The station Sassari is an urban site located in the east part of the Sassari city, capital of the metropolitan network of Northern Sardinia, Italy. It lies 225 m asl over a plateau and with its about 547 km2 of municipal area is the largest municipality of the region and one of the largest in Italy. However, the urban area represents only 4.10% of the total land use, whereas the rest is covered by crops and arable lands (about 67%), by forests and Mediterranean maquis (about 20%) and industrial, commercial and communication networks (about 1.5%). The residential context offers an interesting case study to measure CO2 fluxes due to its composite morphology and land cover type distribution.