Observe the Feng Shui of the neighborhood to understand the big scale Feng Shui.
Houses may look grand but no matter how nice a house is. Its Chi is ultimately affected by the surrounding neighborhood Feng Shui.
Be wary of unusually "quiet" neighborhoods. Stay away from neighborhoods that have too many vacant houses, no sign of children, pets, or other fun human activity like gardening. These neighborhoods got inactive Qi / Chi.
Too many unfinished, run-down houses indicate overall bad feng shui too.
Activity from children, animals and people doing things like sports is a sign of a healthy Feng Shui neighborhood.