The typical asking rate per listing is in the $10's per square foot per year. The Johnson City region is going through a a rise in rates. In the last 3 months, the median rate rose $18 per sqft per year.
In the last 90 days, 63 listings have been made available, so you'll want to check back regularly for new listings. About 27% of the office spaces in the Johnson City are subleases, so you might be able to sign a shorter term by taking over a previous lease. 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 2,080 sqft. Most buildings in this region are close to 1 stories. Most buildings in this area were built in 1925 and are Class A.