The automated estimate
What Zillow, Redfin, and every bank portal produce.
What it is good for
Free, instant, and directionally useful for a quick orientation.
Where it falls down
It averages comparable sales. Where a corridor holds two genuinely different kinds of house — a 1954 original and a 2023 rebuild on the same block — an average lands in the gap between them and describes neither. It also cannot see inside your house.