Compared to the rest of the Houston Metro market, the Bellaire region has greater rates, and you'll have to negotiate above asking rent to be in this hot region.
In the last 90 days, 29 listings have been made available, which means listings 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 posted, so finding a space for a small business might be tough.
The standard measurement for office space in this area is around 1,238 sqft. Most properties in this area are approximately 5 floors. Most buildings in this market were built in 1977 and are Class B.