Mini U Storage - 3900 East 45th Avenue, Denver, CO 80216

4.8/5 - 532 Reviews
Location:
3900 East 45th Avenue, Denver, CO 80216
Office hours:
  • Mon-Fri: 9 a.m. - 6 p.m.
  • Sat: 8 a.m. - 6 p.m.
  • Sun: 9 a.m. - 3 p.m.
(303) 321-3055

Mini U Storage - 3900 East 45th Avenue, Denver, CO 80216

  • Drive-Up Access

    Drive directly up to your unit for easy loading and unloading

  • Retail Available

    Moving and packing supplies available for purchase on-site

  • Onsite Manager

    On-site staff available to assist with property needs

    Not sure which size you need? Check our size guide to find the perfect fit.
    5x10 Self Storage 50 Sq. Ft.
    Drive-up Access First Floor Access
    $120/mo
    10x15 Self Storage 150 Sq. Ft.
    Drive-up Access First Floor Access
    $215/mo
    10x10 Self Storage 100 Sq. Ft.
    Drive-up Access First Floor Access
    $207/mo
    10x20 Self Storage 200 Sq. Ft.
    Drive-up Access First Floor Access
    $292/mo
    No units are currently available.

    Amenities & features

    • Drive-Up Access
    • Retail Available
    • Onsite Manager
    • Truck Rentals
    • Security Camera
    • Gate
    • Parking
    • Credit Cards Accepted
    • First Floor Access
    • Online Payment

    Customer reviews

    4.8/5
    Average rating
    532
    Number of reviews

    Read some helpful reviews of Mini U Storage, shared by real renters with genuine experiences and honest opinions.

    I have had the best experience here at this location! Andrea is the greatest!! I am from Texas here on business, Andrea has helped me every step of the way, and this is hands down one of the cleanest places I have ever visited or done business with. 10/10 recommended to anyone who is needing to store anything! ... Read more
    Chance V. - 24 February 2026
    Paul at Mini U Storage was fantastic to work with. He was friendly, knowledgeable, and made the entire process quick and stress-free. The facility is clean, secure, and well-run, and Paul’s customer service really stands out. Highly recommend ... Read more
    John V. - 24 February 2026
    Andrea is an amazing woman! It's so great to know that I can get the best customer service possible. Her staff is so great. Maintenance is awesome! It's a great location for a great price and amazing staff!! ... Read more
    Julia P. - 23 February 2026
    Ethan W. - 23 February 2026
    ????? Andrea is the reason this place deserves five stars. She went above and beyond—walked me through everything, personally showed me the unit, had it cleaned again just to be extra thorough, let me set my own gate PIN, and even offered supplies. Nothing felt rushed, nothing felt transactional—just genuinely supreme customer service. If you’re considering Mini U Storage in Denver, ask for Andrea. Absolute rockstar. ... Read more
    Bubblegum G. - 24 January 2026
    Jonathan L. - 28 August 2025
    This has been the best experience I've had with a storage facility. They have great customer service and are willing to work with you. I would recommend to anyone e I know that needs a storage. Thank you Andrea and Tavon keep up the great work! ... Read more
    Secrets K. - 28 June 2025
    This was a great place to store additional stuff prior to a move. The location is very convenient and easy to access. The biggest perk of this place is their customer service. Great customer service is hard to come by these days, and I'm shocked whenever people are accommodating and kind. Every person I've talked to at this site has been kind, respectful, and super helpful! I would totally use this place again! ... Read more
    Sukhmeet S. - 23 June 2025
    Christina M. - 17 June 2025
    The managers made the rental experience so easy and convenient for us. Having a truck rental to help move our things was a huge benefit as well. We appreciated the great customer service a lot! We highly recommend this facility for storage. ... Read more
    Renee B. - 31 March 2025
    Excellent Customer Service! They were very professional an helpful! I would definitely recommend to anyone! Andrea & Mike did ~~RAISE~~ WORTHY exemplary work!! I was blown away by their hospitality an kindness! ... Read more
    Miranda - 31 March 2025
    Sarah R. - 25 March 2025
    Gigi - 4 March 2025
    Chris L. - 28 October 2024

    About this facility

    Located at 3900 East 45th Avenue in the bustling city of Denver, CO, this Mini U Storage facility offers a range of unit sizes, including small, medium, and large, tailored to meet various storage needs. Whether you’re a Denver resident downsizing to a smaller home or a local business owner seeking extra space, this facility has you covered.

    Convenience is a top priority here, with drive-up access, first-floor access, and ample parking for easy loading and unloading. For added peace of mind, the property is equipped with security cameras and features an onsite manager to assist with any questions during your visit. The facility also provides gate access for controlled entry, ensuring your belongings remain secure.

    This Mini U Storage facility goes the extra mile with practical amenities like retail moving supplies and truck rentals, making it a one-stop shop for your moving and storage needs. With flexible payment options, including online payment and credit card acceptance, this is an ideal choice for residents and businesses in Denver looking for secure, accessible, and hassle-free storage solutions.

    Price comparison

    See how this facility's unit prices compare to others in Denver, broken down by size.

    Small $120/mo
    Location minimum Location maximum
    $14/mo $330/mo
    Medium $211/mo
    Location minimum Location maximum
    $39/mo $571/mo
    Large $292/mo
    Location minimum Location maximum
    $59/mo $1493/mo

    Location & walkability

    This storage facility is in an area with moderate walkability and some public transit options. A personal vehicle may be needed for certain trips.

    48

    out of 100

    Walk Score

    Car-Dependent

    Most errands require a car

    48

    out of 100

    Transit Score

    Some Transit

    A few nearby public transportation options

    49

    out of 100

    Bike Score

    Somewhat Bikeable

    Minimal bike infrastructure

    Walk Score®: 48, Transit Score®: 48, Bike Score®: 49

    Neighborhood highlights

    Located near shopping, car wash stations, and other local conveniences, this storage facility helps you make the most of every visit.

    • 40th & Colorado

      Transportation 0.09 miles

    • 40th & Colorado Track 2

      Transportation 0.09 miles

    • 40th & Colorado Track 1

      Transportation 0.1 miles

    • 40th & Colorado Gate A

      Transportation 0.11 miles

    • 40th & Colorado Gate B

      Transportation 0.11 miles

    • 40th & Colorado Park-n-Ride

      Services 0.14 miles

    • 40th & Colorado Park-n-Ride

      Services 0.19 miles

    • DB's Wine and Liquor

      Shopping 0.22 miles

    • Popeyes

      Food & Drinks 0.23 miles

    Frequently Asked Questions

    The right storage unit size depends on what you plan to store and how much space you need to move around your items.

    5x5 or 5x10 units are great for smaller loads, such as chairs, lamps, small furniture pieces, boxes, books, and documents.

    10x10 or 10x15 units work well for larger furniture, bicycles, appliances, and the contents of a small apartment.

    10x20 or 10x30 units can typically fit the contents of a three-bedroom home, including large furniture and multiple appliances.

    If you’re unsure which size is best, a unit size calculator can help estimate the right fit based on the items you’re planning to store – helping you avoid paying for more space than you need.

    The facility at 3900 East 45th Avenue is accessible during regular access hours, typically Mon-Fri: 9 a.m. - 6 p.m., Sat: 8 a.m. - 6 p.m., Sun: 9 a.m. - 3 p.m. Office hours and gate access times may differ, so it’s a good idea to check the facility’s posted schedule before your visit.

    To open your storage unit door, start by unlocking it, whether it uses a traditional padlock or a Bluetooth-enabled smart lock. Once unlocked, grab the bottom handle and lift or pull up the roll-up door until it’s fully open.

    If you’re using the unit for the first time, make sure the lock is properly removed before opening the door to avoid damage.

    Security helps protect your belongings while they’re in storage and gives you peace of mind between visits. Many self storage facilities use a combination of features such as video surveillance, gated access, on-site management, and well-lit premises to help deter unauthorized access.

    At Mini U Storage - 3900 East 45th Avenue, available security amenities may include Security Camera, Gate, Onsite Manager, designed to help keep your items protected.

    Yes, most standard vehicles can be stored in self storage units. A 10x20 unit typically provides enough space for a car, while outdoor or designated parking areas may be available for larger vehicles.

    For safety reasons, most self storage facilities restrict certain items. These commonly include:

    • Hazardous, flammable, or toxic materials
    • Perishable food
    • Live plants or animals
    • Cash, firearms, or irreplaceable valuables

    Always check with the facility at 3900 East 45th Avenue for specific restrictions and recommendations.

    Storage units for rent – StorageCafe
    Contact this property now:
    (303) 321-3055