Low space availability, high temperatures and a barren environment may contribute to the occurrence of abnormal behaviours and lesions in intensive pig farming. The present study evaluated the housing conditions (HCs), that influence behavioural measures (BMs), and lesion and health measures (LHMs) in growing pigs reared in an Italian farming system. Data collection was carried out on two groups of pigs in each farm (Farm A and Farm B), tail docked (DT) and tail undocked (UT). The HCs measured were dry and wet bulb temperature, light, humidity, air quality, average body weight, pen level of cleanliness, space, and feeder front allowance. Light intensity was negatively associated with positive behaviour (coefficient: −0.01; p