In this commentary, the writer reflects on the legacy of Dr Liu Thai Ker, widely regarded as the “father of urban planning” in Singapore, who oversaw the planning of 20 out of 24 HDB towns and more than 500,000 homes. It traces how Singapore’s urban planning evolved from early colonial-era master plans to more sophisticated, self-sufficient town designs with integrated amenities, transport links, and community spaces. Key milestones include the 1971 Concept Plan, which decentralised the population into satellite towns, and the 1991 revision that introduced regional centres and a more connected urban network, including developments near institutions like SP. The article highlights how these early blueprints shaped modern Singapore, turning planning ideas into highly liveable, well-connected towns that continue to define the city today.