In 1665, Lord Nguyen Phuc Tan had the pagoda renovated. In 1710, Lord Nguyen Phuc Chu casted the giant bell called Dai Hong Chung (height: 2,5m, diameter: 1,4m, weight: 2.052kg). In 1715, Lord Nguyen Phuc Chu constructed a stone stele (height: 2,6m high, width: 1,25m) on a stone turtle which is 2,2m long and 1,6m wide.

The two main architectures of Thien Mu pagoda are Phuoc Duyen tower and Dai Hung palace. The 21m-high tower has octagon shape and 7 storeys. Each story is dedicated to a Buddha. Dai Hung which is the main palace of Thien Mu pagoda has a majestic architecture. Beside the bronze Buddha statute, there are numerous bronze statutes and chimes made in 1677. Also, there is a wooden horizontal lacquered board presented by Lord Nguyen Phuc Chu in 1714.

Since its construction, the pagoda was renovated 8 times (1665, 1714, 1815, 1831, 1844, 1899, 1907 and 1957). Through renovations, the pagoda still maintain its majesty.

Thien Mu pagoda was recognized as national relic (art architecture) on decision 1964-QDVH/TT dated August 27^th, 1996 of the Ministry of Culture and Information