Data as of April 2026. Source: Realtor.com.
The Castro Valley, CA real estate market currently shows 77 active listings, with 32 pending sales. Homes are averaging 28.3 days on the market before going under contract.
Inventory has tightened compared to last year, with 38 fewer active listings — creating more competition among buyers.
Homes are selling faster, averaging 28.3 days on market compared to 28.6 days last year.
The median listing price has fallen 11.1% year-over-year, from $1,156,264 to $1,027,376.
Whether you are buying or selling in Castro Valley, CA, SELL123.com can help you save significantly on commission — typically 2% compared to traditional 5% broker fees. Call (240) SELL-123 for a free consultation.
Population: 60,709 · Density: 862.0/mi² · Median household income: $139,095
Typical home value: $1,009,615 · Homeownership: 72.3%