The typical asking rate per listing is in the $20's per square foot per year. The Farmers Branch submarket is seeing a a boost in rates. In the last 3 months, the median rate rose $22 per sqft per year.
Compared to the rest of the DFW Metroplex market, the Farmers Branch submarket has lower rates, so you should have no trouble finding a great deal in this depreciated region.
In the last 90 days, 381 listings have been made available, so you'll want to check back regularly for new listings. About 14% of the office spaces in the Farmers Branch are subleases, so you might be able to find a shorter term or below market rent. There aren't many listings below 2,000 square feet on the market, so finding a space for a small business might be tough.
The standard measurement for office space in this area is around 2,370 sqft. Most buildings in this region are around 4 stories. Most buildings in this market were built in 1982 and are Class A.