On average, listings lease in the $10's per square foot per year. The Henderson County submarket is experiencing a a boost in rates. In the last 3 months, the median rate went up $20 per sqft per year. That's a Inf% increase in rent.
In the last 90 days, 31 listings have come on the market, which means listings most likley are leasing quickly. You'll want to be prepared to make an offer immediately. About 3% of the office spaces in the Henderson County are subleases, so you will probably have to focus your search on direct office leases. 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 1,360 sqft. Most properties in this market are around 2 stories. Most buildings in this area were built in 1986 and are Class B.