Extra Space Storage sets the standard for clean, secure, and hassle-free self storage. We offer a large selection of unit sizes with a range of convenient storage options to fit your specific needs, and our team of experts is ready to help you find the right unit. Whether you're moving, downsizing, or decluttering, we're here to make finding the right storage unit quick and easy. Reserve online, give us a call, or stop by today.
Explore offerings from Extra Space Storage on 3939 Castro Valley Blvd in Castro Valley, with popular services available at this location.
1372 Services
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Services
Self Storage
Extra Space Storage offers a wide range of secure self storage solutions for residential and commercial needs. Our storage units are rented on a month-to-month basis and come in a variety of sizes from 5x5 to 10x30 (with additional sizing available).
Online Payments
Extra Space Storage makes it easy to pay your storage rental bill online. Simply log into your account to access statements, make a payment, and more. You can make one-time online payments or even set up recurring payments.
Packing & Moving Supplies
Extra Space Storage sells packing and moving supplies like boxes, bubble wrap, packing tape, rope, moving kits, and more. We have all of the moving supplies you need for a successful move!
Drive Up Access
Drive-up access units at Extra Space Storage allow you to pull your vehicle directly next to your storage unit to easily load and unload items. Some locations even allow drive-up units to be used for vehicle storage for cars, motorcycles, and more.
24 Hour Access Available
Extra Space Storage has 24-hour access available for when you need to get into your unit after regular hours at select locations. Ask the manager at your local Extra Space Storage for more details.
Climate Controlling
Climate control at Extra Space Storage can help protect sensitive items from extreme temperatures. These units typically stay between 55 and 80 degrees year-round.
Electronic Gate Access
Extra Space Storage facilities with electronic gate access have a main gate or door that can only be opened with a code entered on an electronic keypad. Each customer is given a unique access code, allowing managers to see who's coming and going at all times.
Package Placement
Extra Space Storage facilities can accept package deliveries on behalf of customers. For more information about package acceptance and placement, contact our team!
Deliveries Accepted
Some Extra Space Storage locations allow deliveries to be accepted. With delivery acceptance, a staff member will be available to accept your mail and keep it in a secure place until you pick it up.
Contactless Rental
Extra Space Storage offers contactless rental, allowing customers to reserve storage units without person-to-person contact. Our employees can help you find a storage solution through email or over the phone. Customers can also conveniently rent units, sign leases, and process payments online.
Wide Drive Aisles
Wide-drive aisles provide plenty of space for larger vehicles and moving trucks to get in and out of Extra Space Storage when accessing outdoor and drive-up storage units.
Commercial Use Allowed
Extra Space Storage offers small and large storage units for business use. Commercial storage features can include extended access hours, climate control, warehouse space, and more. Commercial storage is a great solution if your business has a surplus of supplies or inventory.
Solar Power
Extra Space Storage has solar installations at over 400 facilities to improve our sustainability efforts and reduce our consumption. Our solar power initiative is one of the many reasons why Extra Space Storage is the highest-rated self storage company in the U.S. for sustainability.
Reviews
4.8
586 reviews
5 stars
534
4 stars
28
3 stars5
2 stars4
1 star
15
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natanya neff
Jun 1, 2026
5.0
Stephan was very friendly and knowledgeable. Space is clean and security is good.
JJ
J
May 10, 2026
5.0
Took my mom out for mother's day breakfast at Elio's and found an available 5x5 here for $87.00 on my phone. Ordered it on my phone in less than 5 minutes and downloaded the app.
Remote access to the gate via the app and easily found my spot in the back. The place is clean and the 5x5 is perfect for me.
Located right near 580 freeway as well. Didnt even have to go inside the office, as my lock was waiting for me inside the unit! The most seamless transaction you can imagine.
HC
Harry Chen
Mar 9, 2026
5.0
Great service and friendly.
HJ
Heather J
Jan 16, 2026
5.0
Always clean and easy to use. The staff were helpful quickly with any questions we had. The elevators occasionally go out in the building I was using but I always received a notification if they are out and when they're back in order so I can plan accordingly. At one point I switched to a smaller unit and the staff were very helpful in that process. Definitely will use this facility again!
Frequently Asked Questions About Extra Space Storage
What storage unit size do I need?
The best way to determine which storage option is right for you is with our helpful Storage Unit Size Guide! It will help you estimate how many boxes and non-packed items, such as furniture and appliances, you can fit into each storage unit.
What type of storage unit do I need?
Many factors determine your best storage solution. Do you want the convenience of a ground-floor unit? Do your belongings need climate control? What about vehicle storage? We have online resources to help you explore these options to find your ideal storage unit.
What are your storage unit prices?
Monthly rates can be found online and vary by facility, unit size, features, and local market. Please use our site search tools to find pricing at a facility near you.
What's the difference between office, access, and gate hours?
The office hours are the hours of operation for the property. During these hours the Store Manager will be available to assist you with your storage needs or moving and packing supplies. The gate hours are the hours of the property, and when your unit can be accessed.
Can I buy boxes or other packing products from Extra Space Storage?
Extra Space Storage offers a variety of moving and packing supplies online and at local facilities for purchase.
What areas does Extra Space Storage serve?
Extra Space Storage serves residents of Castro Valley, Fairview, Ashland, and Cherryland.
What is the closest intersection to Extra Space Storage?
Extra Space Storage is located on Castro Valley Blvd between Bonnie Ln and I-580.
Is Extra Space Storage close to any colleges?
Extra Space Storage is about 4 miles from California State University East Bay, making us a great option for college students who need affordable storage during summer break or while studying abroad.
Do you offer climate-controlled storage units?
Most Extra Space Storage facilities offer climate-controlled storage units as an option for anyone storing temperature sensitive items, but there are also standard storage units that don’t include climate control.
Do you have drive-up storage units?
Yes! Whether you’re moving, storing a vehicle, or using commercial storage, drive-up access is one of the best storage features available at Extra Space Storage! Because you can pull a vehicle right up to your unit, it makes moving large, heavy items—like furniture or equipment—in and out of your unit much easier.
What are the operating hours of Extra Space Storage in Castro Valley?
Extra Space Storage is open daily from 6:00 AM to 10:00 PM, including weekends.
Does Extra Space Storage offer climate-controlled units?
Yes, they offer climate-controlled storage units for temperature-sensitive items, along with standard non-climate controlled units.
Can I access my storage unit outside of office hours?
Yes, gate access is available daily from 6:00 AM to 10:00 PM, allowing you to access your unit even when the office is closed.
What types of payment methods are accepted?
Extra Space Storage accepts American Express, Apple Pay, cash, check, Discover, invoice, Mastercard, and Visa.
Does Extra Space Storage provide moving and packing supplies?
Yes, they offer a variety of moving and packing supplies including boxes, available both online and at the facility.
Are there any special promotions for renting storage units?
Yes, you can rent online today to get up to 40% off storage.
Where is Extra Space Storage located in Castro Valley?
It is located at 3939 Castro Valley Blvd, between Bonnie Ln and I-580 in Castro Valley, CA 94546.
Is Extra Space Storage near any colleges?
Yes, it is about 4 miles from California State University East Bay, which is convenient for students needing storage during breaks or study abroad.
What nearby establishments can I visit close to Extra Space Storage?
Close to Extra Space Storage, you can visit The Burrito Shop for Mexican food, Rite Aid for pharmacy needs, and Castro Valley Creek Park for outdoor activities.
How can nearby automotive services help customers of Extra Space Storage?
Customers can conveniently access automotive services nearby such as Boulevard Auto or SpeeDee Oil Change & Auto Service for vehicle repairs or maintenance while using Extra Space Storage.
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