of county | Share of absentee-owned homes | Added in 2 years | County value |
|---|---|---|---|---|---|---|
| 1 | Forest Preserve District Public body | 979 | 0.29% | 0.00% | 2 | $289k |
| 2 | Forest Preserve Dist Public body | 221 | 0.07% | – | 0 | – |
| 3 | Diocese Of Joliet Non-profit / church | 218 | 0.06% | 0.00% | 0 | $632k |
| 4 | Dupage Co Forest Preserve Public body | 215 | 0.06% | – | 0 | $168 |
| 5 | United States Of America Public body | 179 | 0.05% | – | 0 | $3k |
| 6 | City Of Naperville Public body | 152 | 0.05% | – | 0 | $122 |
| 7 | City Of Elmhurst Public body | 142 | 0.04% | – | 0 | $210k |
| 8 | Du Page Airport Authority Public body | 136 | 0.04% | – | 0 | $3.1M |
| 9 | Village Of Downers Grove Public body | 134 | 0.04% | 0.00% | 1 | $23k |
| 10 | Wheaton College Non-profit / church | 131 | 0.04% | 0.00% | 1 | $403k |
| Shares use all 336,922 parcels in the county file. | ||||||
How we count
- Owners are grouped by the owner name on the county roll. A company that is spelled two ways shows as two rows, so a real total can be higher.
- One parcel is one tax record, so a condo unit counts as a parcel. Only owners with 10 or more parcels are listed.
- 'Owned by' does not mean 'managed by' or 'rented out'. Many are builders, banks that took a house back and apartment owners.
- 'Added in 2 years' counts parcels the owner got in the last two years. It does not subtract parcels they sold.
- We list companies, lenders, builders, public bodies and non-profits only. No private individuals, estates or family trusts are ranked.
Think a row is wrong? Tell us (choose 'Data looks wrong') and we will check the county record.
Questions
Who are the biggest owners in DuPage County, IL?
By parcel count, Commonwealth Edison Co holds 537 parcels. The table lists the 25 largest company, lender and builder owners and the largest public bodies and non-profits.
Why are people not listed?
This page is about companies and public bodies. We do not rank private individuals, estates or family trusts by name. County records are public, but a 'biggest owners' list is a story about portfolios, not about people at home.
Does 'owned by' mean 'managed by' or 'rents out'?
No. It means the owner of record on the county roll. Many large owners are builders, banks that took a house back, or condo and apartment companies. A company can own homes through several differently spelled names, so a real total can be higher than the row shows.
How do you count a parcel?
One parcel is one tax record. A condo unit is a parcel, so a company that owns a whole building shows many parcels. The share is that count divided by all parcels in the county file.
I found a mistake. What do I do?
Tell us on the contact page (choose 'Data looks wrong'). Name the owner and what is off, and we will check the county record and fix it.
How we make these guides
Written by the LeadCounty editorial and data team from official county, court and state sources and our own weekly counts. We name the office behind every number, say what we cannot see, and fix mistakes when you tell us. See our editorial standards and methodology. General information, not legal or financial advice. Refreshed weekly.
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