On average, listings lease in the $20's per square foot per year. The Granville submarket is seeing a a rise in rates. In the last 3 months, the median rate rose $22 per sqft per year.
In the last 90 days, 1 listings have been listed, which means spaces most likley are going fast. You'll want to be prepared to make an offer immediately. 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 buildings in this area are approximately 2 floors. Most buildings in this region were built in 2007 and are Class B.