A geospatial analysis was performed in the "zip code" level. NYC zip code shape file was merged with the MSE of each building on zip codes. The mean value of MSE were calculated at the zip code level, and then visualized as can be seen in Figure 5. We can observe that MSE in the zip code level are similar in Ridge and Least Square regressions. However, ridge regression yields slightly less MSE values for some zip codes than Least Square as seen in Fig. 5.