Frost moves from 816 Congress, a building that's now called Frost Bank Plaza, where it has its downtown Austin operations. They include its financial management group and Frost Insurance Agency divisions. Frost also will have a retail banking operation in the lobby of Congress at Fourth.

Tim Hendricks, senior vice president of development at Atlanta-based Cousins, said the 525,000-sf building is due to open in January 2004. Frost, based in San Antonio, plans to move in during the first quarter. The move is subject to approval from federal bank regulators.

Information on the terms of the lease were not available, but most retail banking operations take space long term. The leases of most other tenants in the building are for long term.