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Extra Space Storage - 21892 Cobalt Avenue, Caldwell, ID 83605

Self Storage, Car Storage, RV Storage 50 - 800 Sq. Ft.
4.8/5 - 303 Reviews
Location:
21892 Cobalt Avenue, Caldwell, ID 83605
All units
Small
Medium
Large
Parking
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Units Availability
Small Storage Unit
5x12
Self Storage
60 Sq. Ft.
$76/mo
Small Storage Unit
5x10
Self Storage
50 Sq. Ft.
$65/mo
Medium Storage Unit
10x15
Self Storage
150 Sq. Ft.
$113/mo
Medium Storage Unit
10x12
Self Storage
120 Sq. Ft.
$120/mo
Medium Storage Unit
10x10
Self Storage
100 Sq. Ft.
$107/mo
Large Storage Unit
30x15
Self Storage
450 Sq. Ft.
$321/mo
Large Storage Unit
24x30
Self Storage
720 Sq. Ft.
$430/mo
Large Storage Unit
24x25
Self Storage
600 Sq. Ft.
$322/mo
Large Storage Unit
20x40
Parking
800 Sq. Ft.
Parking
RV Storage
$374/mo
Large Storage Unit
20x15
Self Storage
300 Sq. Ft.
$261/mo
Large Storage Unit
12x40
Parking
480 Sq. Ft.
Parking
RV Storage
$262/mo
Large Storage Unit
12x30
Parking
360 Sq. Ft.
Drive-up Access
Parking
RV Storage
$286/mo
Large Storage Unit
12x25
Parking
300 Sq. Ft.
Drive-up Access
Parking
RV Storage
$261/mo
Large Storage Unit
10x40
Parking
400 Sq. Ft.
Parking
RV Storage
$230/mo
Large Storage Unit
10x30
Parking
300 Sq. Ft.
Drive-up Access
Parking
RV Storage
$261/mo
Large Storage Unit
10x25
Parking
250 Sq. Ft.
Drive-up Access
Parking
RV Storage
$224/mo
Large Storage Unit
10x20
Parking
200 Sq. Ft.
Car Storage
Drive-up Access
Parking
$192/mo
Large Storage Unit
8x25
Parking
200 Sq. Ft.
Car Storage
Parking
$79/mo

Amenities

  • Indoor
  • Drive-Up Access
  • Retail Available
  • Onsite Manager
  • Contactless Renting
  • Security Camera
  • Gate
  • Parking
  • Keyless Unit Access
  • Online Payment
  • RV Storage

What customers are saying

4.8/5 - 303 Reviews

Read some helpful reviews of Extra Space Storage at 21892 Cobalt Avenue, shared by real renters with genuine experiences and honest opinions.

I was SO pleased with Chelsea’s customer service. She made the experience personalized and felt like I was one of the only customers there! I recommend storing here to anyone that needs a storage unit! ... Read more
Cheyenne D. - 5 March 2026
I am extremely happy with the front desk receptionist, Chelsea at the Middleton storage. She was extremely patient and understanding when I had things going on. Her customer service skills are 10/10 in my opinion. She is extremely sweet and she was super helpful with my dad as well. Would definitely recommend them for a storage place. ... Read more
Meghan S. - 11 February 2026
Chelsea always went above and beyond, no matter the situation. She was ALWAYS cheerful, helpful and cordial. I had several constraints at the time I rented a unit there. Chelsea always managed to mitigate any potential stress I was having from a financial/payment standpoint and worked diligently with me to provide options and support. I rarely come across the level of customer service that Chelsea provides anymore and when I did experience quality service in the past, it would rarely repeat 24/7 quite like the way she has always provided. Thank you Chelsea!! ... Read more
Michael T. - 1 February 2026
Chelsea has been such a sweetheart and one of the best people i’ve ever worked with. she always has a smile and always helps me out when there’s a problem. it’s always a great pleasure working with her and she always has amazing customer service. She always goes above and beyond doing her job and i really appreciate her every single time i speak to her. ... Read more
Stacey A. - 26 November 2025
Reserved online the morning of and the units were ready when we got there. The facility is and service was outstanding. We had some unknown as far as when we would move out and they were upfront, but flexible. I will look to use them again if I ever need to. ... Read more
Ryan H. - 3 October 2025
I toured this facility and was very surprised with the upkeep, friendliness of staff, and all around quality of customer service. All my questions were answered and i was made to feel like my needs mattered! Could not be happier with my experience at this location. Would highly recommend others looking for storage to give this place a chance! ... Read more
Darren R. - 1 October 2025
Frank C. - 23 August 2025
Moving is never easy. Extra Space Storage took some of the sting out of it. The staff is very friendly and professional. Billing, payment and access to the locker was seamless. All in all a wonderful experience. I’d do it again in a heartbeat. ... Read more
lesscash - 31 July 2025
I can't say enough good things about this place. Chelsea and her team are top notch. The place is clean and secure. You won't find a better storage facility anywhere. Thanks for all your help. If I ever need to store anything again, it will definitely be there! ... Read more
Mike L. - 28 July 2025
I recently rented storage space at the Caldwell ID property. I had specific needs, and Chelsea was phenomenal in communicating with me and finding the right space. When I finally arrived, the entire staff was so friendly and helpful. I couldn’t be more pleased with the excellent customer service and cleanliness of Extra Space! Thanks for a great experience. ... Read more
Cindy P. - 8 April 2025
Omg! I even asked the ladies if they were from Middleton being a small time kindness and generosity given out. What a breath of fresh air I absolutely love this place if Anyone is checking reviews doing comparison this is a place that you can trust. They will work with you if there’s an issue with your account.. It just felt so “home” Thanks, ladies!! Just kindness and appreciate a human being coming through the door and not as a number To fit the Business quota. God bless Rhonda ... Read more
Rhonda M. - 5 April 2025
Really great service. I had reserved a unit in advance and then came by to check it out in person before purchase. They were running an online special at the time but when I finally got around to putting money down, the price had risen. Even so, I still received my rate that I had referenced when I first reserved the unit over the phone. Staff was friendly and explained everything very well. I’m happy with my choice! ... Read more
Aliya B. - 12 March 2025
Having multiple storage units in various states, the Extra Space Storage unit in Middleton, ID, is by far the easiest to work with. I am physically in Idaho only a few months of the year, yet I never worry about the items I have stored there. The property is well taken care of by the manager, Chelsea. They are easy to get in touch with and go above and beyond in the customer service department. I wish all the storage facilities I use were as reliable and accommodating as the Extra Space Storage in Middleton. ... Read more
Liz O. - 4 March 2025
If I could give no stars, I would. This place is absolutely horrible and anyone who stores their assets under the covered shelter is at SIGNIFICANT risk of having them stolen, like I experienced. My ATV and trailer were stolen out of the facility within the past day or two. Fortunately, it was found north of Middleton but it was damaged. I called them and they said "sorry, we're not liable for damage." Actually, that's not true when they're negligent - they have a duty to provide a secure storage facility and they don't. The damage to the property occurred after it was stolen. But the attorney I'm hiring will sort that out. When I got there today, there was a sign saying they're closed for the day, yet the man door right next to the big gate was left open. WHY DO YOU EVEN HAVE A MAN DOOR THERE IN THE FIRST PLACE??? When I took my ATV back over there on 2/18, it was before hours and the big gate was just standing open. I called them to alert them to that security risk and the response was "yeah, when it's foggy the sensor just thinks something is in the way so the gate stays open." They continue to be negligent in protecting their customers' property. I hope the cops can identify the vehicle through the security footage and I fully intend on pressing charges. I'm also going to ensure that Extra Space Storage is held accountable. If you have stuff there or are considering them, you've been warned. ... Read more
Brian H. - 27 February 2025

Overview

Located at 21892 Cobalt Avenue in Caldwell, this Extra Space Storage facility offers a variety of unit sizes, including small, medium, and large, to accommodate diverse storage needs. Whether you're decluttering your home, storing business inventory, or securing seasonal items, this facility provides convenient options tailored to your situation.

This facility is equipped with drive-up access and indoor units, making loading and unloading your items a seamless experience. It also features parking and RV storage, ideal for those needing extra space for vehicles or recreational equipment. Security is prioritized with multiple security cameras and an onsite manager, ensuring your belongings are well-monitored. For added convenience, this facility offers contactless renting, keyless unit access, and online payment options, making the rental and management process hassle-free. Need moving supplies? Retail items are available right on-site.

Whether you're a homeowner, a small business owner, or an outdoor enthusiast, this Extra Space Storage facility stands out with its secure, modern features and vehicle-friendly amenities in the growing Caldwell area.

Nearby Storage Units

$76 - $780

Republic Storage - 10150 Highway 44, Middleton, ID

SELF STORAGE, RV STORAGE
1.43 miles away
$102 - $455

Public Storage - 809 South KCID Road, Caldwell, ID

SELF STORAGE, CAR STORAGE, RV STORAGE, BOAT STORAGE
1.97 miles away
$45 - $90

Easy Access Storage - 14852 Highway 44, Caldwell, ID

SELF STORAGE, CAR STORAGE, RV STORAGE, BOAT STORAGE
3.92 miles away
$35 - $160

208 Storage - 4114 Nelson Lane, Caldwell, ID

SELF STORAGE, CAR STORAGE, RV STORAGE
4 miles away
Image for Ustick Storage - 17848 Middleton Road, Nampa, ID No Photo Available
$40 - $115

Ustick Storage - 17848 Middleton Road, Nampa, ID

SELF STORAGE, CAR STORAGE, RV STORAGE
4.01 miles away

Storage units in nearby cities

Want to see how Caldwell, ID, compares to other places? There are plenty of great options nearby. Middleton, ID, 9 miles away, has 2 self storage facilities with rents starting from $76/month. Or you could drive to Emmett, ID, just 20 miles distant to find other options, where the cheapest units in the 4 facilities there can be rented for $89/month. In Ontario, OR, just 34 miles away, there are 3 facilities available, offering rents as low as $45/month.

Storage units in Middleton, ID Within a 9-mile radius
2 Facilities
From $76/mo
Storage units in Emmett, ID Within a 20-mile radius
4 Facilities
From $89/mo
Storage units in Ontario, OR Within a 34-mile radius
3 Facilities
From $45/mo

Check out storage units in trending cities

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 Boise City, ID and Meridian, ID, starting from $35 and $38, respectively. Even more storage is available and with low starting rents, in Nampa, ID ($33), Coeur d'Alene, ID ($20) and Post Falls, ID ($30).

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Storage units in Meridian, ID
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Storage units in Coeur d'Alene, ID
14 Facilities
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Storage units in Post Falls, ID
22 Facilities
From $30/mo
Storage units in Eagle, ID
3 Facilities
From $49/mo
Storage units in Kuna, ID
4 Facilities
From $50/mo
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3 Facilities
From $40/mo
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Browse storage units in all Idaho cities.

Frequently Asked Questions

There is a wide array of amenities available for the storage units that Extra Space Storage - 21892 Cobalt Avenue has to offer. These amenities include Indoor, Drive-Up Access, Retail Available, Onsite Manager, Contactless Renting, Security Camera, Gate, Parking, Keyless Unit Access, 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 - 21892 Cobalt Avenue can satisfy all of your storage needs. Different sizes here range from 50 to 800 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 - 21892 Cobalt Avenue come at a variety of prices, starting from $65 per month for typically smaller units. However, larger spaces can set you back up to $430 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!