Most listings are in the $10's per square foot per year. The Martinsburg region is going through a a rise in rates. In the last 3 months, the median rate increased $20 per sqft per year.
In the last 90 days, 0 listings have been made available, which means listings might be leasing quickly. You'll want to be prepared to tour spaces as quick as possible. About Inf% of the available space in the Martinsburg 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 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 1,500 sqft. Most buildings in this market are around 2 stories. Most buildings in this region were built in 1962 and are Class C.