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Extra Space Storage - 999 East Mission Road, San Marcos, CA 92069

Self Storage, Car Storage, RV Storage 25 - 700 Sq. Ft.
4.8/5 - 345 Reviews
Location:
999 East Mission Road, San Marcos, CA 92069
All units
Small
Medium
Large
Parking
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Units Availability
Small Storage Unit
15x5
Self Storage
75 Sq. Ft.
$158/mo
Small Storage Unit
10x5
Self Storage
50 Sq. Ft.
$120 - $138/mo
Small Storage Unit
5x15
Self Storage
75 Sq. Ft.
$158/mo
Small Storage Unit
5x10
Self Storage
50 Sq. Ft.
$120 - $138/mo
Small Storage Unit
5x5
Self Storage
25 Sq. Ft.
$94/mo
Medium Storage Unit
20x5
Self Storage
100 Sq. Ft.
$223/mo
Medium Storage Unit
15x10
Self Storage
150 Sq. Ft.
$277 - $283/mo
Medium Storage Unit
14x14
Self Storage
196 Sq. Ft.
$284/mo
Medium Storage Unit
10x15
Self Storage
150 Sq. Ft.
$277 - $283/mo
Medium Storage Unit
10x10
Self Storage
100 Sq. Ft.
$223 - $225/mo
Medium Storage Unit
5x25
Self Storage
125 Sq. Ft.
$250/mo
Large Storage Unit
35x20
Self Storage
700 Sq. Ft.
$862/mo
Large Storage Unit
30x20
Self Storage
600 Sq. Ft.
$760/mo
Large Storage Unit
25x20
Self Storage
500 Sq. Ft.
$647/mo
Large Storage Unit
20x30
Self Storage
600 Sq. Ft.
$760/mo
Large Storage Unit
20x20
Self Storage
400 Sq. Ft.
$464 - $560/mo
Large Storage Unit
15x20
Parking
300 Sq. Ft.
Drive-up Access
Parking
RV Storage
$458/mo
Large Storage Unit
15x15
Self Storage
225 Sq. Ft.
$391/mo
Large Storage Unit
10x30
Parking
300 Sq. Ft.
Drive-up Access
Parking
RV Storage
$458/mo
Large Storage Unit
10x25
Parking
250 Sq. Ft.
Parking
RV Storage
$320 - $415/mo
Large Storage Unit
10x20
Parking
200 Sq. Ft.
Car Storage
Parking
$282 - $366/mo

Amenities

  • Indoor
  • Drive-Up Access
  • Retail Available
  • Onsite Manager
  • Contactless Renting
  • Security Camera
  • Gate
  • Parking
  • Credit Cards Accepted
  • Multi-Level Storage
  • Online Payment
  • RV Storage

What customers are saying

4.8/5 - 345 Reviews

Read some helpful reviews of Extra Space Storage at 999 East Mission Road, shared by real renters with genuine experiences and honest opinions.

This is not a safe property. They had a break-in on August 25, 2025 from 4AM-6AM. I bought this unit in May 2025. There was a worker who lived on premises and told me someone else would be moving in after. This led my husband and I to believe this property was secure. No one has lived on site since the former worker moved at the end of May. She also told us there was security, but failed to inform me that security stops working at 6PM. This means there was no security or anyone watching the cameras overnight. If we had been told truthful information, we would not have stored anything at Extra Space Storage. We were misled and it led to our unit being robbed, along with 4-5 other units. I would like to update to state that Ana (district manager) will refund the 3 unfortunate months we stayed at Extra Space. While on the phone with Helena, a team leader, I mentioned how I fault their staff Sammy, who misled us upon enrolling, Ana, and anyone who works for Extra Space (including Helena). She responds with, “I just got this. Thank you. Thank you for throwing me in there. “ in a very sarcastic tone. I reminded her that while she is being paid, I was robbed due to their lack of security. Don’t accept the term “lead,” if you can’t do so without speaking professionally. Another update: I spoke to the Detective on this case on 9/3. The detective from San Marcos Sheriff’s Department says this location has been targeted MULTIPLE TIMES this year. Helena claims they don’t have any reports of this from Sammy. Save your time, money, and stress. Avoid this place. ... Read more
Bianca C. - 3 September 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! ... Read more
Amy C. - 31 August 2025
I spoke with an excellent customer service member by the name of Anthony who was more than willing to assist me in setting up my new storage unit. He was kind, friendly and very helpful in my quest to reserve a storage unit here. I had some extra questions regarding my own personal situation and he referred me to the site manager, Francis. Francis took almost an hour of her time listening and working out our issues that had resulted from the prior owners. I cannot stress enough how much of a breath of fresh air it is to speak to someone so empathetic, human and caring. Her one on one customer service experience set a bar that I am unsure anyone else can meet. Shout out to the manager Francis at Extra Space Storage for being transparent throughout the whole process and taking such good care of us as customers. I would suggest this business to anyone looking for a storage unit in north county, specifically San Marcos. ... Read more
Drew P. - 31 August 2025
Do not go here! As soon as you get everything moved in they will raise the prices. Stay away!!! My unit went up a $100 a month after I was moved in . Now it is taking forever to go through it and get rid of everything I own. ... Read more
Vickie S. - 22 August 2025
Many thanks to Extra Space Storage for the excellent service and taking care of my family's needs since we moved to Cali. Really appreciate Italo's sincere and professional customer service. You're in good hands here!!! ... Read more
Leo - 25 July 2025
Italo is very PROFFESSIONAL and courteous and went above and beyond to ensure I left with the best possible outcome for my situation, and he did all that in a timely manner. He is proficient and efficient and will definitely be sending my family to see him. Thank you! ... Read more
Miguel G. - 17 July 2025
Anthony C. - 10 April 2025
TO : EXTRA SPACE STORAGE I would like to take a moment to extend my heartfelt gratitude for the outstanding service you’ve provided over the past 30 years. Your dedication, reliability, and professionalism have been truly exceptional, and I deeply appreciate the peace of mind knowing my belongings have been in good hands all these years. Sincerely Richard ... Read more
Richard - 8 April 2025
olivia b. - 29 March 2025
Honestly, the customer service has been AMAZING! We booked for a date way before we needed it because we wanted to benefit from an offer they had. But they honored the discounted price when we asked to push the start date. They kept calling to check if we need anything and we asked to modify the date twice and they happily did so. We also just got the unit, everything looks clean and easily accessible. ... Read more
Nabiha M. - 21 January 2025
Mike at the office was amazing!! We came in 15 minutes before close after calling to let him know we were on the way and he was more than happy to help make sure we were able to get moved into our unit. He also happily answered all of our questions. Our unit was clean and easy to access, while also feeling very secure. ... Read more
Saliah R. - 30 September 2024
So far this place has been one of the few that actually has units available at the very last minute and found a unit with first months rent free thankfully. The guy on the phone was very helpful. In the office, Sammy could not of had better customer service and was super quick! So far so good! ... Read more
Guess W. - 16 September 2023

Overview

Located at 999 East Mission Road in San Marcos, CA, this Extra Space Storage facility offers a range of unit sizes, including small, medium, and large options, making it convenient for various storage needs, whether you're decluttering, downsizing, or moving.

This facility is equipped with drive-up access units for effortless loading and unloading, as well as indoor and multi-level storage options to fit a variety of preferences. With secure parking and dedicated RV storage, it’s an excellent choice for vehicle owners, especially those in San Marcos, where outdoor storage space can be limited. The property is monitored by security cameras and has an onsite manager, providing added peace of mind. Moving supplies are available on-site, and the facility supports contactless renting and online payment, making the rental process simple and flexible.

With its modern amenities and secure design, this Extra Space Storage facility is ideal for residents or businesses in San Marcos seeking reliable, accessible, and safe self-storage solutions.

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Storage units in nearby cities

Want to see how San Marcos, CA, compares to other places? There are plenty of great options nearby. Carlsbad, CA, 7 miles away, has 5 self storage facilities with rents starting from $51/month. Or you could drive to Escondido, CA, just 8 miles distant to find other options, where the cheapest units in the 12 facilities there can be rented for $46/month. In Encinitas, CA, just 8 miles away, there are 5 facilities available, offering rents as low as $48/month. Further out, Oceanside, CA (13 miles away), and Fallbrook, CA (17 miles away), have 13 and 3 facilities, with minimum rents of $50 and $58, respectively.

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Still looking for the ideal storage unit? For more great self storage options you wouldn't have to cross the state border: units can be leased in Los Angeles, CA and San Diego, CA, starting from $15 and $15, respectively. Even more storage is available and with low starting rents, in San Jose, CA ($11), San Francisco, CA ($29) and Fresno, CA ($30).

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Frequently Asked Questions

There is a wide array of amenities available for the storage units that Extra Space Storage - 999 East Mission Road has to offer. These amenities include Indoor, Drive-Up Access, Retail Available, Onsite Manager, Contactless Renting, Security Camera, Gate, Parking, Credit Cards Accepted, Multi-Level Storage, Online Payment and RV Storage. Most of these amenities can prove to be very useful depending on what you need to store. For example, climate-controlled units can come in handy for keeping sensitive items, drive-up access can make your loading and unloading process easier, and extra security measures will ensure your items are kept safe at all times.

The storage units offered by Extra Space Storage - 999 East Mission Road can satisfy all of your storage needs. Different sizes here range from 25 to 700 square feet. You can go for smaller units if you don't have a lot of items to store, while choosing a larger space is recommended in case you need to store a lot of furniture, bigger items or even vehicles.

The unit size that you should choose obviously depends on how much stuff you need to store. On the one hand, you should think of smaller units (5'x5' or 5'x10') as closets – they can be used to store chairs, lamps, moving boxes and sports equipment, along with smaller pieces of furniture, books and documents.

On the other hand, the 10'x10' and 10'x15' spaces are good for storing larger items of furniture, bicycles and a larger number of possessions. If you need even more space, then 10'x20' and 10'x30' units can easily accommodate the contents of an entire 3- or 4-bedroom house.

Storage units offered by Extra Space Storage - 999 East Mission Road come at a variety of prices, starting from $94 per month for typically smaller units. However, larger spaces can set you back up to $862 a month.

We know that when it comes to self storage, there is nothing more important than quickness and accessibility. Drive-up access is an extremely convenient amenity, as you can park your vehicle right next to your unit, making it significantly easier to load and unload the items you will use storage for. However, drive-up storage units tend to be outdoors, so you might consider indoor storage spaces with climate control if you're looking to keep temperature-sensitive items in peak condition.

Yes, you might, depending on what you need to put in storage. Climate-controlled spaces keep temperatures and humidity levels consistent all the time, which means they are perfect for storing sensitive items. Seeing that a whole host of things can be damaged by varying temperatures and excessive moisture, many people choose to rent climate-controlled units for personal items such as documents, photographs, paintings, collectibles, electronics, wooden furniture, antiques and even vehicles. If you're looking to store such items that are valuable to you, consider renting a climate-controlled unit!