Subzone of Hougang Planning Area
Lorong Halus is an area in Pasir Ris surrounding a road of the same name. The road leads to industrial buildings and farms in Pasir Ris Farmway. It starts from the Tampines Expressway (TPE) and ends at a pier. There is a road from Lorong Halus that leads to the Lorong Halus Wetland. The wetland treats the water flowing through it, which was a former landfill.
In the 1970s, Lorong Halus was predominantly a farming area with several rural villages (kampongs), ponds and coconut and rubber plantations. A large part of the area had formerly been used as a sewage ground (for night-soil collection) and a refuse dump. The sewage ground was shut down in the 1980s following the end of the local night-soil industry in Singapore at around that time, while the dumping ground was closed down on 31 March 1999, and since then all of Singapore's garbage has been sent to Pulau Semakau Landfill (incinerated beforehand) just off the mainland's southern coast. Today, much of the area has been restored to its original natural state as a coastal wetland open to the general public.