Steven M. Puricelli and Carolyn R. Puricelli have listed for sale a four-bedroom, four-bath home at 836 Timber Glen Drive in Ballwin for $439,900.

The 2,631-square-foot home was built in 1994. Jean Hostman of Re/Max Suburban is the listing agent.

Puricelli works at Monsanto Inc., a Chesterfield-based designer of sulfuric acid process technology and related products custom engineered for acid plant environments.

He earned his undergraduate degree from the University of Missouri-Rolla and his M.B.A. from the Olin Business School at Washington University in St. Louis.

According to BlockShopper.com, there have been 91 home sales in Unincorporated Winchester during the past 12 months, with a median sales price of $191,000.

Address: 836 Timber Glen Drive