Tadamori was also governor of the provinces of Harima, Ise, Bizen, and Tajima.

As a servant of the Court, Tadamori waged campaigns, beginning in 1129,[1] against pirates on the coasts of San'yōdō and Nankaidō.

He also served his own clan in battling the warrior monks of Nara and of Mount Hiei.

Tadamori is also credited with the construction of the Rengeō-in, a major and now-famous temple in Kyoto, which includes the longest wooden building in the world, the Sanjūsangen-dō.

Tadamori was granted the governorship of Tajima province as a reward for completing this project.