SoftBank's latest big real estate bet is in a start-up that's taking on the physical storage industry

SoftBank's Vision Fund has poured billions of dollars into real estate technology, from its massive stake in co-working space provider WeWork to the hundreds of millions of dollars in online platforms Opendoor and Compass.

The Vision Fund's latest big bet is in another corner of the real estate market: storage.

SoftBank said Wednesday it led a $200 million funding round in Clutter, which provides storage services, including the picking up and dropping off of a customer's items. The cash infusion values Clutter, post-investment, at $600 million.