From an interview with Todd Hido at Lens Culture:

LC: Your series Homes at Night is one of my favorites. We never see human silhouettes or the homes’ inhabitants. Why is it important to you that the houses appear on their own?

TH: Because of the very simple fact that if it is an empty shell, the viewer can place their own memories within it or create a narrative that would otherwise be blocked by the reality of what is actually inside.