Store your belongings at Extra Space Storage on 900 Grant St in Denver, CO today! Our large selection of storage units, climate controlled units, manager living on site, exceptional security, parking spaces, elevator access, commercial tenants, retail space available and helpful staff make finding the right self storage unit for you easy and hassle-free. Experience the professionalism, cleanliness, and commitment to exceptional customer service that Extra Space Storage is known for. Contact us today to reserve your storage unit or set up a time to stop by and take a tour of our facility!
Staff, particularly Alison and Zen'dai, received high praise for their helpfulness, friendliness, and responsiveness, making the moving and renting process easy and stress-free.
Cleanliness and Safety
The facility is consistently noted as clean and secure, contributing to a positive overall experience for customers.
Maintenance Issues
Some customers reported ongoing maintenance issues, such as broken lights and limited availability of moving carts, which detracted from their experience.
Pricing Concerns
While many customers appreciated the pricing and promotional offers, there were complaints about frequent price increases.
Overall Experience
The majority of reviews reflect a highly positive experience, with many customers recommending the facility for its excellent service and supportive staff.
MS
Mark Salsberry
1 day ago
5.0
The staff is polite, friendly and very helpful. Allison helped us on several occasions and made everything so easy for us!
BT
Ben Tillisch
Nov 13, 2025
5.0
I’ve been using Extra Space Storage for work for the past four years and they’ve been absolutely fantastic. The facility is always clean, secure, and easy to access. I really appreciate that I can have packages delivered directly to my unit — it makes my work life so much easier. The manager, Allison, is always super friendly and helpful, and goes above and beyond to make things run smoothly. Highly recommend!
TN
Torrie (The PTO Networker)
Nov 12, 2025
5.0
Allison and Astro are amazing! Update: My unit was broken into a couple of weeks ago but the staff didn't know since the thieves didn't actually break the glass doors to get in. Allison has been very helpful in the process of filing police reports and working with the police to figure out who the thieves were that broke in.
Thank you all for great customer service and providing a clean location for storage. Out of the 3 years that I've been here, outside of the recent robbery, we've never had any issues with any uncleanliness and any issues are fixed immediately. Bonus points: They have a big parking lot.
Of course there can be a price hike, but in Downtown Denver it is expected. I am sure the city is constantly raising the price of the building's property tax, same with renting an apartment.
Added photos of break in. If you haven't checked on your unit in a while, be sure to do so soon!
KM
Korey Michelle
Oct 31, 2025
5.0
I was renting at Public Storage on Fox street and made several complaints about a rodent problem. So in my search I went to the ESS location on Grant Street and Evette and Allison talked me through their policies and showed me the facility. They were very helpful and knowledgeable ! 10/10 service
SW
Savannah Wahaus
Oct 23, 2025
2.0
I’ve mentioned multiple times that the lights above my storage unit are out, and after several weeks they still haven’t been fixed. The app that’s supposed to open the doors consistently opens the wrong side of the building, which is frustrating when you’re hauling things in or out. On top of that, there are only three moving carts available, and they’re almost always in use.
The facility itself is decent and feels secure, but the lack of maintenance and attention to customer issues really brings the experience down.
Frequently Asked Questions About Extra Space Storage
What storage unit size do I need?
The best way to determine which storage option is right for you is with our helpful Storage Unit Size Guide! It will help you estimate how many boxes and non-packed items, such as furniture and appliances, you can fit into each storage unit.
What type of storage unit do I need?
Many factors determine your best storage solution. Do you want the convenience of a ground-floor unit? Do your belongings need climate control? What about vehicle storage? We have online resources to help you explore these options to find your ideal storage unit.
What are your storage unit prices?
Monthly rates can be found online and vary by facility, unit size, features, and local market. Please use our site search tools to find pricing at a facility near you.
What's the difference between office, access, and gate hours?
The office hours are the hours of operation for the property. During these hours the Store Manager will be available to assist you with your storage needs or moving and packing supplies. The gate hours are the hours of the property, and when your unit can be accessed.
Can I buy boxes or other packing products from Extra Space Storage?
Extra Space Storage offers a variety of moving and packing supplies online and at local facilities for purchase.
What areas does Extra Space Storage serve?
Extra Space Storage serves residents of Denver near Capitol Hill, Central Denver, Alamo Placita, Lincoln Park, Baker, Denver Botanic Gardens, and more.
What is the closest intersection to Extra Space Storage?
Extra Space Storage is located at the intersection of Grant St and E 9th Ave.
Do you offer climate-controlled storage units?
Most Extra Space Storage facilities offer climate-controlled storage units as an option for anyone storing temperature sensitive items, but there are also standard storage units that don’t include climate control.
Do you offer business storage?
Absolutely! Extra Space Storage is committed to offering business-friendly storage solutions. You can store parts, materials, equipment, vehicles, inventory, and more. Certain locations offer additional business features like delivery acceptance and even some office space available for rent!
Are moving carts or dollies provided?
Nearly all Extra Space Storage facilities that offer indoor storage units with access through a hallway have push carts. If you need a push cart to transport your belongings, please let the facility manager know, and they will be happy to assist you.
What are the operating hours of Extra Space Storage on Grant St in Denver?
Extra Space Storage is open daily from 6:00 AM to 10:00 PM.
Does Extra Space Storage offer climate-controlled units?
Yes, most Extra Space Storage facilities offer climate-controlled units for temperature-sensitive items, alongside standard units without climate control.
Can I buy moving and packing supplies at Extra Space Storage?
Yes, Extra Space Storage offers a variety of moving and packing supplies both online and at local facilities for purchase.
Is there an on-site manager at Extra Space Storage?
Yes, Extra Space Storage on 900 Grant St has an on-site resident manager to assist customers.
What payment methods are accepted at Extra Space Storage?
Extra Space Storage accepts American Express, Apple Pay, Cash, Check, Discover, Invoice, MasterCard, and Visa.
Where is Extra Space Storage located in Denver?
Extra Space Storage is located at 900 Grant St, Denver, CO 80203, near the intersection of Grant St and E 9th Ave.
Are moving carts or dollies available at Extra Space Storage?
Yes, nearly all facilities with indoor units have push carts. Customers can request assistance from the facility manager.
What nearby amenities can I visit when storing at Extra Space Storage?
Nearby you can find Denver Florist for gifts and flowers, Charlie Brown's Piano Bar for dining and entertainment, and the Colburn Hotel if you need accommodation.
How can nearby employment agencies assist Extra Space Storage customers?
Employment agencies like Specialized Recruiting Group - Downtown Denver and Express Employment Professionals of Denver can help those seeking jobs in the area surrounding Extra Space Storage.
Are there nearby public schools close to Extra Space Storage?
Yes, Denver Public Schools and Denver Justice High are nearby if you are visiting the area with family or need school information.