To evaluate the ability of turfgrass systems to sequester carbon in tropical cities, we deployed a flux gradient system built by solid-state CO2 sensors in a residential lawn of Singapore to measure continuously the production of carbon bellow-ground and soil respiration CO2 efflux for a period of almost three years (Sep 2014 to Jul 2017). The data presented here include 30-min average data of soil temperature, soil moisture and soil CO2 concentration at 2, 8 and 16 cm of depth, along with the post-processed soil efflux and carbon production.