Utah County commissioners approved an agreement Monday to lease space in the old County Courthouse to Sen. Orrin Hatch, R-Utah.

The agreement calls for Hatch to lease 660 square feet on the building's third floor in Room 320 beginning May 1. The lease expires Dec. 31, 1994, when Hatch's term expires. Hatch's lease payments will be $550 per month.Rep. Bill Orton, D-Utah, earlier signed a lease for space in the old building. County officials are negotiating with Sen. Jake Garn, R-Utah, and Rep. Wayne Owens, D-Utah, on lease agreements for space in the building.