Tamchog lhakhang was built by Dubthob Thangtong Gyalpo in the fourteenth century ( seventh Rabjung) to protect the lower part of Paro Valley after he had a vision of Tachog Balaha the Supreme steed of Guru Rinpoche.

According to the Biography of Drubthob Thangtong Gyalpo Tachog Lhakhang was established by Thangtong Gyalpo Arriving at a place called Phurdo, where he saw a five coloured rainbow upon which were seated Buddha Amitabha, Avalokiteśvara and Padmasambhava and declared that the place was as sacred as Potala mountain. At Tachog-gang, at the foot of the Phurdo mountains, he established Tachog Lhakhang temple and made sacred representations of the Buddha’s body, speech and mind. This temple, which is located opposite the road from Paro about 5km before Chudzom, is still maintained by the descendants of Drubthob Thangtong Gyalpo.

Source: Biography of Drubthob Thangtong Gyalpo