Sort by

Save Search

Alton, IL Office Spaces for Rent

Find the best office space for rent in Alton, IL among 8 listing(s) here and 2 nearby.

1 of 3

2 of 3

3 of 3
Elfgen Building

600 East Broadway, Alton, IL
Space Type

Office
For Lease

$25.00/SF/YR
1 space available / 1,500 SF
View Details
1 of 6

2 of 6

3 of 6

4 of 6

5 of 6

6 of 6
Millers First Building

111 East 4th Street, Alton, IL
Space Type

Office
For Lease

$18.00/SF/YR
3 spaces available / 1,622 - 7,251 SF
View Details
1 of 18

2 of 18

3 of 18

4 of 18

5 of 18

6 of 18

7 of 18

8 of 18

9 of 18

10 of 18

11 of 18

12 of 18

13 of 18

14 of 18

15 of 18

16 of 18

17 of 18

18 of 18
The Wedge

620 East Broadway, Alton, IL
Space Type

Meeting Rooms
For Lease

From $25/hour
$200/day
Space for 3 to 20 people
View Details
2850 Homer Adams Pkwy

2850 Homer Adams Pkwy, Alton, IL
Space Type

Office
For Lease Contact for pricing

2 spaces available / 1,066 - 5,088 SF
View Details
550 Landmarks Blvd

550 Landmarks Blvd, Alton, IL
Space Type

Office
For Lease

$16.00/SF/YR
2 spaces available / 5,727 - 5,841 SF
View Details
617 E Broadway

617 E Broadway, Alton, IL
Space Type

Office
For Lease

$25.00/SF/YR
1 space available / 2,222 SF
View Details
3 Professional Dr

3 Professional Dr, Alton, IL
Space Type

Office
For Lease

$16.50/SF/YR
1 space available / 2,080 SF
View Details
The Wedge

620 East Broadway, Alton, IL
Space Type

Office
For Lease Contact for pricing
View Details
Browse 2 listing(s) within 10 miles of Alton, IL
5512 Godfrey Rd

5512 Godfrey Rd, Godfrey, IL
Space Type

Office
For Lease

$12.00/SF/YR
1 space available / 1,100 SF
View Details
3001 Godfrey Rd

3001 Godfrey Rd, Godfrey, IL
Space Type

Office
For Lease

$15.00/SF/YR
1 space available / 2,050 SF
View Details

Frequently Asked Questions

In Alton, you have several options when it comes to leasing office space. To better understand what to look for, check out our definitive guide to finding office space for your small business or startup. Here is an overview of the most common types currently available:
- Most Common Office Type
  The most frequent subtype available for lease is General Office, which makes up 85.71% of all listings in the city.
- Second-Most Common Office Type
  The second-most common office space type listed here is Medical Office, accounting for 14.29% of available listings.
- Third-Most Common Office Type
  Up next, Restaurant also makes up a significant portion of listings, offering additional options for those seeking alternative spaces.
You can find a total of 7 listings for lease in Alton, which add up to a total of 37,204 square feet.

Alton, IL Office Space for Rent

Office inventory

According to our listing data, Alton's office market contains 612.3K square feet of space as of 2026.

Alton Office Market Breakdown by Building Size
Building Size Range	Total Square Feet
50k to 100k Sq. Ft.	341.5K Sq. Ft.

Data was provided by Yardi Research Data, refers to properties larger than 50,000 square feet.

Properties sized 50k to 100k Sq. Ft. make up most of the local office inventory, amounting to 341.5K square feet.

Average Rent for Office Spaces

You can find rental rates as low as $16 per square foot here, depending on what compromises you are willing to make. If you are looking for office space priced at a certain value, you can use the filters at the top of the page to look for properties within your optimal range.

The maximum rental rate is $18 per square foot among local listings currently available for lease.

Office Spaces Classes

The office space market in Alton incorporates a mix of properties of various ages, ratings, construction grades, and other quality indicators. 11.43% of total office listings in this city are in properties rated Class A. Class B accounts for 62.2% of traditional work spaces listed on the leasing market. Class C makes up 26.37% of such listings in Alton. This data is current as of 2026.

Alton Office Market Breakdown by Building Class
Class	Total Square Feet	Share of Total Office
A	70K	11.43%
B	380.8K	62.2%
C	161.4K	26.37%

Data was provided by Yardi Research Data, refers to properties larger than 50,000 square feet.

Alton, IL Office Spaces for Rent

Elfgen Building

Millers First Building

The Wedge

2850 Homer Adams Pkwy

550 Landmarks Blvd

617 E Broadway

3 Professional Dr

The Wedge

Browse 2 listing(s) within 10 miles of Alton, IL

5512 Godfrey Rd

3001 Godfrey Rd

Frequently Asked Questions

Alton, IL Office Space for Rent

Office inventory

Average Rent for Office Spaces

Office Spaces Classes

Other Popular Searches

Popular Coworking Searches

Popular Commercial Searches