Nathaniel H. Rogg, 65, retired executive vice president of the National Association of Home Builders, died of cardiac arrest Tuesday at his home in Washington.

A nationally known economist and housing expert, Mr. Rogg had embarked on a year-long study of displacement of inner city residents due to changes of ownership and rehabilitation of older dwellings. He recently returned from Seattle where he was working on the project under the sponsorship of the U.S. League of Savings Associations. He had earlier completed a study of urban policy and inner city revitalization for the league.

Before retiring from NAHB in 1977, Mr. Rogg had served 11 years in that group's top staff post. During his tenure NAHB built and occupied the architecturally applauded National Housing Center at 15th and M Streets NW. Earlier he had served NAHB as chief economist during a total 23-year service.

Just before his retirement, Mr. Rogg had suggested in an interview that the president of the United States "should get housing off the back burner and recognize it as the major socio-political-economic issue in the nation today."

During 1962 and 1963, Mr. Rogg was a visiting professor of economics at Harvard University, teaching construction and housing economics.

A native of New York City, he held bachelor's and master's degrees in economics from New York University. He also earned a doctor of law degree from George Washington University and did graduate work in economics at the Brookings Institution here. Mr. Rogg had also served as a government economist and statistician.

In October 1972, he addressed a finance seminar held by the Spanish housing industry in Madrid. As NAHB chief executive, he also made many speeches on housing in major U.S. cities.

Mr. Rogg was lauded in 1976 by John C. Hart, then the NAHB president, for having done a "tremendous and fantastic job." Hart added that the NAHB credibility with the government and the consumer "has never been higher."

Mr. Rogg was known for his advocacy of better housing for low-income families.

He was a member of the D.C. Bar and of the Coif, the national honorary legal fraternity. He also was a member of Phi Beta Kappa.

During World War II, Mr. Rogg served as a naval officer.

Survivors include his wife, Genevieve of the home, and five children by a previous marriage, David and Daniel, both of Washington, Dr. Lisa Rogg, of Houston, Elizabeth, of New York City, and Katherine, of Washington.