Entering the second decade of its ownership of the historic Humboldt Gardens tavern building, and having seen two redevelopment proposals fail to materialize, the city is again soliciting offers to redevelop the structure. The property is locally designated as historic, requiring any buyer to restore the exterior under guidelines enforced by the Historic Preservation Commission. The sale would also include performance restrictions and a provision allowing the city to reclaim the property if the developer fails to comply. The building was included on a city list of Milwaukee’s 10 most endangered historic buildings in 2000. Historic Preservation Commission staff previously described it as the only building from that list that has neither been rehabilitated nor demolished.