Extra Space Storage at 525 W 20th St

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

Rental & Support:6:00 AM - 10:00 PM
Access:6:00 AM - 10:00 PM
Office:9:30 AM - 6:00 PM
4.9

Extra Space 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

Rental & Support:6:00 AM - 10:00 PM
Access:6:00 AM - 10:00 PM
Office:9:30 AM - 6:00 PM

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.
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Locker
4' x 3'
  • 1st Floor Access
  • Indoor
  • Reduced Height
IN STORE
$75
WEB RATE
$43
Small
5' x 8'
  • Indoor
  • Stair Access
IN STORE
$130
WEB RATE
$80

ACT FAST: 1 LEFT!

Small
5' x 9'
  • Indoor
  • Lift Access
IN STORE
$143
WEB RATE
$88

ACT FAST: 1 LEFT!

Small
6' x 8'
  • Indoor
  • Lift Access
IN STORE
$149
WEB RATE
$92
Small
6' x 8'
  • Indoor Drive-Up Access
IN STORE
$279
WEB RATE
$199

ACT FAST: 1 LEFT!

Small
6' x 9'
  • Indoor
  • Lift Access
IN STORE
$161
WEB RATE
$99
Small
8' x 9'
  • Indoor
  • Lift Access
IN STORE
$195
WEB RATE
$119

LIMITED UNITS

Medium
9' x 9'
  • Indoor
  • Lift Access
IN STORE
$228
WEB RATE
$159

LIMITED UNITS

Medium
5' x 17'
  • Indoor Drive-Up Access
IN STORE
$279
WEB RATE
$199

ACT FAST: 1 LEFT!

Medium
8' x 11'
  • Indoor
  • Lift Access
IN STORE
$238
WEB RATE
$166

ACT FAST: 1 LEFT!

Medium
8' x 12'
  • Indoor
  • Lift Access
IN STORE
$253
WEB RATE
$176

LIMITED UNITS

Medium
10' x 17'
  • Indoor Drive-Up Access
IN STORE
$427
WEB RATE
$310

ACT FAST: 1 LEFT!

Units Available Nearby

5' x 7'

Available now at 3808 Cedar St, San Diego, CA 92105 starting at $62/mo

Available Nearby

5' x 10'

Available now at 3085 Del Sol Blvd, San Diego, CA 92154 starting at $137/mo

Available Nearby

10' x 10'

Available now at 3808 Cedar St, San Diego, CA 92105 starting at $129/mo

Available Nearby

10' x 20'

Available now at 3808 Cedar St, San Diego, CA 92105 starting at $315/mo

Available Nearby

15' x 40'

Available now at 3085 Del Sol Blvd, San Diego, CA 92154 starting at $382/mo

Available Nearby

Nearby Locations

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 affordablemilitary 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 havestorage 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

  • 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 $80 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 - 10:00 PM
  • Tuesday: 6:00 AM - 10:00 PM
  • Wednesday: 6:00 AM - 10:00 PM
  • Thursday: 6:00 AM - 10:00 PM
  • Friday: 6:00 AM - 10:00 PM
  • Saturday: 6:00 AM - 10:00 PM
  • Sunday: 6:00 AM - 10:00 PM

Access

  • Monday:6:00 AM - 10:00 PM
  • Tuesday:6:00 AM - 10:00 PM
  • Wednesday:6:00 AM - 10:00 PM
  • Thursday:6:00 AM - 10:00 PM
  • Friday:6:00 AM - 10:00 PM
  • Saturday:6:00 AM - 10:00 PM
  • Sunday:6:00 AM - 10:00 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

4.9 stars

871 Reviews
5 stars826
4 stars17
3 stars5
2 stars6
1 star17
Showing 3 of 871

Ranessa

October 10, 2026

I think it’s ridiculous that Extra Space Storage nearly doubles your rate after the first three months. These promotional rates are misleading when you end up paying significantly more just a few months later. On top of the pricing issue, I also had a problem with a skunk in my storage unit when I first rented the space. The facility provided no assistance or solution, leaving me to deal with the situation myself. That was a terrible first impression and made me question the level of customer service they provide. It’s frustrating because I was simply looking for a place to store my belongings, set up autopay, pay my bill on time, and go about my life without constantly worrying about price increases or having to deal with issues on my own. It feels like customers who are reliable, pay on time, and barely require anything from the facility are not valued. I ended up going to Stor-Um on Pacific Highway, where they offered me a larger storage unit at the same rate for an entire year, with no increase during that period. That is how you earn a customer’s business and build loyalty. I would much rather support a company that values its customers, provides decent service, and offers honest, predictable pricing instead of attracting people with a low introductory rate and then nearly doubling the cost after just three months. My advice is to shop around and compare rates before signing up. I found a better option elsewhere, with more space and predictable pricing. Based on my experience, I cannot recommend Extra Space Storage.

We are sorry to hear about your frustrating experience regarding rate changes and the lack of support you encountered with your unit, Ranessa. Providing reliable service and clear communication is important to us, and we regret that your time with us did not meet expectations. Please reach out to us at 888-STORAGE so our team can look into your experience directly.

Extra Space Storage (10/11/2026)

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Angelina

September 26, 2026

Jacob did an amazing job helping us today.He made the whole process of getting our storage unit so much easier and was very helpful throughout. We really appreciate his excellent customer service and would definitely recommend him.

Thank you for sharing your experience and recommending Extra Space Storage Angelina. We're glad to hear Jacob made the rental process smooth and provided helpful service, and we will be sure to share your kind words with him and the team.

Extra Space Storage (9/28/2026)

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Jose

September 23, 2026

Representative was very helpful

Thank you for sharing your experience Jose. We are glad to hear that our team representative was helpful and provided you with great support at Extra Space Storage.

Extra Space Storage (9/23/2026)

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*savings reflected in rates.