We describe the OTELO survey and present deep BVRI imaging data of the Groth field. Galaxy number counts and galaxy clustering are analyzed. We find an excellent agreement between observed and mock data number counts. We also find a evidences about a galaxy clustering evolution and a strong dependence of the angular correlation function with the observed V-I color. Our data favor a flattening of the clustering amplitude with median apparent magnitude. The good general agreement between our clustering analysis and the estimates from the mock data is remarkable.