Most listings are in the $30's per square foot per year. The Prosper submarket is seeing a a rise in rates. In the last 3 months, the median rate went up $34 per sqft per year.
Compared to the rest of the DFW Metroplex market, the Prosper submarket has more expensive rates, and you'll need to pay a premium to be in this hot submarket.
In the last 90 days, 0 listings have come on the market, which means listings most likley are going fast. You'll want to be prepared to make an offer immediately. About NaN% of the listings in the Prosper 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 available, so finding a space for a small business might be tough.
The standard measurement for office space in this area is around 2,000 sqft. Most buildings in this market are close to 1 floors. Most buildings in this market were built in 2009 and are Class B.