Assets of National Permanent Federal Savings and Loan Association, the area's second-largest thrift institution, rose $30 million last year to a record $591 million on Dec. 31, president John W. Stadtlet told owner-depositors at the recent annual meeting.

Savings deposits increased 12 per cent to $481.5 million and real estate loans totaled $500 million on Dec. 31.

During 1976, National Permanent issued more than $80 million in real estate loans, of which $20 million was for property within the District, Stadtler reported.

Earnings of the S&L totaled $2.9 million in 1976, which was transferred to surplus and reserve accounts.

Stadtler said his association will move to its new headquarters tower at 18th Street and Pennsylvania Avenue NW this spring, with a grand opening scheduled for June 1.

The current main office at 14th and G Streets NW will become a National Permanent branch, giving the association 11 offices. The S&L owns the 14th and G location and an adjacent parking lot which is expected to be developed in future years as an office project.

Senior vice president and secretary Joseph F. Zegowitz will retire March 31 after a career that began with the S&L in 1938. He will remain on the board of directors.

Named to succeed Zegowitz as corporate secretary is Charlotte H. Kodrich.