The work of identifying the Tangible Heritage in Penang was conducted by GTWHI from year 2012. In 2012, the process of identifying focused on the area of Penang Island and Jerejak Island (except Penang Hill).

Phase 2 was conducted in 2013, and this inventory was expanded to Seberang Perai Utara.

In 2014, the list of inventory was expanded to Seberang Perai Tengah. The team is still in the process of verifying and finalizing the Tangible Heritage list in Seberang Perai Tengah.