Compared to the rest of the Metro Atlanta market, the Lilburn region has less expensive rates, so you should have no trouble finding a great deal in this undervalued region.
In the last 90 days, 3 listings have been made available, which means leases most likley are leasing quickly. You'll want to be prepared to tour spaces as quick as possible. About 233% of the available space in the Lilburn 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 720 sqft. Most buildings in this market are close to 1 floors. Most buildings in this area were built in 1986 and are Class C.