The typical asking rate per listing is in the $10's per square foot per year. The Urbandale region is experiencing a a boost in rates. In the last 3 months, the median rate increased $18 per sqft per year.
In the last 90 days, 75 listings have been listed, so you'll want to check back regularly for new listings. About 63% of the listings in the Urbandale are subleases, so you might be able to snag a great spot on a short term. 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 1,440 sqft. Most properties in this area are approximately 1 floors. Most buildings in this area were built in 1994 and are Class A.