Most listings are in the $20's per square foot per year. The Sussex County submarket is experiencing a a rise in rates. In the last 3 months, the median rate rose $21 per sqft per year.
In the last 90 days, 7 listings have been listed, which means spaces are probably leasing quickly. You'll want to be prepared to make an offer immediately. About 229% of the listings in the Sussex 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 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 1,200 sqft. Most properties in this region are around 2 stories. Most buildings in this area were built in 2006 and are Class A.