On average, listings lease in the $30's per square foot per year. The Central Houston submarket is going through a a boost in rates. In the last 3 months, the median rate increased $4 per sqft per year. That's a 16% rise in rent.
Compared to the rest of the Houston Metro market, the Central Houston region has higher rates, and you'll need to make a great offer to be in this hot submarket.
In the last 90 days, 260 listings have been listed, so you'll want to check back regularly for new listings. About 5% of the listings in the Central Houston are subleases, so you will probably have to consider a longer term lease. 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 1,280 sqft. Most buildings in this area are approximately 6 floors. Most buildings in this region were built in 1975 and are Class B.