SF has not built anything, but rents decreased much more than in MN: https://www.sfchronicle.com/realestate/article/sf-rent-price...
Rents right now are an unreliable indicator because they are heavily affected by the downtown blights that are spreading in many cities.
Sale prices are much more reliable, and Minneapolis prices (as expected) grew: https://www.redfin.com/city/10943/MN/Minneapolis/housing-mar...