Planned additions to the University Place, Wash., property, which would be made after it hosts the 2015 U.S. Open, include a five-story hotel, a conference center, cafe and restaurant, swimming pool, and a proposed second golf course.

Sonnenblick Development, a California hotel developer, is drawing up plans to build a 220-room hotel and a second 18-hole golf course on the county-owned University Place, Wash., property. The firm has until mid-June to develop the project and finance plans, and if a deal is reached, construction would begin after the property hosts the U.S. Open in June 2015.