On average, listings lease in the $20's per square foot per year. The Norfolk submarket is going through a decline in rates. In the last 3 months, the median rate fell $8 per sqft per year. That's a 28% decline in rent.
In the last 90 days, 58 listings have been listed, so you'll want to check back regularly for new listings. About 3% of the available space in the Norfolk are subleases, so you will probably have to consider a longer term 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 1,800 sqft. Most properties in this market are around 3 stories. Most buildings in this region were built in 1981 and are Class A.