Most listings are in the $20's per square foot per year. The Delaware County submarket is experiencing a a boost in rates. In the last 3 months, the median rate rose $8 per sqft per year. That's a 50% increase in rent.
In the last 90 days, 10 listings have come on the market, which means spaces most likley are going fast. You'll want to be prepared to tour spaces as quick as possible. About 260% of the available leases in the Delaware County 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 2,400 sqft. Most properties in this region are approximately 1 floors. Most buildings in this area were built in 1969 and are Class A.