Most listings are in the $20's per square foot per year. The Harris County region is seeing a decrease in rates. In the last 3 months, the median rate decreased $2 per sqft per year. That's a 7% decrease in rent.
In the last 90 days, 2607 listings have been listed, so you'll want to check back regularly for new listings. About 3% of the available space in the Harris 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 posted, so finding a space for a small business might be tough.
The standard measurement for office space in this area is around 1,160 sqft. Most buildings in this market are close to 3 floors. Most buildings in this region were built in 1982 and are Class B.