• The term “火城” (literally, “fire city”) originates from the Hokkien term her sia. One explanation for how the place got its name is that the residents there feared the gas plant might explode.
• The Kallang Gasworks, built in 1862, occupied an area of 3.14 hectares. It was the only power plant in Singapore at the time that produced gas by burning coal for street lighting in Singapore. The Kallang Gasworks was monitored 24 hours, seven days a week.
• It was originally managed by a private organisation called PowerGas, to provide gas for public street lighting. In 1901, the company was taken over by the Municipal Commission.
• In 1958, coal was replaced by fuel oil. As a result, new oil gasification plants were installed in the Kallang Gasworks.
• In 1963, after the establishment of the Public Utilities Board (PUB), the gas plant was no longer responsible for gas, electricity and water services.
• In 1975, the Kallang Gasworks reformed fuel oil to produce natural gas.
• In 1995, the gas and electricity operations of the PUB were corporatised. Singapore Power was established as a result to undertake these operations.
• In July 1997, gas production operations were moved from the Kallang Gasworks to Senoko.
• In March 1998, Kallang Gasworks was officially decommissioned after producing gas for more than 130 years.

The intersection of Kallang Road and Lavender Street, along with the surrounding areas, is commonly known as “火城” due to its proximity to the Kallang Gasworks. (Lianhe Zaobao, 15/10/1995)