18508 Madison Ave, Castro Valley, CA 94546
Single-family home
Sold August 2026
Listing Agent: Jessica Nance (DRE #01960286) · Listing Office: Compass · Contact: 925-257-0305 · Bought with: John Barakett · Coldwell Banker · MLS #41135921 · Source: CRMLS
How this sale compares
18508 Madison Ave sold for $1,175,000 in August 2026, at its full list price, after 65 days on the market. It was first listed at $1,225,000. That works out to $539 per square foot on 2,178 square feet. Across 143 closed sales in 94546 over the last 12 months, the median sold price is $1,064,000 and the median is $661 per square foot, 23% above this sale's $539.
| Quarter | Closed sales in 94546 | Median sold price |
|---|---|---|
| Q1 2026 | 14 | $1,010,000 |
| Q2 2026 | 80 | $1,011,944 |
| Q3 2026 | 47 | $1,122,000 |
| Q4 2026 | 2 | $1,400,000 |
Figures are MLS-reported closed sales (CRMLS); ZIP medians cover the last 12 months. Nalren does not estimate values. Recently sold in Castro Valley · Homes for sale in 94546
Description
Tucked along a quiet Castro Valley street, this inviting home offers the perfect balance of timeless character, everyday comfort, and exciting potential. From the moment you arrive, there's a sense that this is a home that's been thoughtfully cared for and is ready for its next chapter. Inside, hardwood floors add warmth throughout much of the home, while the functional four-bedroom, two-bath layout provides flexibility for growing families, remote work, or multigenerational living. Every space feels comfortable, welcoming, and filled with natural light. The heart of the home is the expanded dining room, where walls of windows frame views of the backyard and create an airy gathering space for everything from casual breakfasts to holiday celebrations. It's a room designed for connection and one that naturally draws everyone together. Outside, the property continues to impress with multiple outdoor spaces to relax, entertain, garden, or simply enjoy the peaceful surroundings. Above the backyard, the detached structure has been transformed into a versatile bonus room. Beneath it, a spacious workshop offers exceptional flexibility for hobbies, storage, creative studio, or the potential to explore an ADU conversion (buyer to verify). Whether you're looking for a home to enjoy immediately or one you can thoughtfully personalize over time, this property offers the rare combination of move-in-ready comfort, versatile spaces, and the opportunity to build lasting value in a desirable Castro Valley location.
Listing description from the August 2026 sale, as reported to CRMLS.
Sale history
Recent sales near 18508 Madison Ave
5133 Madison Ln: Sold $1,448,000 · 4 bd · 3 ba · 2,012 sqft · Jun 2026 · 0.2 mi
Coldwell Banker Realty | DRE #02066062
Buyer's agent: Xiao Mu Lin, Coldwell Banker Realty | DRE #0189794018650 Center St: Sold $1,150,000 · 3 bd · 2 ba · 1,681 sqft · Jul 2026 · 0.2 mi
RE/MAX Accord | DRE #02137730
Buyer's agent: Sylvana Wong, RE/MAX Accord | DRE #0129761018100 De Souza Pl: Sold $1,790,000 · 4 bd · 4 ba · 3,400 sqft · Jul 2026 · 0.2 mi
KW Advisors East Bay | DRE #01400141
Buyer's agent: Cathy Lee, JODI Realty | DRE #018173084880 Mancini Dr: Sold $1,310,000 · 3 bd · 2 ba · 1,340 sqft · Jun 2026 · 0.3 mi
KW Advisors East Bay | DRE #01280917
Buyer's agent: Sarah Mendoza, KW Central Valley | DRE #0228842318019 Center St: Sold $1,550,000 · 3 bd · 2 ba · 2,655 sqft · Sep 2026 · 0.3 mi
19054 Vannoy Court: Sold $1,380,000 · 3 bd · 2 ba · 1,603 sqft · Sep 2026 · 0.5 mi
19009 Helton St: Sold $1,400,000 · 4 bd · 3 ba · 2,134 sqft · Aug 2026 · 0.5 mi
The Agency | DRE #01361329
Buyer's agent: OUT OF AREA, OUT OF AREA | DRE #000000005305 Willow Glen Pl: Sold $1,100,000 · 2 bd · 3 ba · 1,628 sqft · Jul 2026 · 0.5 mi
Redfin | DRE #02032111
Buyer's agent: Lisa Na, Hanhaus Real Estate, Inc. | DRE #02150837
Closed sales reported in 94546, nearest first, last 12 months. All recent sales in Castro Valley →