Officials for the city of Portland, Ore., are considering two bids to build a companion hotel to the 22-year-old Oregon Convention Center. Langley Investment Properties, Starwood Hotels and four other partners want to construct a Sheraton-flagged hotel on one of two sites under consideration. Hyatt Hotels Corp. along with eight other partners also have submitted a bid. A recommendation from the Metro Council, the regional government that serves the 1.4 million people who live in the 25 cities and three counties of the Portland metropolitan area, and the Portland Development Commission is expected in August. The convention center, which has 255,000 square feet of exhibit space and 50 meeting rooms, plans to apply for LEED Gold certification in 2013; it is Silver certified now.