On average, listings lease in the $20's per square foot per year. The Oklahoma County region is going through a a rise in rates. In the last 3 months, the median rate rose $2 per sqft per year. That's a 10% increase in rent.
In the last 90 days, 616 listings have been made available, so you'll want to check back regularly for new listings. About 1% of the available space in the Oklahoma County are subleases, so you will probably have to focus your search on direct office leases. 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 2,480 sqft. Most buildings in this region are around 2 stories. Most buildings in this region were built in 1982 and are Class B.