Effrus M. Freeman, 80, a recreational land developer in the Washington area for many years, died June 5 at Calvert Memorial Hospital in Prince Frederick. He had a heart ailment.

Mr. Freeman was born in London, England, and grew up in Washington. He served in the Navy during World War I and then moved to Hollywood, Fla., where he was a salesman for a land developer.

In the early 1920s, he moved to Los Angeles, Calif. He earned a degree in optometry at the University of Southern California and practiced in Los Angeles until the late 1940s. He also remained active in the real estate business in California. He served in the Navy again during World War II.

In 1950, he returned to Washington and developed the Shenandoah Retreat vacation project at Berryville, Va. In 1952, he began developing the White Sands Beach and Yacht Club at Lusby, Md.

About 1960, he moved his residence from Washington to the White Sands development. In the early 1970s, he ended his real estate activities there. But he remained president of the White Sands Corp., which operates a restaurant and the marina at the club, until his death.

Mr. Freeman was a Mason and a member of the Almas Temple in Washington. He also was a member of the Calvert County Board of Trade.

Survivors include his wife, Vera, of Lusby, a son, Lee W., of Washington, and three granddaughters.