Highlights
- The average rent for office space in Westmont is $19.11 per square foot, 8.33% lower compared to the previous year.
- The market’s vacancy rate stands at 13.02%, lower than the state average of Illinois, which is 24.54%.
- 40,635 square feet is currently under construction.
2025 Office Space Rent & Sales
- $19.11 2025 Avg. Asking Rent
- -8.33% Y-o-Y Avg. Asking Rent Change
- 13.02% 2025 Office Vacancy Rate
What is the average asking rent price for office space in Westmont?
Average asking rents for office space here stand at $19.11 per square foot. The local office market recorded an average vacancy rate of 13.02% in 2025, unchanged from 13.02% in 2024.
Westmont, IL Office Asking Rents by Class
What is the average office rent per square foot by property class in IL?
- Avg. Asking Rent Class A & A+$34.01
- Avg. Asking Rent Class B$25.49
- Avg. Asking Rent Class C$22.85
For comparison, the average rent for Class A and A+ office space in Illinois was $34.01 per square foot. The state-wide average for Class B space was $25.49 per square foot, and Class C office spaces averaged $22.85 per square foot.
Office Construction in Westmont, IL
- Westmont, IL Total SF under construction in 2026 40,635
What are the largest recent office completions in Westmont?
The largest recent office completion here is Oakmont Circle at 127,804 square feet, completed in 1990. The next largest completions are Oakmont Circle and Oakwood Commons Business Center.
| Office building | Address | SF | Completed |
|---|---|---|---|
| Market Centre | 6200 South Cass Avenue, 60559 | 100,518 | 2020 |
| Oakmont Circle | 601 Oakmont Ln, 60559 | 127,804 | 1990 |
| Oakmont Circle | 601 Oakmont Ln, 60559 | 127,804 | 1990 |
| Executive Place II | 1111 Pasquinelli Dr, 60559 | 76,764 | 1988 |
| Oakmont Professional Building | 801 N Cass Ave, 60559 | 50,114 | 1981 |
| Oakmont Business Center | 825 N Cass Ave, 60559 | 59,904 | 1977 |
| Oakmont Business Center | 825 North Cass Avenue, 60559 | 59,751 | 1977 |
| Oakwood Commons Business Center | 816 Burr Oak Drive, 60559 | 101,000 | 1973 |
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Disclaimer
All information on this page is based on city-level data that includes properties equal to or larger than 25,000 square feet.
Averages were calculated based on values dated between January 1st and December 31st 2025. Construction pipeline data represented herein is valid as of January 2026.
While every effort was made to ensure the accuracy of the data presented in this report, the information is provided “as is” and neither CommercialCafe nor Yardi Research Data can guarantee that the information provided is complete.