On average, listings lease in the $10's per square foot per year. The Duncanville submarket is going through a decrease in rates. In the last 3 months, the median rate decreased $5 per sqft per year. That's a 19% decrease in rent.
Compared to the rest of the DFW Metroplex market, the Duncanville submarket has lower rates, so you should have no trouble finding a great deal in this depreciated submarket.
In the last 90 days, 3 listings have been made available, which means listings might be 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 1,660 sqft. Most buildings in this market are close to 1 floors. Most buildings in this market were built in 2003 and are Class B.