Oregon Governor Kate Brown signed House Bill 2001, which authorizes missing middle housing in large cities’ single-family zones. The legislation ends bans on duplexes for every low-density residential lot in all cities with more than 10,000 residents and all urban lots in the Portland metro area. In cities of more than 25,000 and within the Portland metro area, the measure would authorize duplexes, triplexes, fourplexes, attached townhomes and cottage clusters on some lots in all areas zoned for residential use. Oregon is now the first state to pass state-wide legislation that aims to address single-family zoning.