Saint Charles County, MO Office Spaces for Rent

Find the best Saint Charles County, MO office space among 94 for rent listings currently on the market.

100 Brevco Plaza

100 Brevco Plaza, Lake Saint Louis, MO
Space Type

Office
For Lease

$15.00/SF/YR
3 spaces available / 1,800 - 3,700 SF
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1735 South River Road

1735 South River Road, St. Charles, MO
Space Type

Office
For Lease Contact for pricing

1 space available / 12,000 SF
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340 E Mid Rivers Ctr.

340 E Mid Rivers Ctr., Saint Peters, St. Peters, MO
Space Type

Office
For Lease

$14.50/SF/YR
1 space available / 2,250 SF
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6301 Old Highway 94

6301 Old Highway 94, Weldon Spring, MO
Space Type

Office
For Lease

$208.33/MO
1 space available / 2,283 SF
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1270 Jungermann Rd

1270 Jungermann Rd, Saint Peters, St. Peters, MO
Space Type

Office
For Lease

$41.25/MO
1 space available / 2,000 SF
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Hamilton Industrial Court

141-147 Hamilton Industrial Court, Wentzville, MO
Space Type

Office
For Lease

$15.00/SF/YR
1 space available / 1,519 SF
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The Heritage Small Business Hub - The Hub
The Heritage Small Business Hub
2722 South Saint Peters Parkway, St. Peters, MO
Space Type

Private Offices
For Lease

Contact for pricing
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6700 Keaton Corporate Parkway

6700 Keaton Corporate Parkway, O'Fallon, MO
Space Type

Office
For Lease

$17.00/SF/YR
1 space available / 2,275 SF
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2700 S St. Peters Pkwy

2700 S St. Peters Pkwy, St. Peters, MO
Space Type

Office
For Lease

$12.00/SF/YR
1 space available / 5,940 SF
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Saint Charles County, MO Office Space for Rent

Office inventory

According to our listing data, Missouri's office market contains 5.1M square feet of space as of 2026.

Missouri Office Market Breakdown by Building Size
Building Size Range	Total Square Feet
50k to 100k Sq. Ft.	1.7M Sq. Ft.
100k to 500k Sq. Ft.	1.4M Sq. Ft.
500k to 1M Sq. Ft.	1M 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 1.7M square feet.

Average Rent for Office Spaces

The average rent for office space in is $21 per square foot. However, 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 $28 per square foot among local listings currently available for lease.

Office Spaces Classes

The office space market in Missouri incorporates a mix of properties of various ages, ratings, construction grades, and other quality indicators. 50.56% of total office listings in this city are in properties rated Class A. Class B accounts for 45.3% of traditional work spaces listed on the leasing market. Class C makes up 4.14% of such listings in Missouri. This data is current as of 2026.

Missouri Office Market Breakdown by Building Class
Class	Total Square Feet	Share of Total Office
A	2.6M	50.56%
B	2.3M	45.3%
C	213.2K	4.14%

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

The most common factor that influences the cost of renting space for your business in any location is the property class rating. Class B space in Missouri costs $21.2 per square foot, on average.

Saint Charles County, MO Office Spaces for Rent

100 Brevco Plaza

1735 South River Road

340 E Mid Rivers Ctr.

6301 Old Highway 94

1270 Jungermann Rd

Hamilton Industrial Court

The Heritage Small Business Hub - The Hub

6700 Keaton Corporate Parkway

2700 S St. Peters Pkwy

Saint Charles County, MO Office Space for Rent

Office inventory

Average Rent for Office Spaces

Office Spaces Classes

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