Most listings are in the $20's per square foot per year. The Irving region is experiencing a decrease in rates. In the last 3 months, the median rate decreased $2 per sqft per year. That's a 7% decline in rent.
Compared to the rest of the DFW Metroplex market, the Irving region has higher rates, and you'll need to pay a premium to be in this hot submarket.
In the last 90 days, 352 listings have been listed, so you'll want to check back regularly for new listings. About 5% of the available space in the Irving are subleases, so you will probably need to sign a longer term lease with the landlord directly. 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 1,040 sqft. Most buildings in this area are around 2 stories. Most buildings in this market were built in 1985 and are Class B.