Update 2: They've resolved the issue and are looking into their Peppol flow to prevent this problem from happening again. I've decided to take their word for it. This has upgraded my rating to a 3, whereas the original rating was 1 star.The boxes themselves are of good quality and always accessible. Various tools are available to help with loading or unloading items. Although these do occasionally disappear, this is not their fault, but the fault of other users.The temperature and safety are noticeably present, so I can leave my belongings there with peace of mind.The administration sometimes leaves a lot to be desired (read the original review), and blockages are sometimes wrongly implemented due to errors on their part. If they could address this permanently, their services would be worth 5 stars.------- Original:The boxes themselves are of good quality. However, their administration leaves a lot to be desired. I've been renting a box from them for almost a year now, but have already been blocked twice because their system doesn't register my payments, even though I paid correctly. Not recommended simply because of the stress they cause, where you randomly can't access your products.Update to comment: Payments are made via instant payment. These are processed immediately upon payment and deposited into your bank account. This is a guarantee and works well every month. This means that your system needs a certain number of days after receipt to process. Meanwhile, you immediately block access to the goods. This seems more like a bug with your slow system, which shouldn't be the customer's responsibility. Furthermore, the first time it took a considerable amount of time to receive confirmation that the error was yours, and it was resolved immediately once confirmed. However, I now notice that the structured message is missing and has been replaced by the invoice name, along with the transition to Peppol. So I'm fairly confident that this is the problem why the payment match wasn't performed, but again, I wonder why the customer should be concerned. An email had already been sent. But despite the email, I still haven't received a response, which is understandable considering the error on your part combined with the immediate closure...
Rent self storage from Cobalt Box
Cobalt Box is a self storage company in Belgium with a total of 7 locations. The cheapest storage unit from Cobalt Box starts at just € 16.53 per month.
7 Results
Venecolaan 15 - Aalter
Bisschoppenhoflaan 431 - Antwerpen
Bredabaan 960 - Antwerpen
Mechelsesteenweg 152 - Antwerpen
Oostlaan 1 - Ardooie
Bredabaan 655 - Brasschaat
Krijgsbaan 39 - Mortsel
Reviews
I've rented a unit there twice; it's very clean, the staff are friendly, and they help you on-site. I recommend it to anyone who needs storage; short or long-term, the choice is yours. Excellent service, keep up the good work!
Clean, spacious boxes. Friendly welcome. Excellent!
We rented a storage unit to temporarily store our daughter's belongings. Getting the information beforehand was very easy and comprehensive, with a very customer-focused approach. The rental process was very transparent and smooth. The storage unit was very clean, as was the entire building. Cancellation was hassle-free, and the deposit was promptly refunded. Fantastic!
Storage unit prices (June 2026)
An average self storage unit of 6.11 m² at Cobalt Box costs around € 92.16 per month, which is € 37.41 cheaper compared to the national average (28.87%). On a m² basis, self storage units at Cobalt Box average € 17.14 per m², which is € 3.15 more expensive than the country-level average. Currently, prices at this provider range from a minimum of € 16.53 per month to a maximum of € 214.77 per month.
| Statistic | Value |
|---|---|
| Lowest monthly price | € 16.53 |
| Highest monthly price | € 214.77 |
| Average monthly rent | € 92.16 |
| Average price per m² | € 17.14 / m² |
| Average size (m²) | 6.11 m² |
| Price difference vs national average | € 37.41 |
| Price difference vs national average (percentage) | 28.9% |
| Price difference vs national average per m² | € 3.15 / m² |
| Price difference vs national average (percentage) per m² | 22.5% |
Cheapest storage unit (June 2026)
Cheapest Locker Storage Units (0–2 m²)
| City | Address | Zip code | Size |
Price/Month
Some storage providers quote prices on a daily, weekly, or 4-weekly basis instead of monthly basis. The prices shown are the prices recalculated on a monthly basis.
| |
|---|---|---|---|---|---|
| Antwerpen | Mechelsesteenweg 152 | 2018 | 1.00 m² | € 16.53 / Month | View facility |
| Mortsel | Krijgsbaan 39 | 2640 | 1.00 m² | € 17.27 / Month | View facility |
| Ardooie | Oostlaan 1 | 8850 | 1.05 m² | € 23.14 / Month | View facility |
| Ardooie | Oostlaan 1 | 8850 | 1.20 m² | € 23.14 / Month | View facility |
| Brasschaat | Bredabaan 655 | 2930 | 1.00 m² | € 28.60 / Month | View facility |
Cheapest Small Storage Units (2–5 m²)
| City | Address | Zip code | Size |
Price/Month
Some storage providers quote prices on a daily, weekly, or 4-weekly basis instead of monthly basis. The prices shown are the prices recalculated on a monthly basis.
| |
|---|---|---|---|---|---|
| Antwerpen | Bredabaan 960 | 2170 | 2.03 m² | € 36.37 / Month | View facility |
| Ardooie | Oostlaan 1 | 8850 | 2.76 m² | € 39.67 / Month | View facility |
| Ardooie | Oostlaan 1 | 8850 | 3.00 m² | € 39.67 / Month | View facility |
| Antwerpen | Mechelsesteenweg 152 | 2018 | 2.08 m² | € 41.32 / Month | View facility |
| Antwerpen | Bredabaan 960 | 2170 | 3.01 m² | € 45.45 / Month | View facility |
Cheapest Medium Storage (5–10 m²)
| City | Address | Zip code | Size |
Price/Month
Some storage providers quote prices on a daily, weekly, or 4-weekly basis instead of monthly basis. The prices shown are the prices recalculated on a monthly basis.
| |
|---|---|---|---|---|---|
| Ardooie | Oostlaan 1 | 8850 | 5.85 m² | € 59.50 / Month | View facility |
| Antwerpen | Mechelsesteenweg 152 | 2018 | 5.20 m² | € 66.78 / Month | View facility |
| Aalter | Venecolaan 15 | 9880 | 5.75 m² | € 76.37 / Month | View facility |
| Aalter | Venecolaan 15 | 9880 | 7.00 m² | € 83.31 / Month | View facility |
| Mortsel | Krijgsbaan 39 | 2640 | 5.06 m² | € 85.95 / Month | View facility |
Cheapest Large Storage (10+ m²)
| City | Address | Zip code | Size |
Price/Month
Some storage providers quote prices on a daily, weekly, or 4-weekly basis instead of monthly basis. The prices shown are the prices recalculated on a monthly basis.
| |
|---|---|---|---|---|---|
| Ardooie | Oostlaan 1 | 8850 | 11.00 m² | € 121.99 / Month | View facility |
| Ardooie | Oostlaan 1 | 8850 | 12.00 m² | € 130.17 / Month | View facility |
| Mortsel | Krijgsbaan 39 | 2640 | 12.50 m² | € 169.58 / Month | View facility |
| Ardooie | Oostlaan 1 | 8850 | 18.00 m² | € 174.91 / Month | View facility |
| Aalter | Venecolaan 15 | 9880 | 12.21 m² | € 177.24 / Month | View facility |
All facilities
| Address | City | Zip code | Units | Prices starting from |
|---|---|---|---|---|
| Venecolaan 15 | Aalter | 9880 | 22 | € 52.90 / Month |
| Bisschoppenhoflaan 431 | Antwerpen | 2100 | 21 | € 28.93 / Month |
| Bredabaan 960 | Antwerpen | 2170 | 13 | € 28.93 / Month |
| Mechelsesteenweg 152 | Antwerpen | 2018 | 11 | € 16.53 / Month |
| Oostlaan 1 | Ardooie | 8850 | 16 | € 23.14 / Month |
| Bredabaan 655 | Brasschaat | 2930 | 14 | € 28.60 / Month |
| Krijgsbaan 39 | Mortsel | 2640 | 25 | € 17.27 / Month |
Market data updated on Sunday 14 June by The Storage Scanner Team. Prices, sizes, and other unit-level data analyzed from 7 Cobalt Box storage facilities. View our Methodology here.
Find Storage Units Near Me
Looking for cheap self storage? Whether you need personal storage for a move or business storage for inventory, The Storage Scanner compares thousands of storage units near you. Find the best storage space and rent storage at the lowest price today!



















