Social harmony is the bedrock of Singapore's prosperity and success for the past 53 years. Housing policies that promote multi-racialism are critical to ensuring that Singaporeans have the opportunities to interact with people from other racial and socio-economic background, and safeguard against the formation of neighbourhood enclaves and ghettos. The Ethnic Integration Policy (EIP) was implemented in 1989 to serve this objective. Based on longitudinal data from 2016 to 2018, and findings from a series of focus group discussions, this study evaluates the utility and outcome of the EIP policy through a geographic information systems (GIS) perspective. While the EIP has largely served its intended purpose, the current analyses have also identified neighbourhoods that contain a high concentration of communities with selected attributes that may, in the long-run, impact social cohesion. This study offers a few suggestions on urban planning and ways to encourage intercultural engagement.