The typical asking rate per listing is in the $20's per square foot per year. The Baytown region is seeing a an increase in rates. In the last 3 months, the median rate increased $22 per sqft per year.
Compared to the rest of the Houston Metro market, the Baytown submarket has less expensive rates, so you should have no trouble finding a great deal in this discounted submarket.
In the last 90 days, 7 listings have been made available, which means leases are probably leasing quickly. You'll want to be prepared to make an offer immediately. There aren't many listings below 2,000 square feet available, so finding a space for a small business might be tough.
The standard measurement for office space in this area is around 1,700 sqft. Most buildings in this area are approximately 1 stories. Most buildings in this region were built in 1985 and are Class B.