Attention Restoration Theory indicates that sustained attention is one of the critical factors for successful cognitive functioning. This study proposes that micro-interactions with natural green elements would increase the level of attention in individuals. This study compared the results of Sustained Attention to Response Task (SART) from 52 residents of a high-rise residential building. Participants were randomly assigned to experience one of the two versions as a 3D virtual reality environment of a building’s threshold design, one with and one without natural green elements. The experience was via immersive virtual reality (VR) goggles. Participants completed the SART twice. Once before experiencing the threshold to establish a baseline of attention and once after. The results indicate that those who interacted with natural green elements in the building threshold showed significant improvement in score and demonstrated less cognitive errors compared to those who interacted with a threshold with no natural green elements. We can argue that this research outcome tends to indicate that micro-interaction with natural green elements can have a significant positive effect on attention restoration and sustained attention.