Most listings are in the $20's per square foot per year. The Liberty submarket is experiencing a a boost in rates. In the last 3 months, the median rate increased $24 per sqft per year.
In the last 90 days, 48 listings have been posted online, so you'll want to check back regularly for new listings. About 21% of the available space in the Liberty are subleases, so you might be able to snag a great spot on a short term. 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 1,450 sqft. Most properties in this area are around 1 floors. Most buildings in this region were built in 1983 and are Class B.