Is Ballwin, MO 63021 a buyer’s or seller’s market?

The Ballwin housing market right now

In the three months ending August 31, 2026, 53% of homes in Ballwin, MO 63021 sold above their list price, the typical home went under contract in 8 days and there were 1.4 months of supply. Under four months of supply means sellers have the edge: expect competition for well-priced homes. That’s based on 249 home sales.

Compared with the same period a year earlier, the share selling over asking rose from 51%, homes sold about as fast and the median sale price fell 1% to $380,335. Overall, Ballwin is about as competitive as it was a year ago.

Within St. Louis County, homes here sell faster than in 75% of the county’s ZIP codes, and sell more often over asking than in 88%. On our competition score, Ballwin ranks #12 of 263 MO ZIP codes with enough sales (score 92 out of 100).

Nearby, buyers who want less competition could look at Saint Louis 63133 (10% sold over asking) or Saint Louis 63137 (16% sold over asking), while Saint Louis 63132 (62% sold over asking) and Saint Louis 63143 (59% sold over asking) are even more competitive.