Compared to the rest of the DFW Metroplex market, the Midlothian submarket has greater rates, and you'll have to negotiate above asking rent to be in this hot region.
In the last 90 days, 5 listings have been made available, which means leases are probably leasing quickly. You'll want to be prepared to make an offer immediately. About 40% of the listings in the Midlothian are subleases, so you might be able to snag a great spot on a short term. 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 1,150 sqft. Most buildings in this region are approximately 1 floors. Most buildings in this region were built in 2008 and are Class A.