In the last 90 days, 113 listings have been made available, so you'll want to check back regularly for new listings. About 1% of the office spaces in the St. Charles County are subleases, so you will probably need to consider the implications of signing a direct lease with the building. There aren't many listings below 2,000 square feet posted, so finding a space for a small business might be tough.
The standard measurement for office space in this area is around 1,360 sqft. Most properties in this region are around 1 stories. Most buildings in this region were built in 1999 and are Class B.