In National City, CA
Extra Space Storage - 8321 - National City - 20th St
525 West 20th Street, National City, CA, 91950
From live sheet
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Compare storage units, sizes, and move-in prices from facilities in National City and nearby communities.
Showing 15 of 76 facilities. Prices and availability can change, so confirm details before reserving.
525 West 20th Street, National City, CA, 91950
471 C St, Chula Vista, CA, 91910
325 Trousdale Drive, Chula Vista, CA, 91910
4455 Federal Blvd, San Diego, CA, 92102
3808 Cedar Street, San Diego, CA, 92105
560 16th Street, San Diego, CA, 92101
4104 Home Avenue, San Diego, CA, 92105
1925 54th Street, San Diego, CA, 92105
5950 Federal Boulevard, San Diego, CA, 92114
2317 Main Street, Chula Vista, CA, 91911
2385 Main Street, Chula Vista, CA, 91911
2776 Main Street, Chula Vista, CA, 91911
3089 Main Street, Chula Vista, CA, 91911
1714 Palm Ave, San Diego, CA, 92154
845 Hollister Street, San Diego, CA, 92154
Compare unit sizes and current prices from storage facilities serving National City.
Review the unit size, monthly price, and availability before you reserve.
National City sits in the San Diego South Bay next to the waterfront, and storage demand here comes from several directions at once. Navy households move on orders and deploy at short notice. Homes and apartments are compact and often shared across generations. Trades and small businesses need somewhere secure for tools and stock. Use the listings above to compare live unit sizes, move-in prices and availability across National City and the surrounding South Bay, then use the guidance below to size your unit and decide how much coastal conditions should influence your choice.
San Diego County pricing runs above the national average, though the South Bay generally offers better value than the coastal north county and central San Diego. Live move-in prices on the listings above start from $26. A 5x5 locker covers boxes and seasonal items. A 5x10 handles a studio or a single bedroom. A 10x10 takes a one bedroom apartment. A 10x15 covers a two or three bedroom home. A 10x20 fits a larger household or a vehicle. Upper floor units reached by elevator generally cost less than ground floor drive-up space. Demand peaks over the summer with both the moving season and military transfer timing, so a fall or winter booking usually secures a lower standing rate.
Size carefully, because the step between unit sizes adds up across a year in this market. A 5x5 holds around ten to fifteen boxes plus bags, roughly a large closet. A 5x10 takes a mattress set, a dresser, a desk and around twenty boxes. A 10x10 fits a one bedroom apartment including a sofa and dining set. A 10x15 handles a two or three bedroom home if you disassemble beds and tables. A 10x20 covers a larger household or a car. If you are storing through a deployment, choose a size that leaves a clear walkway, label boxes by room and keep a written inventory a family member can work from. Shelving along one wall makes a smaller unit go much further.
The South Bay climate is mild, so temperature is less of a concern here than moisture and salt. Proximity to the bay means salt in the air, which corrodes metal fittings, hardware, tools and electronics over time, and coastal damp encourages mildew in fabric, cardboard, upholstery and clothing. Climate controlled units hold a steadier humidity range and are the right choice for furniture, mattresses, electronics, documents, photographs, uniforms, clothing, instruments and artwork. Standard units cost less and suit tools in sealed containers, plastic totes, garden gear and sports equipment. Use sealed containers rather than cardboard for long term storage, keep everything raised off the concrete floor and leave space between contents and walls.
Facilities serving National City are spread across the South Bay. Check what is available around Highland Avenue, Plaza Boulevard and the I-5 and SR-54 corridors, and toward Chula Vista, Bonita, Imperial Beach and the southern San Diego neighborhoods. Rates vary noticeably across short distances, so comparing three or four sites within a few miles is worth the time. If you are stationed locally, look at facilities on your usual route to base rather than the closest on a map. If you are storing long term and will visit rarely, take the lowest standing monthly rate within a reasonable drive, since the difference compounds over a year.
Ask whether the facility offers military terms, short term rentals or flexible notice for orders, since many in this market do. Confirm what happens if orders change at short notice. Ask about loading access and parking, and confirm elevator dimensions and cart availability if your unit is upstairs. Ask whether the price shown is promotional, what the ongoing figure becomes and how often rates are reviewed. Check the insurance requirement against your renters policy first. Ask how humidity is managed if you are storing electronics, uniforms or documents. Confirm gate hours and the move-out notice period, commonly ten to fourteen days.
Live move-in prices on this page start from $26. The South Bay generally offers better value than central and north county San Diego, and upper floor units usually cost less than ground floor drive-up space.
Yes. Facilities across National City and Chula Vista serve local base traffic and most rent month to month, which suits deployment and transfer timing. Ask about flexible notice and short term rentals when you book.
For clothing, uniforms, furniture, electronics, documents and anything with metal fittings, yes. Salt air and coastal damp cause corrosion and mildew. Tools in sealed containers and totes are fine in a standard unit.
A 10x15 fits most two or three bedroom homes including beds, a sofa, a dining set, appliances and around forty boxes. A 10x10 works for a one bedroom apartment or a single floor of furniture.
Choose a size that leaves a clear walkway, label boxes by room on two sides and keep a written inventory a family member can work from. Climate control protects uniforms, electronics and documents while you are away.
Most National City facilities rent month to month with no long term contract. Confirm the move-out notice period when you sign and ask what happens if orders change at short notice.