He succeeded in the foundation of Nitta no sho to make FUJIWARA no Tadamasa of the Taira family group as the ryoke (virtual proprietor of manor) and called himself Nitta shokan (an officer governing shoen [manor]).
保元2年（1157年）、平家系の藤原忠雅を領家として新田荘の立券に成功、新田荘司と称した。