Precast concrete products are widely adopted in the Singapore construction industry due to the rising demand from public housing projects. One of the solutions to reduce construction duration and improve efficiency would be to use precast concrete products which are able to provide a cost-effective way of carrying out “system building” types of construction projects. Herrmann et al. (2008) proposed that besides classical economical production objectives (e.g. cost, time and quality), environmental driven objectives (e.g. low CO2 emissions) should be considered in the production process. Due to the rising recognition of global climate change, the term “CO2 emissions” is often used as one environmental sustainability indicator for the products. This research therefore aims to apply the lean production concept in precast concrete factories. The main objectives of this study are: 1) to highlight the link between the lean concept and sustainable development; 2) to examine the contribution of lean to a few sustainable management practices; and 3) to investigate the contribution of lean when assessing environmental values.