Most listings are in the $20's per square foot per year. The Colonial Park region is going through a an increase in rates. In the last 3 months, the median rate rose $25 per sqft per year.
In the last 90 days, 12 listings have been posted online, which means new availabilities most likley are going fast. You'll want to be prepared to make an offer immediately. About 67% of the available space in the Colonial Park are subleases, so you might be able to find a shorter term or below market rent. 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 1,360 sqft. Most properties in this area are around 2 floors. Most buildings in this region were built in 2000 and are Class A.