AJ's Attic
Antique storeAJ's Attic is a antique store in Castro Valley, CA. You’ll find it at 20502 B Stanton Ave, Castro Valley, CA 94546. It’s one of 2 secondhand and resale shops we track in Castro Valley.
We don’t have hours on file for this location yet — the phone number or website below is the fastest way to check before visiting.
Antique dealers price by research, age, and provenance, so expect fewer accidental bargains but far more depth per shelf — furniture, glass, jewelry, and collectibles with real history. Many dealers negotiate on larger pieces, especially for cash.
6 more secondhand shops are within driving distance, listed below, so it can anchor a longer thrifting circuit.
Store information
- Address
- 20502 B Stanton Ave, Castro Valley, CA 94546
- Phone
- +15108538833
Before you go
- Bring cash and ask politely whether there is any flexibility on price — many dealers discount 10–20% for cash.
- Check marks, joints, and repairs; a phone photo of the maker’s mark lets you look up comparable sold prices before you commit.
- Measure doorways and your vehicle before falling for a large piece — most antique stores are cash-and-carry.
Thrift & secondhand stores near Castro Valley
Michele Markovich Antiques
Antique store20407 Santa Maria Ave, Castro Valley, CA0.6 mi
The Hidden Treasure Corner
Thrift store18565 Mission Blvd, Hayward, CA1.0 mi
Monday: 10:00 AM – 6:00 PM; Tuesday: 10:00 AM – 6:00 PM; Wednesday: 10:00 AM – 6:00 PM; Thursday: 10:00 AM – 6:00 PM; Friday: 10:00 AM – 6:00 PM; Saturday: 10:00 AM – 6:00 PM; Sunday: 10:00 AM – 6:00 PM
Ryans Racks
Secondhand store1223 A St, Hayward, CA1.4 mi
Monday: Closed; Tuesday: Closed; Wednesday: 2:00 PM – 6:00 PM; Thursday: 2:00 PM – 6:00 PM; Friday: 2:00 PM – 6:00 PM; Saturday: 2:00 PM – 6:00 PM; Sunday: Closed
Second Room
Secondhand store1024 B St #1, Hayward, CA1.5 mi
Monday: Closed; Tuesday: 11:00 AM – 5:00 PM; Wednesday: 11:00 AM – 5:00 PM; Thursday: 11:00 AM – 5:00 PM; Friday: 11:00 AM – 7:00 PM; Saturday: 11:00 AM – 8:00 PM; Sunday: 11:00 AM – 6:00 PM
Falcon Antiques
Antique store1028 B St, Hayward, CA1.5 mi
Antique Connection
Antique store1033 B St, Hayward, CA1.5 mi
Monday: 10:30 AM – 4:30 PM; Tuesday: 10:30 AM – 4:30 PM; Wednesday: 10:30 AM – 4:30 PM; Thursday: 10:30 AM – 4:30 PM; Friday: 10:30 AM – 4:30 PM; Saturday: 10:30 AM – 4:30 PM; Sunday: 10:30 AM – 4:30 PM
🏺 How to Price Antiques and Collectibles You Find at Thrift Stores →
A research method for valuing old things: identifying marks and makers, finding sold comparables, grading condition, weighing rarity against demand, knowing when an appraisal is worth paying for, and avoiding reproductions.
🏠 How Estate Sales Work →
What estate sales are, how to find them, how pricing and discount days work, sign-in sheets and early lines, last-day half-off strategy, etiquette, and how they compare with thrift stores.
Frequently asked questions
Where is AJ's Attic located?
AJ's Attic is located at 20502 B Stanton Ave, Castro Valley, CA 94546.
What kind of store is AJ's Attic?
AJ's Attic is a antique store in Castro Valley, CA.
Are there other thrift or secondhand stores near AJ's Attic?
Yes — we list 6 other secondhand, thrift, consignment, vintage, or antique stores within about 50 miles. See the nearby stores section on this page.
Browse all thrift stores in Castro Valley, CA or explore all of California. Spot an error? Send a correction.
Listing last updated from public listings and open map data.