Masjid Diraja Sultan Suleiman is located in Jalan Kota Raja, Klang, Selangor. The construction of this mosque had begun in 1932 with ‘Art Deco’ architectural style. This mosque was decorated with mural drawings and ‘bas-relief’ style with bright colours such as red and yellow added with sky blue and green landscape to symbolize the state of Selangor. The mosque was designed by architect Leofric Kesteven from Jabatan Kerja Raya (JKR) Selangor and handed over to Sultan Alaeddin Sulaiman Shah in 1933. The mural paintings and ‘bas-relief’ were covered by a layer of white paint and cement during its renovation process in the 1970s. The murals were recently found during conservation works of the mosque in 2016.
Inside the mosque, there are around 70 ‘bas-relief’ murals. ‘Bas-relief’ or low relief is a technique to project images with a shallow overall depth, such as on coins. This made the image to appear floating on the surface of a flat area themed with plants, hills, river and sea in Klang district. The mural drawings that are of the same age with the mosque are a part of significant objects in the architecture of the mosque. There were nothing mentioned about the people who work on this ‘bas-relief’ mural drawing. However, these drawings are very important and unique because it is the only mosque in Malaysia with these characteristics. In 2012, the mosque was registered as a National Heritage under 2005 National Heritage Act (Act 645). Department of National Heritage and JKR has appointed Lembaga Pembangunan Seni Visual Negara (LPSVN) to conduct conservation works of the mural drawings and ‘bas-relief’ in 2016.