Most listings are in the $20's per square foot per year. The DFW Metroplex region is seeing a decline in rates. In the last 3 months, the median rate fell $1 per sqft per year. That's a 3% decrease in rent.
In the last 90 days, 3183 listings have been posted online, so you'll want to check back regularly for new listings. About 62% of the listings in the DFW Metroplex are subleases, so you might be able to sign a shorter term by taking over a previous lease. 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 1,580 sqft. Most buildings in this area are around 2 floors. Most buildings in this region were built in 1985 and are Class B.