On average, listings lease in the $20's per square foot per year. The Spring Valley region is going through a a rise in rates. In the last 3 months, the median rate rose $25 per sqft per year.
Compared to the rest of the Las Vegas–Henderson–Paradise market, the Spring Valley submarket has less expensive rates, so you should have no trouble finding a great deal in this undervalued submarket.
In the last 90 days, 70 listings have come on the market, so you'll want to check back regularly for new listings. About 126% of the office spaces in the Spring Valley 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 posted, so finding a space for a small business might be tough.
The standard measurement for office space in this area is around 2,420 sqft. Most buildings in this market are close to 2 stories. Most buildings in this area were built in 2005 and are Class B.