Davis, who also updated commissioners on a proposed $9 million judicial complex, knows the layout like the back of his hand.
Jefferson County employs about 200 people, elected and appointed, most of whom work at the downtown campus.
According to Davis, the Reiger building, actually two connected buildings just east of the courthouse and fronting Washington Street, houses the assessor's offices on the first floor, and planning and zoning on the second floor in the first Reiger building. The adjoining building is home to the mapping and tax offices and soon will provide space for the county's five probation officers and two secretaries. Those offices are moving from the Mason building three doors up.
Next up Washington Street is the Smoot Building, home to capital planning and management and impact fees.
Then comes the Mason Building. Emergency services occupies the basement, and engineering and permits take the first floor. The second floor will be the new home of planning and zoning on June 1, Davis said.
The Hunter Building, once a stately private brick home, houses the county commission's administrative offices, including that of County Administrator Leslie Smith upstairs.
A small building facing Samuel Street behind the Hunter building is the county maintenance department.
The most modern office facility in the complex is the Jailhouse Annex, the converted former Jefferson County Jail, which now houses the circuit clerk's offices, a family courtroom and its supporting offices.
The annex is connected to the Jefferson County Courthouse with its original courtroom upstairs. The county commissioners' meeting room and county clerk's offices are on the first floor.
Kirk told commissioners Thursday that the county will spend $700,000 on architect and civil engineering fees for a proposed 40,000-square-foot judicial building to be constructed in the parking lot on the Liberty Street side behind the courthouse.
Pegged at around $9 million to build, initial plans call for two circuit courtrooms, judge's chambers, supporting offices, a family courtroom and the sheriff's tax office.
The new building will be connected to the courthouse and jailhouse annex.
The old courtroom will still be the largest in the county and will be needed for major trials and special ceremonies, Davis said.
Construction on the new judicial center could begin as soon as the spring of 2010, he said.