The typical asking rate per listing is in the $10's per square foot per year. The Dalworthington Gardens region is going through a an increase in rates. In the last 3 months, the median rate rose $16 per sqft per year.
Compared to the rest of the DFW Metroplex market, the Dalworthington Gardens submarket has lower rates, so you should have no trouble finding a great deal in this depreciated region.
In the last 90 days, 1 listings have come on the market, which means new listings are probably going fast. You'll want to be prepared to tour spaces as quick as possible. 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 1,200 sqft. Most properties in this area are approximately 1 floors. Most buildings in this area were built in 2000 and are Class C.