Can Machine Learning algorithms become a useful tool in the analysis of architectural space? Motivated by this question, in this poster I introduce a Machine Learning framework for predicting the qualities of architectural spaces based on quantitative spatial features extracted out of plan images. In particular, I am interested in the quality of privacy. My goal is to train Machine Learning classifiers to distinguish intimate from non-intimate spaces on a plan based on a few quantitative features. I work with a sample dataset of house plans. For each room in each plan, a vector of spatial features is extracted that reflect either graphical or visibility properties. By running several Machine Learning classifiers on this dataset, patterns relating Space Syntax features and the level of intimacy of different rooms do emerge. At the same time, the limits in these results reinforce the need for a more complex function approximator (such as a Neural Network) to detect spatial patterns.