Most listings are in the $10's per square foot per year. The Pasadena submarket is going through a a rise in rates. In the last 3 months, the median rate went up $1 per sqft per year. That's a 4% increase in rent.
Compared to the rest of the Houston Metro market, the Pasadena region has less expensive rates, so you should have no trouble finding a great deal in this undervalued submarket.
In the last 90 days, 36 listings have been posted online, which means new availabilities might be leasing quickly. You'll want to be prepared to tour spaces as quick as possible. About 3% of the available space in the Pasadena are subleases, so you will probably have to consider a longer term lease. 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 1,440 sqft. Most properties in this region are close to 2 floors. Most buildings in this region were built in 1988 and are Class B.