On average, listings lease in the $10's per square foot per year. The St. Charles County submarket is seeing a a boost in rates. In the last 3 months, the median rate went up $1 per sqft per year. That's a 3% increase in rent.
In the last 90 days, 80 listings have come on the market, so you'll want to check back regularly for new listings. There aren't many listings below 2,000 square feet on the market, so finding a space for a small business might be tough.
The standard measurement for office space in this area is around 1,500 sqft. Most properties in this market are close to 1 stories. Most buildings in this region were built in 2000 and are Class B.