Abstract: A system and protocol for the environmental assessment of residential properties and the like. The system includes a standard tool kit and standard equipment to be used by the inspector in inspecting and sampling suspected contaminants in the property. The inspector follows a precise protocol (step-by-step procedure) and also uses especially designed forms to record the inspection, the location of the suspected areas of contaminants, the type and number of samples of suspected contaminants taken, the readings taken of contaminant levels and the time at which the sampling and readings were taken. In addition, a specific checklist and reporting form is used to record the results of the inspection of the exterior of the building for the presence of suspected contaminants.