Dr. Toniya Singh and her husband, Dr. Inderjit Singh, have listed for sale a four-bedroom, 3.5-bath home at 843 Courtwood Lane in Ballwin for $519,000.

The Singhs paid $365,000 for the property in July 1999. The 2,950-square-foot house in the Manors of Town subdivision was built in 1993. Jill Kelly of Coldwell Banker Gundaker is the listing agent for the home.

Dr. Toniya Singh specializes in internal medicine at St. Louis Heart & Vascular. She has been in medical practice for 10 years.

She received her M.D. from the University of Delhi Lady Harding Medical College and completed her residency in internal medicine at the St. Louis University School of Medicine.

Dr. Inderjit Singh specializes in internal medicine with a sub-specialty in nephrology at Metro Hypertension & Kidney in St. Louis. He has been in medical practice for 20 years.

He received his M.D. from the Delhi University Maulana Azad Medical College and his residency in nephrology at the University of Michigan Hospitals & Health Centers.

According to BlockShopper.com, there were 45 sales in Ballwin in 2008, with a median sales price of $196,125.

Address: 843 Courtwood Lane
Buyer(s): Jennifer Tilly
Seller(s): Inderjit Singh (and wife) and Toniya Singh (and husband)
Sale date: Dec. 31, 2009