4.9
    Call our Storage Experts
    Storage Experts Available
    Mon-Fri: 03:00am-10:00pm
    Sat: 03:00am-10:00pm
    Sun: 03:00am-10:00pm
  • New Customer: 
  • Current Customer: (619) 207-8261

Today's Hours

VIEW ALL
Rental & Support:6:00 AM - 8:00 PM
Access:6:00 AM - 8:00 PM
Office:9:00 AM - 5:30 PM
VIEW ALL HOURS
Nearby Locations
$48
$20
$25
Location marker pin
4.9

National City Self Storage at 525 W 20th St

Call our Storage Experts
Storage Experts Available
Mon-Fri: 03:00am-10:00pm
Sat: 03:00am-10:00pm
Sun: 03:00am-10:00pm

Today's Hours

VIEW ALL
Rental & Support:6:00 AM - 8:00 PM
Access:6:00 AM - 8:00 PM
Office:9:00 AM - 5:30 PM
VIEW ALL HOURS

Select a Unit Below

One-Time Admin Charge
$19.99
You will be charged a one-time lock charge. Your lock fee may be refundable if you bring your own lock and it is approved for compatibility by your Store Manager. This fee does not apply to digital-access units.
$29
This one-time admin charge covers lease processing and your account setup.

Units Available Nearby

3' x 3'

Available now at 3085 Del Sol Blvd, San Diego, CA 92154 starting at $20/mo

Available Nearby

5' x 10'

Available now at 3808 Cedar St, San Diego, CA 92105 starting at $48/mo

Available Nearby

5' x 20'

Available now at 3808 Cedar St, San Diego, CA 92105 starting at $117/mo

Available Nearby

10' x 10'

Available now at 3085 Del Sol Blvd, San Diego, CA 92154 starting at $152/mo

Available Nearby

8' x 20'

Available now at 1560 Frazee Rd, San Diego, CA 92108 starting at $307/mo

Available Nearby

10' x 20'

Available now at 3808 Cedar St, San Diego, CA 92105 starting at $257/mo

Available Nearby

Nearby Locations
$48
$20
$25
Location marker pin

Other Storage Available

Conveniently Located Near You

Located on W 20th St just off W 18th St and I-5, Extra Space Storage serves residents of National City and Lincoln Acres. Locals will recognize our facility west of St. Anthony's Catholic Church and Kimball Elementary School.

Secure Storage Near Naval Base San Diego

Extra Space Storage is about 2.1 miles from Naval Base San Diego. We're a great solution for active military, military families, and base personnel who need affordable military storage in National City!

A Versatile Self Storage Solution

Extra Space Storage on W 20th St offers a wide selection of storage units and storage lockers, drive-up access, and exceptional security. We're the storage solution you can count on in National City!

Storage Units to Fit Your Needs

With everything from 3x5 reduced height storage lockers to 17x25 indoor drive-up units, our National City storage facility has the space you're looking for! Storage units also include indoor access, elevator access, and other features.

Secure Storage

Our W 20th St storage facility is equipped with advanced security features like video surveillance, electronic gate access, an on-site resident manager, and security access to your floor only. We care about the valued belongings of our customers.

Drive-Up Access

For your convenience, we have storage units with drive-up access. This amenity allows you to pull a vehicle up next to your unit to drop off and pick up items quickly! Drive-up units come in sizes 4x4 to 17x25.

Other Amenities & Services

  • Sturdy moving carts for heavy, bulky items

  • Multiple entrance gates

  • Elevators for easy access to upper levels

  • Accommodates trucks larger than 20ft

  • Se Habla Espanol

  • Convenient freeway access

  • Deliveries accepted

  • On-site office

  • ADA compliant

  • Military discount

Cheap Self Storage in National City

If you need an affordable self storage solution in National City, Extra Space Storage on W 20th St has what you’re looking for! We offer cheap storage units with prices as low as $72 at this location. At select locations, you can also take advantage of great move-in deals like first month free and first month half-off when you reserve storage with us online!

Experience the Extra Space Difference

Extra Space Storage provides dependable self storage with great service. Our friendly, professional staff maintains a clean, secure facility at all times, and they're more than happy to help however they can! Contact us today to reserve a storage unit in National City!

Company

Employees: 1-10

Payment Options: MasterCard / VISA / American Express / Discover / Check / Cash / Invoice

Established Date: 1977

Site Number: 8321

Phone Number:(619) 477-1535

What to Expect from Extra Space Storage on W 20th St

Hours

Rental & Support

  • Monday: 6:00 AM - 8:00 PM
  • Tuesday: 6:00 AM - 8:00 PM
  • Wednesday: 6:00 AM - 8:00 PM
  • Thursday: 6:00 AM - 8:00 PM
  • Friday: 6:00 AM - 8:00 PM
  • Saturday: 6:00 AM - 8:00 PM
  • Sunday: 6:00 AM - 8:00 PM

Access

  • Monday:6:00 AM - 8:00 PM
  • Tuesday:6:00 AM - 8:00 PM
  • Wednesday:6:00 AM - 8:00 PM
  • Thursday:6:00 AM - 8:00 PM
  • Friday:6:00 AM - 8:00 PM
  • Saturday:6:00 AM - 8:00 PM
  • Sunday:6:00 AM - 8:00 PM

Office

  • Monday:9:30 AM - 6:00 PM
  • Tuesday:9:30 AM - 6:00 PM
  • Wednesday:9:30 AM - 6:00 PM
  • Thursday:9:30 AM - 6:00 PM
  • Friday:9:30 AM - 6:00 PM
  • Saturday:9:00 AM - 5:30 PM
  • Sunday:Closed

Directions

Intersections/Landmarks

W 18th St and I-5

Directions from the North

Drive south on I-5 S. Take Exit 11A. Turn left onto Cleveland Ave. Turn left onto W 19th St. Turn right onto Wilson Ave. Turn right onto W 20th St. Our facility will be straight ahead.

Directions from the South

Drive north on I-5 N. Take Exit 10. Turn right onto Mile of Cars Way. Turn left onto Wilson Ave. Turn left onto W 20th St. Our facility will be straight ahead.

Directions from the East

Drive west on CA-54 W. Take Exit 1B. Merge onto I-5 N. Take Exit 10. Turn right onto Mile of Cars Way. Turn left onto Wilson Ave. Turn left onto W 20th St. Our facility will be straight ahead.

Directions from the West

Drive southeast on CA-75 S. Merge onto I-5 N. Take Exit 10. Turn right onto Mile of Cars Way. Turn left onto Wilson Ave. Turn left onto W 20th St. Our facility will be straight ahead.

Frequently Asked Questions at 525 W 20th St

Does 525 W 20th St offer short term self storage options?

Storage units at Extra Space Storage at 525 W 20th St can be rented for both short-term and long-term storage needs! The leases our customers sign are month by month, so you have the flexibility to use self storage for as long as you need it.

Are there restrictions on what I can put in a storage unit at 525 W 20th St?

Extra Space Storage does have a few restrictions on what can be stored at any of our National City storage facilities. The items that cannot be stored at Extra Space Storage include but are not limited to food, drugs, anything flammable or combustible, vehicles not in working order, and more. If you're not sure about an item, please contact our team at 525 W 20th St!

Do I need insurance to rent a storage unit at 525 W 20th St?

When renting a storage unit at 525 W 20th St from Extra Space Storage, customers are required to have proof of insurance. For most customers, your storage unit is often covered by your homeowners insurance or renters insurance, but you can purchase self storage insurance from Extra Space Storage. The benefit of purchasing self storage insurance through Extra Space Storage in National City is that our options may provide more coverage for your items and possibly help you avoid increases in your premiums over time.

How secure are storage units at 525 W 20th St?

Our National City storage facilities are backed by advanced security features, such as video surveillance, security access to your floor only, individually-alarmed storage units, and electronic gate access!

What size padlock should I use for storage unit at 525 W 20th St?

Storage units at our 525 W 20th St storage facility have no set lock size required. If you're not sure the lock you have is secure enough, Extra Space Storage sells secure disc locks along with other helpful moving supplies!

*Promotional Terms & Conditions and Size Disclaimer

Reviews

January 22, 2026

Eduardo

Posted On Google

overall rating

????? I had a great experience at Extra Space Storage thanks to Jacob. He was friendly, professional, and incredibly helpful from start to finish. Jacob took the time to explain all my options, answered every question clearly, and made the whole process quick and stress-free. Excellent customer service—highly recommend asking for Jacob if you need storage!

Response from Extra Space Storage (1/22/2026)

We're thrilled to hear about your positive experience with Jacob at Extra Space Storage. Thank you for sharing your feedback! It's wonderful to know that Jacob provided you with such friendly and professional service throughout your entire experience. We're particularly pleased to hear that he took the time to thoroughly explain all your storage options and answered every question you had clearly. Making the process quick and stress-free for our customers is exactly what we strive for, and Jacob clearly exemplified this commitment. Your recommendation means a great deal to us, and we're grateful that you took the time to highlight Jacob's excellent customer service. Thank you again for choosing Extra Space Storage!

January 20, 2026

Dustin

Posted On Google

overall rating

Very helping

Response from Extra Space Storage (1/20/2026)

We greatly appreciate your feedback! Happy our team could help with your storage needs.

January 6, 2026

Ed

Posted On Google

overall rating

Based on the my experience with my storage unit, I don’t recommend this company.

Response from Extra Space Storage (1/6/2026)

We are disappointed to hear about your experience. Please contact us at (619) 477-1535 to discuss your concerns.

January 3, 2026

Javier

Posted On Google

overall rating

All storage it's so really expensive ??

Response from Extra Space Storage (1/3/2026)

We are sorry to hear about your concern with pricing. We understand storage costs matter. Please contact us at (619) 477-1535 to discuss options.

December 30, 2025

Dustin

Posted On Google

overall rating

Midian helped me out immensely on sign up. About a year in, they cut off my lock, made me come down as soon as I could to buy a new one and put it on. The unit next to mine didn't pay. Woops cut the wrong number

Response from Extra Space Storage (12/31/2025)

We are concerned to hear about your experience. Please contact us at (619) 477-1535 to discuss this further.