ATLANTA—NKF is taking a then-and-now look at large blocks of office space in Atlanta's three major submarkets. The report looks at Downtown, Midtown, and Buckhead.

According to the research, office tenants looking for 50,000 to 99,000 square feet in the three core office leasing markets have very limited options. That, the firm says, will likely result in office tenants coming out to the market earlier.

More specifically, there's an increase in the overall number of large blocks of office space available downtown. In Midtown, the number of buildings with availability over 25,000 square feet has stayed the same, but the composition has changed. Meanwhile, in Buckhead, there's a decrease in supply of 50,000 to 99,999-square-foot options and a decrease in sublet spaces available.