On average, listings lease in the $10's per square foot per year. The Richardson region is experiencing a decline in rates. In the last 3 months, the median rate decreased $3 per sqft per year. That's a 11% decrease in rent.
Compared to the rest of the DFW Metroplex market, the Richardson submarket has smaller rates, so you should have no trouble finding a great deal in this depreciated region.
In the last 90 days, 100 listings have been posted online, so you'll want to check back regularly for new listings. About 8% of the office spaces in the Richardson are subleases, so you will probably need to consider the implications of signing a direct lease with the building. There aren't many listings below 2,000 square feet posted, so finding a space for a small business might be tough.
Even though the median size is 2,630 sqft, there are still 0 spaces below 2,000 sqft. Most properties in this market are close to 2 stories. Most buildings in this region were built in 1985 and are Class B.