On average, listings lease in the $20's per square foot per year. The Sparks region is going through a a boost in rates. In the last 3 months, the median rate went up $4 per sqft per year. That's a 20% rise in rent.
In the last 90 days, 19 listings have been made available, which means office spaces are probably going fast. You'll want to be prepared to tour spaces as quick as possible. About 74% of the listings in the Sparks 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 1,000 sqft. Most properties in this region are close to 1 stories. Most buildings in this market were built in 1981 and are Class B.