Every property has its own peculiarities but in general, a small condo may take about 1 hour to inspect. A medium sized townhouse may take approximately 2 – 2 ½ hours. A 2,500 sq ft 2 story colonial can take 2 ½ – 3 hours, and a 4,000 sq ft plus sized home may take 3 hours or more. Special outbuildings, garages in-law quarters, and barns can add time to the inspection.