Here is a fresh snapshot of the Affton and ZIP 63123 housing market as of November 10, 2026, drawn from the latest figures each major market tracker has published. Sources report on slightly different periods, so the numbers below are attributed and dated rather than blended into one figure.
Home values and sale prices
Redfin's 63123 market page, as of September 2026, shows a three-month median sale price of $264,922, up about 5.9% year over year, with the average house price around $255,000 in the most recent month and a median sale price per square foot of about $178. Zillow's Affton page puts the average home value near $247,243 in its July 31, 2026 update, up about 2.5% year over year. RealtyTrac's October 2026 report lists a median sold price of about $260,000 for the ZIP. As a benchmark, 9607 Reavis Rd was listed at $289,900: a fully rehabbed 4-bedroom, 2-bath home with a finished walkout lower level.
Days on market
Redfin reports that homes in 63123 sell after about 10 days on average, down from about 13 a year earlier, with hot homes going pending in around 5 days. Movoto's October 2026 listing-based figure puts the average at about 41 days on market with a median list price around $260,000. The gap reflects methodology: closed-sale trackers show fast sales while listing-derived medians include inventory that sits longer. Well-priced, move-in-ready homes continue to move quickly.
Inventory and sales volume
Movoto counts roughly 184 homes for sale in the 63123 ZIP in its October 2026 report, and RealtyTrac shows about 926 active listings. Redfin records about 187 homes sold in 63123 over the three months ending September 2026.
What it means for buyers and sellers
Redfin still rates 63123 among its most competitive markets, with homes selling close to list price on average. Different sources measure the market differently, so buyers should compare against recent closed sales in their price range, and sellers should price against current comparables. These are research figures, not guarantees: every home is different, and values depend on condition, size, and exact location.
Want a grounded take on what is happening in your price range? Tracey can walk you through the latest Affton data and how it applies to your situation.