Houjou Ujitaka was the son of Houjou Tsunashige and grandson of Houjou Gen'an. He was the master of Kuno Castle in Sagami.

In January 1570, when Ujitaka's father died, Houjou Gen'an adopted him as heir in place of Uesugi Kagetora, who was adopted into the Uesugi Clan by Uesugi Kenshin.

After the destruction of the Houjou Clan, Ujitaka followed Houjou Ujinao to Mt. Kouya. He later served the Ikoma Clan of Takamatsu-han and became a monk, though he resided in Kyoto.