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Extra Space Storage - 3703 - San Marcos - Mission Rd

999 East Mission Road, San Marcos, CA 92069
Rating Badge
4.0
(10)
Rating Badge
4.8
(347)
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Online Move-In AvailableRent online, skip the counter, and go straight to your space

Available Storage Units (21)

5x5

$3.60 / sqft
mini storage unit
Features
1st FloorInterior
$90.00
$95.00
Reserve Now, Pay LaterYou will not be charged until move-in

5x10

$1.40 / sqft
small storage unit
Features
Upstairs via ElevatorInterior
$70.00
$78.00
Reserve Now, Pay LaterYou will not be charged until move-in

5x10

$1.80 / sqft
small storage unit
Features
Upstairs via LiftInterior
$90.00
$94.00
Reserve Now, Pay LaterYou will not be charged until move-in

10x5

$2.64 / sqft
small storage unit
Features
1st FloorInterior
$132.00
$139.00
Reserve Now, Pay LaterYou will not be charged until move-in

5x10

$2.64 / sqft
small storage unit
Features
1st FloorInterior
$132.00
$139.00
Reserve Now, Pay LaterYou will not be charged until move-in

15x5

$2.03 / sqft
small storage unit
Features
1st FloorInterior
$152.00
$159.00
Reserve Now, Pay LaterYou will not be charged until move-in

5x15

$2.03 / sqft
small storage unit
Features
1st FloorInterior
$152.00
$159.00
Reserve Now, Pay LaterYou will not be charged until move-in

10x10

$1.78 / sqft
medium storage unit
Features
Upstairs via LiftInterior
$178.00
$187.00
Reserve Now, Pay LaterYou will not be charged until move-in

10x10

$1.82 / sqft
medium storage unit
Features
1st FloorInterior
$182.00
$191.00
Reserve Now, Pay LaterYou will not be charged until move-in

10x10

$1.82 / sqft
medium storage unit
Features
Drive Up AccessOutdoor Access
$182.00
$191.00
Reserve Now, Pay LaterYou will not be charged until move-in

15x10

$1.39 / sqft
medium storage unit
Features
Drive Up AccessOutdoor Access
$208.00
$218.00
Reserve Now, Pay LaterYou will not be charged until move-in

10x15

$1.39 / sqft
medium storage unit
Features
Drive Up AccessOutdoor Access
$208.00
$218.00
Reserve Now, Pay LaterYou will not be charged until move-in

10x20

$1.57 / sqft
medium storage unit
Features
Drive Up AccessOutdoor Access
$314.00
$329.00
Reserve Now, Pay LaterYou will not be charged until move-in

15x15

$1.49 / sqft
large storage unit
Features
Drive Up AccessOutdoor Access
$336.00
$349.00
Reserve Now, Pay LaterYou will not be charged until move-in

10x25

$1.42 / sqft
large storage unit
Features
Drive Up AccessOutdoor Access
$356.00
$368.00
Reserve Now, Pay LaterYou will not be charged until move-in

10x30

$1.31 / sqft
large storage unit
Features
Drive Up AccessOutdoor Access
$393.00
$403.00
Reserve Now, Pay LaterYou will not be charged until move-in

15x20

$1.31 / sqft
large storage unit
Features
Drive Up AccessOutdoor Access
$393.00
$403.00
Reserve Now, Pay LaterYou will not be charged until move-in

20x20

$1.20 / sqft
large storage unit
Features
Drive Up AccessOutdoor Access
$480.00
$486.00
Reserve Now, Pay LaterYou will not be charged until move-in

35x20

$1.09 / sqft
large storage unit
Features
Drive Up AccessOutdoor Access
$763.00
Reserve Now, Pay LaterYou will not be charged until move-in

10x20

$1.16 / sqft
Vehicle unit
Features
Drive Up AccessVehicleOutdoor-uncovered
$231.00
$242.00
Reserve Now, Pay LaterYou will not be charged until move-in

10x25

$1.05 / sqft
Vehicle unit
Features
Drive Up AccessVehicleOutdoor-uncovered
$262.00
$275.00
Reserve Now, Pay LaterYou will not be charged until move-in

Complete Amenities & Features

ACCESS

  • Electronic gate accessElectronic gate access
  • Is your facility parking lot or driveway large enough for an 18-wheel truck?Is your facility parking lot or driveway large enough for an 18-wheel truck?

SECURITY

  • Video cameras onsiteVideo cameras onsite
  • On site office at facilityOn site office at facility
  • Resident ManagerResident Manager

OFFICE HOURS
SundayClosed
Monday9:30 AM – 6:00 PM
Tuesday9:30 AM – 6:00 PM
Wednesday9:30 AM – 6:00 PM
Thursday9:30 AM – 6:00 PM
Friday9:30 AM – 6:00 PM
Saturday9:00 AM – 5:30 PM
ACCESS HOURS
Sunday6:00 AM – 10:00 PM
Monday6:00 AM – 10:00 PM
Tuesday6:00 AM – 10:00 PM
Wednesday6:00 AM – 10:00 PM
Thursday6:00 AM – 10:00 PM
Friday6:00 AM – 10:00 PM
Saturday6:00 AM – 10:00 PM

VEHICLE STORAGE REQUIREMENTS

  • Requires titleRequires title
  • Requires registrationRequires registration
  • Requires insuranceRequires insurance
  • Must be drivableMust be drivable

PROPERTY COVERAGE

  • Insurance requiredInsurance required
  • Insurance available for purchaseInsurance available for purchase
  • Protection plan requiredProtection plan required
  • Protection Plan available for purchaseProtection Plan available for purchase

PAYMENTS

  • CashCash
  • Credit cards acceptedCredit cards accepted
  • CheckCheck

BILLING

  • Automatic payments availableAutomatic payments available

MISCELLANEOUS

  • Moving supplies for saleMoving supplies for sale
  • Paperwork can be done remotelyPaperwork can be done remotely

Customer Reviews

4.0(10)
Verified (10)Google (347)

Can't Beat Them!

by Denise

November 23, 2024

5.0

The staff are accommodating and friendly! The facility is clean and quiet. They have the best prices around.They make the entire process easy!

Move in day

by Kathleen Cannon

July 21, 2023

5.0

My interaction with the staff in San Marcos was pleasant and very helpful. I think Iテ「竄ャ邃「m going to be very happy using this facility

Speedy Gonzales

by Heidi Johnson

April 29, 2023

5.0

I am very pleased with how quick I was in my unit. Made reservation online to move in next day. And next day I was in a big hurry to pick up u haul truck and what I thought was going to take forever. Only took 7 min.

Great management

by Nic

January 31, 2022

5.0

Sweet owner. Does everything in her power to accommodate and make issues disappear.

Sold my condo. Needed to store my belongings.

by Andy Pino

October 18, 2024

4.5

Was happy to find a large enough unit which helped with storage and was available immediately.

Ines Reyes's profileInes Reyes
May 24, 2026

I went in today to switch my storage unit to a smaller one and Frances the store manager there was so helpful and kind. She was able to help me find a storage unit at my price point. Overall, I am happy with my service. And feel confident that my things are safe there.

Anthony Campos's profileAnthony Campos
February 2, 2026

It's a great place to store your stuff. Good prices clean. There's a restroom here you can use open at a good time. The only thing is is that if you do rent to here make sure you get extra locks cuz it seems like every so often the lock that I put on the storage unit gets damaged or something to where it doesn't work properly I've had this one for about a year and I've got to change the lock twice. Other than that great spot.

Brandi Bird's profileBrandi Bird
December 6, 2025

I've had a small storage unit here for about a year and four months. My initial fee was $45/month. Within the first few months it doubled. In less than a year and a half- it went up to a little over $120/month. Seems a bit steep for a 5x5 storage unit. An advisory for anyone to be mindful of their advertised low rates.

Thomas Mojado's profileThomas Mojado
December 29, 2025

Move in was quick and easy. Account setup was fast and simple. Only been a week but I’m happy with my choice and the service. I hope the team is having a great holiday season.

Amy Cook's profileAmy Cook
August 31, 2025

Extra Space Storage has exceeded my expectations in customer service! I had a poor experience with a previous storage place. Out of bitterness checked to see if there was something more affordable with safety and cleanliness in mind. We found it!! This place is worth the move!! Centrally located in San Marcos and recently under new ownership we called the 877 number on line got Anthony. He was a fast talker (my favorite) and explained everything. However there were a few things I had questions about that were specific to the location. Anthony gave me the direct number to the San Marcos storage manager on site. Francis, the on site Manager answered on the first ring! She is beyond knowledgeable with the ability to get us in with full transparency. Done and done! In a world going digital it's crazy to think that my experience with the customer care at Extra Space Storage has made my day.. :) Moving from my previous place this is saving me about 250$ a month for the same size unit with a 4 month pre pay start up. Thank you!

How to Rent a Storage Unit With Storage.com

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1You can complete your rental process online today and go straight to your unit when you plan to move in.
2You can make a reservation today with no payment until you sign your lease at your move-in date.
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