Most listings are in the $20's per square foot per year. The Las Vegas submarket is seeing a a boost in rates. In the last 3 months, the median rate rose $2 per sqft per year. That's a 7% increase in rent.
In the last 90 days, 636 listings have been made available, so you'll want to check back regularly for new listings. About 2% of the listings in the Las Vegas 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 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 2,310 sqft. Most properties in this region are around 2 stories. Most buildings in this market were built in 1999 and are Class B.