In the last 90 days, 0 listings have been listed, which means spaces most likley are going fast. You'll want to be prepared to make an offer immediately. About NaN% of the available leases in the Dallas 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 sqft. Most properties in this market are approximately 1 stories. Most buildings in this area were built in 2005 and are Class B.